ItemCommand Event of RadGrid is not Firing

[Naveen kumar]

Hi all,
         In the code below Item Command of grid with IdrgAttendenceDetails is not getting fired when a link button present in a template column which is created dynamically in code behind is clicked. Please have a look at the code and specify a answer for it thank you.

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Drawing;
using System.Diagnostics;
using Telerik.Web;
using Telerik.Web.UI;
using System.Data.SqlClient;
using MSI.Emailing;
using MSI.Logging;
using AttendenceManagement.Business_Layer;

namespace AttendenceManagement.Controls
{
    public partial class AttendenceDetailsGrid : System.Web.UI.UserControl
    {
        #region Properties Declarations
        /// <summary>
        /// Business Layer Objects Declared to Reterive or Save Data To DataBase.
        /// </summary>
        AttendenceDetailsDAO objAttendenceDetailsDAO = new AttendenceDetailsDAO();
        AttendenceDetailsEntities objAttendenceDetailsEntities = new AttendenceDetailsEntities();
        AttendenceDAO objAttendenceDAO = new AttendenceDAO();
        AttendenceEntities objAttendenceEntities = new AttendenceEntities();
        LoggingClass objLogging = new LoggingClass();
        Emailclass objEmailclass = new Emailclass();
        DataSet dsDetails = new DataSet();
        string strEmployeeId;
        #endregion

        #region Events
        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                rdpFrom.MaxDate = DateTime.Now.AddDays(-1);
                rbClose.Image.IsBackgroundImage = true;
                rbClose.Image.ImageUrl = "~/CSS/TelerikCustomSkins/Grid/cancelbtn.png";

                if (!IsPostBack)
                {
                    rdpFrom.SelectedDate = DateTime.Now.AddMonths(-1);

                }
                LoadAttendenceGrid(true);
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Click Event to Select and Load Employee Attendence Details.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void rbtnSelect_Click(object sender, EventArgs e)
        {
            try
            {
                LoadAttendenceGrid(true);
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }
        /// <summary>
        ///Attendence Grid ItemCommnad Event Fired to Load AttendenceDetailsPopup for a Particular Date of an Employee.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void rgAttendenceDetails_ItemCommand(object sender, GridCommandEventArgs e)
        {
            try
            {
                rtbxComments.Text = string.Empty;
                string strMSIID;
                DateTime dtDate;
                if (e.CommandName == "AttendenceCheck")
                {
                    if (e.Item is GridDataItem)
                    {
                        GridDataItem item = (GridDataItem)e.Item;

                        strMSIID = item["Emp_ID"].Text;
                        CommonDAO objCommonDao = new CommonDAO();
                        DataSet dsUserDetails = objCommonDao.GetUserDetails(strMSIID);
                        if (dsUserDetails != null)
                        {
                            if (dsUserDetails.Tables.Count > 0)
                            {
                                if (dsUserDetails.Tables[0].Rows.Count > 0)
                                {
                                    lblEmployeeNameValue.Text = (string)dsUserDetails.Tables[0].Rows[0]["Employee_Name"];
                                }
                            }
                        }
                        lblEmployeeIdValue.Text = strMSIID;
                        dtDate = Convert.ToDateTime(e.CommandArgument.ToString());
                        lblDateValue.Text = dtDate.ToString("dd-MM-yyyy");
                        rwdAttendenceDetails.VisibleOnPageLoad = true;
                        objAttendenceDetailsEntities.EmployeeId = "0" + strMSIID; //Concatenating EmployeeId with 0 as defined in Database.
                        objAttendenceDetailsEntities.Date = dtDate;
                        Session["MSIId"] = strMSIID;
                        Session["Date"] = dtDate;
                        rcbxType.SelectedValue = "0";
                        LoadAttendenceGridPopUp();
                        LoadAttendenceGrid(false);

                        if (Session["AttendencePage"] != null)
                        {
                            if (Session["AttendencePage"].ToString() == "Attendence")
                            {
                                lblEmployeeNameValue.Enabled = false;
                                lblEmployeeIdValue.Enabled = false;
                                lblDateValue.Enabled = false;
                                rgMyAttendenceDetails.Enabled = false;
                                rtbxComments.Enabled = false;
                                rcbxType.Enabled = false;
                                objAttendenceEntities.MSIId = Session["MSIId"].ToString();
                                objAttendenceEntities.AttDate = Convert.ToDateTime(Session["Date"]);
                                DataSet dsAttType = new DataSet();
                                dsAttType = objAttendenceDAO.GetAttendenceType(objAttendenceEntities);
                                if (dsAttType != null)
                                {
                                    if (dsAttType.Tables.Count > 0)
                                    {
                                        if (dsAttType.Tables[0].Rows.Count > 0)
                                        {
                                            string strTypeName = (string)dsAttType.Tables[0].Rows[0]["Att_Type"];
                                            objAttendenceEntities.TypeName = strTypeName;
                                            DataSet dsTypeId = new DataSet();
                                            dsTypeId = objAttendenceDAO.GetTypeId(objAttendenceEntities);
                                            if (dsTypeId != null)
                                            {
                                                if (dsTypeId.Tables.Count > 0)
                                                {
                                                    if (dsTypeId.Tables[0].Rows.Count > 0)
                                                    {
                                                        rcbxType.SelectedValue = (string)dsTypeId.Tables[0].Rows[0]["TypeId"];
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Attendence Grid ItemDataBound Event Fired to set the Backcolor of the Control present in a Particular Cell of the Grid.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void rgAttendenceDetails_ItemDataBound(object sender, GridItemEventArgs e)
        {
            try
            {
                //Not Header row
                if (e.Item.RowIndex > 0)
                {
                    for (int i = 1; i < e.Item.Cells.Count; i++)
                    {
                        if (e.Item.Cells[i].Controls.Count > 0)
                        {
                            LiteralControl lbl = (LiteralControl)e.Item.Cells[i].Controls[1];
                            LinkButton lnk = (LinkButton)e.Item.Cells[i].Controls[0];
                            if (lbl != null && lnk != null)
                            {
                                AttendenceDetailsDAO.AttendenceType objAttendenceType = AttendenceDetailsDAO.GetValueFromDescription(lbl.Text);
                                if (default(AttendenceDetailsDAO.AttendenceType) != objAttendenceType && objAttendenceType != AttendenceDetailsDAO.AttendenceType.Absent && objAttendenceType != AttendenceDetailsDAO.AttendenceType.HalfDayAbsent)
                                {
                                    lnk.Visible = false;
                                    e.Item.Cells[i].BackColor = AttendenceDetailsDAO.GetBackGroundColor(objAttendenceType);
                                }
                                else
                                {
                                    lbl.Visible = false;
                                    e.Item.Cells[i].BackColor = AttendenceDetailsDAO.GetBackGroundColor(objAttendenceType);
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Click Event to Save the Status of the Employee For a Particular Date Selected for an Employee from the Attendence Details to DB.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void rbOk_Click(object sender, EventArgs e)
        {
            try
            {
                objAttendenceEntities.MSIId = Session["MSIId"].ToString();
                objAttendenceEntities.AttDate = Convert.ToDateTime(Session["Date"]);
                objAttendenceEntities.CodeValue = rcbxType.Text;
                DataSet dsCodeId = new DataSet();
                dsCodeId = objAttendenceDAO.GetCodeId(objAttendenceEntities);
                if (dsCodeId != null && dsCodeId.Tables.Count > 0 && dsCodeId.Tables[0].Rows.Count > 0)
                {
                    foreach (DataRow row in dsCodeId.Tables[0].Rows)
                    {
                        objAttendenceEntities.AttTypeId = int.Parse(row["Code_ID"].ToString());
                    }
                }
                objAttendenceEntities.Comments = rtbxComments.Text;
                objAttendenceEntities.CreatedUserId = UserDetails.User.EmployeeId;
                objAttendenceDAO.SaveAttendenceDetails(objAttendenceEntities);


                if (rcbxType.Text == "Work From Home")
                {
                    string strLeadEmail = string.Empty;
                    for (int i = 0; i < UserDetails.Leads.Count; i++)
                    {
                        strLeadEmail += UserDetails.Leads[i].Lead_Email + ",";
                    }
                    if (strLeadEmail != string.Empty)
                    {
                        strLeadEmail = strLeadEmail.Substring(0, strLeadEmail.Length - 1);
                    }
                    objEmailclass.SendMailMessage(strLeadEmail, null, "Test", "Testing");
                }
                else
                {
                    string strAdminEmail = string.Empty;
                    strAdminEmail = UserDetails.Admin.Admin_Email_Id;
                    objEmailclass.SendMailMessage(strAdminEmail, null, "Test", "Testing");
                }

                if (rcbxType.Text == "Swipe Error")
                {
                    objAttendenceEntities.LastChangedUserId = UserDetails.User.EmployeeId;
                    objAttendenceDAO.UpdateAttendenceDetails(objAttendenceEntities);
                }

                LoadAttendenceGrid(true);
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Click Event By Admin or Leads to Approve the Status of a Particular Date Attendence of a Employee.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void rbApprove_Click(object sender, EventArgs e)
        {
            try
            {
                objAttendenceEntities.MSIId = Session["MSIId"].ToString();
                objAttendenceEntities.AttDate = Convert.ToDateTime(Session["Date"]);
                objAttendenceEntities.LastChangedUserId = UserDetails.User.EmployeeId;
                objAttendenceDAO.UpdateAttendenceIsApproved(objAttendenceEntities);

                string strUserEmailId;
                CommonDAO objCommonDao = new CommonDAO();
                DataSet dsUserDetails = objCommonDao.GetUserDetails(Session["MSIId"].ToString());
                if (dsUserDetails != null)
                {
                    if (dsUserDetails.Tables.Count > 0)
                    {
                        if (dsUserDetails.Tables[0].Rows.Count > 0)
                        {
                            strUserEmailId = (string)dsUserDetails.Tables[0].Rows[0]["Email_Id"];
                            objEmailclass.SendMailMessage(strUserEmailId, null, "Test", "Approved");
                        }
                    }
                }

                LoadAttendenceGrid(true);
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Click Event By Admin or Leads to Reject the Status of a Particular Date Attendence of a Employee.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void rbReject_Click(object sender, EventArgs e)
        {
            try
            {
                objAttendenceEntities.MSIId = Session["MSIId"].ToString();
                objAttendenceEntities.AttDate = Convert.ToDateTime(Session["Date"]);
                objAttendenceEntities.LastChangedUserId = UserDetails.User.EmployeeId;
                objAttendenceDAO.UpdateAttendenceIsApproved(objAttendenceEntities);

                string strUserEmailId;
                CommonDAO objCommonDao = new CommonDAO();
                DataSet dsUserDetails = objCommonDao.GetUserDetails(Session["MSIId"].ToString());
                if (dsUserDetails != null)
                {
                    if (dsUserDetails.Tables.Count > 0)
                    {
                        if (dsUserDetails.Tables[0].Rows.Count > 0)
                        {
                            strUserEmailId = (string)dsUserDetails.Tables[0].Rows[0]["Email_Id"];
                            objEmailclass.SendMailMessage(strUserEmailId, null, "Test", "Rejected");
                        }
                    }
                }

                LoadAttendenceGrid(true);
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        protected void rgMyAttendenceDetails_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
        {
            try
            {
                rgMyAttendenceDetails.DataSource = new int[] { };
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }


        #endregion

        #region Methods
        /// <summary>
        /// Method to Load the Attendence Details Grid for a Select no of Employees.
        /// </summary>
        /// <param name="forceLoad"></param>
        private void LoadAttendenceGrid(bool forceLoad)
        {
            try
            {
                strEmployeeId = GetSelectedEmployees();
                objAttendenceDetailsEntities = new AttendenceDetailsEntities();
                rgAttendenceDetails.Columns.Clear();
                lblFromdatewithyear.Text = rdpFrom.SelectedDate.Value.Date.ToShortDateString();
                lblTodatewithyear.Text = rdpFrom.SelectedDate.Value.AddMonths(1).AddDays(-1).Date.ToShortDateString();
                if (Session["HomePage"] != null)
                {
                    if (Session["HomePage"].ToString() == "Home")
                    {
                        objAttendenceDetailsEntities.EmployeeId = UserDetails.User.MSIId;
                    }
                }

                else if (strEmployeeId != string.Empty)
                {
                    objAttendenceDetailsEntities.EmployeeId = strEmployeeId;
                }
                if (objAttendenceDetailsEntities.EmployeeId != null)
                {

                    objAttendenceDetailsEntities.FromDate = Convert.ToDateTime(rdpFrom.SelectedDate);
                    objAttendenceDetailsEntities.ToDate = Convert.ToDateTime(rdpFrom.SelectedDate.Value.AddMonths(1).AddDays(-1));

                    string[] strEmplId = objAttendenceDetailsEntities.EmployeeId.Split(',');

                    DataTable dtEmplyees = new DataTable();

                    //If it needs to be loaded again from database
                    if (forceLoad == true)
                    {
                        Session["AttData"] = objAttendenceDetailsDAO.GetFullAttendenceDetails(objAttendenceDetailsEntities);
                    }

                    dtEmplyees = (DataTable)Session["AttData"];
                    if (dtEmplyees != null)
                    {
                        dtEmplyees.DefaultView.Sort = "Att_Date";
                    }
                    rgAttendenceDetails.AutoGenerateColumns = false;
                    rgAttendenceDetails.MasterTableView.AutoGenerateColumns = false;

                    DataTable dtAttendence = new DataTable();
                    DataColumn dc = new DataColumn();
                    DataColumn dcCol2 = new DataColumn();
                    GridBoundColumn boundColumn = new GridBoundColumn();

                    GridTemplateColumn clNew;

                    for (int iLength = 0; iLength < strEmplId.Length; iLength++)
                    {
                        DataRow[] dr = dtEmplyees.Select("Emp_ID='" + strEmplId[iLength] + "'", "Att_Date");

                        if (dr.Length > 0)
                        {

                            DataRow drRow = dtAttendence.NewRow();

                            if (dr.Length + 1 != dtAttendence.Columns.Count)
                            {
                                boundColumn = new GridBoundColumn();
                                boundColumn.HeaderText = "Employee Id";
                                boundColumn.DataField = "Emp_ID";
                                boundColumn.UniqueName = "Emp_ID";
                                dc.ColumnName = "Emp_ID";
                                dtAttendence.Columns.Add(dc);
                                rgAttendenceDetails.MasterTableView.Columns.Add(boundColumn);
                            }

                            //To bind EmployeeId without 0 as the first Character.
                            if (strEmplId[iLength].StartsWith("0"))
                            {
                                drRow[dc.ColumnName] = strEmplId[iLength].Substring(1);
                            }
                            else
                            {
                                drRow[dc.ColumnName] = strEmplId[iLength];
                            }
                            for (int i = 0; i < dr.Length; i++)
                            {
                                if (dr.Length + 1 != dtAttendence.Columns.Count)
                                {
                                    dcCol2 = new DataColumn();
                                    dtAttendence.Columns.Add(dcCol2);
                                    dcCol2.ColumnName = dr[i]["Att_Date"].ToString();
                                }

                                //AttendenceDetailsDAO.AttendenceType objAttendanceType = (AttendenceDetailsDAO.AttendenceType)Enum.Parse(typeof(AttendenceDetailsDAO.AttendenceType), dr[i]["Status"].ToString());
                                AttendenceDetailsDAO.AttendenceType objAttendanceType = AttendenceDetailsDAO.GetValueFromDescription(dr[i]["Status"].ToString());

                                clNew = new GridTemplateColumn();
                                clNew.HeaderText = dr[i]["Day"].ToString();
                                string strcolName = dcCol2.ColumnName;
                                clNew.ItemTemplate = new MyTemplate(strcolName, ListItemType.Item, dr[i]["Att_Date"].ToString());
                                clNew.UniqueName = dcCol2.ColumnName;
                                clNew.DataField = dcCol2.ColumnName;
                                clNew.ItemStyle.ForeColor = Color.Blue;

                                if (dr.Length != rgAttendenceDetails.Columns.Count - 1)
                                {
                                    rgAttendenceDetails.MasterTableView.Columns.Add(clNew);
                                }
                                drRow[dr[i]["Att_Date"].ToString()] = AttendenceDetailsDAO.GetEnumDescription(objAttendanceType);

                            }
                            dtAttendence.Rows.Add(drRow);
                        }
                    }
                    //If there is no rows then
                    if (dtAttendence.Rows.Count > 0)
                    {
                        rgAttendenceDetails.DataSource = dtAttendence;
                        rgAttendenceDetails.DataBind();
                        rgAttendenceDetails.Visible = true;
                    }
                }
                else
                {
                    rgAttendenceDetails.DataSource = new int[] { };
                    rgAttendenceDetails.DataBind();
                    rgAttendenceDetails.Visible = false;
                }
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Method to Select Employees from the Employee RadCombobox.
        /// </summary>
        /// <returns></returns>
        private string GetSelectedEmployees()
        {

            try
            {
                string EmpIds = string.Empty;

                foreach (RadComboBoxItem item in rcbxEmployee.CheckedItems)
                {
                    EmpIds += item.Text + ",";

                }
                if (EmpIds != string.Empty)
                {
                    EmpIds = EmpIds.Substring(0, EmpIds.Length - 1);
                }

                return EmpIds;
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Method To Load Type into RadCombobox from DB Present in the AttendenceDetailsPopup.
        /// </summary>
        private void LoadRadCmboxType()
        {
            try
            {
                dsDetails = objAttendenceDetailsDAO.GetTypes();
                rcbxType.DataSource = dsDetails;
                foreach (DataRow dr in dsDetails.Tables[0].Rows)
                {
                    rcbxType.DataTextField = "TypeName";
                    rcbxType.DataValueField = "TypeId";
                }
                rcbxType.DataBind();
                rcbxType.Items.Insert(0, new RadComboBoxItem(string.Empty));//Adding a Empty Item to the dropdown.
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }

        /// <summary>
        /// Method To Load The MyAttendenceDetails grid Present in the AttendenceDetailsPopup.
        /// </summary>
        private void LoadAttendenceGridPopUp()
        {
            try
            {

                DataSet AttdataSet = new DataSet();
                AttdataSet = objAttendenceDetailsDAO.GetAttPunchedInandOutDtls(objAttendenceDetailsEntities);
                DataTable dtAttendence = new DataTable();
                DataRow drAttendence = null;

                dtAttendence.Columns.Add("PunchIn", typeof(string));
                dtAttendence.Columns.Add("PunchOut", typeof(string));
                dtAttendence.Columns.Add("PunchIn2", typeof(string));
                dtAttendence.Columns.Add("PunchOut2", typeof(string));
                dtAttendence.Columns.Add("PunchIn3", typeof(string));
                dtAttendence.Columns.Add("PunchOut3", typeof(string));
                dtAttendence.Columns.Add("PunchIn4", typeof(string));
                dtAttendence.Columns.Add("PunchOut4", typeof(string));

                drAttendence = dtAttendence.NewRow();
                if (AttdataSet != null && AttdataSet.Tables.Count > 0 && AttdataSet.Tables[0].Rows.Count > 0)
                {

                    if (AttdataSet.Tables[0].Rows.Count > 0)
                    {
                        drAttendence["PunchIn"] = AttdataSet.Tables[0].Rows[0]["Punch_In"].ToString().Remove(5);
                        drAttendence["PunchOut"] = AttdataSet.Tables[0].Rows[0]["Punch_Out"].ToString().Remove(5);
                    }
                    else if (AttdataSet.Tables[0].Rows.Count > 1)
                    {
                        drAttendence["PunchIn2"] = AttdataSet.Tables[0].Rows[1]["Punch_In"].ToString().Remove(5);
                        drAttendence["PunchOut2"] = AttdataSet.Tables[0].Rows[1]["Punch_Out"].ToString().Remove(5);
                    }
                    else if (AttdataSet.Tables[0].Rows.Count > 2)
                    {
                        drAttendence["PunchIn3"] = AttdataSet.Tables[0].Rows[2]["Punch_In"].ToString().Remove(5);
                        drAttendence["PunchOut3"] = AttdataSet.Tables[0].Rows[2]["Punch_Out"].ToString().Remove(5);
                    }
                    else if (AttdataSet.Tables[0].Rows.Count > 3)
                    {
                        drAttendence["PunchIn4"] = AttdataSet.Tables[0].Rows[3]["Punch_In"].ToString().Remove(5);
                        drAttendence["PunchOut4"] = AttdataSet.Tables[0].Rows[3]["Punch_Out"].ToString().Remove(5);
                    }
                    dtAttendence.Rows.Add(drAttendence);
                }
                if (dtAttendence.Rows.Count > 0)
                {
                    rgMyAttendenceDetails.DataSource = dtAttendence;
                    rgMyAttendenceDetails.DataBind();
                }
                else
                {
                    rgMyAttendenceDetails.DataSource = new int[] { };
                    rgMyAttendenceDetails.DataBind();
                }
                LoadRadCmboxType();
            }
            catch (Exception ex)
            {
                objLogging.WriteToErrorLog(ex.Message);
                throw ex;
            }
        }
        #endregion

        #region Template Declarations
        /// <summary>
        /// RadGrid Template Class
        /// </summary>
        private class MyTemplate : ITemplate, IBindableTemplate
        {
            protected LinkButton lnkButton;
            protected LiteralControl lControl;
            private string colname;
            private ListItemType lstItemType;
            private string controlId;
            private string literalId;
            private string lnkbuttonId;
            private string commandArgument;
            public MyTemplate(string CName, ListItemType type, string commandArgument)
            {
                this.colname = CName;
                this.lstItemType = type;
                literalId = "lbl_" + type.ToString() + "_" + CName;
                lnkbuttonId = "lnk_" + type.ToString() + "_" + CName;
                this.commandArgument = commandArgument;
            }

            public void InstantiateIn(System.Web.UI.Control container)
            {
                switch (lstItemType)
                {
                    case ListItemType.Item:

                        lnkButton = new LinkButton();
                        controlId = "lnk_" + colname;
                        lnkButton.ID = controlId;
                        lnkButton.CommandName = "AttendenceCheck";
                        lnkButton.CommandArgument = commandArgument;
                        lnkButton.DataBinding += new EventHandler(lnkButton_DataBinding);
                        // lnkButton.Click += new EventHandler(lnkButton_Click);
                        container.Controls.Add(lnkButton);

                        lControl = new LiteralControl();
                        controlId = "lbl_" + colname;
                        lControl.ID = controlId;
                        lControl.DataBinding += new EventHandler(lControl_DataBinding);
                        container.Controls.Add(lControl);

                        break;
                }
            }

            public void lnkButton_DataBinding(object sender, EventArgs e)
            {
                LinkButton lnk = (LinkButton)sender;
                GridDataItem container = (GridDataItem)lnk.NamingContainer;
                lnk.Text = ((DataRowView)container.DataItem)[colname].ToString();
            }

            public void lControl_DataBinding(object sender, EventArgs e)
            {
                LiteralControl ltlControl = (LiteralControl)sender;
                GridDataItem container = (GridDataItem)ltlControl.NamingContainer;
                ltlControl.Text = ((DataRowView)container.DataItem)[colname].ToString();
            }

            public System.Collections.Specialized.IOrderedDictionary ExtractValues(System.Web.UI.Control container)
            {
                OrderedDictionary od = new OrderedDictionary();

                od.Add("ProviderName", ((LinkButton)((GridDataItem)container).FindControl(controlId)).Text);

                return od;
            }
        }
        #endregion
    }
}

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="AttendenceDetails.ascx.cs"
    Inherits="AttendenceManagement.Controls.AttendenceDetailsGrid" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<link href="../CSS/AttendenceStyle.css" rel="stylesheet" type="text/css" />
<link href="../CSS/TelerikCustomSkins/Grid.css" rel="stylesheet" type="text/css" />

<script language="javascript" type="text/javascript">

    //    function getRadWindow() {
    //        var oWindow = null;
    //        if (window.radWindow) oWindow = window.radWindow;
    //        else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow;
    //        return oWindow;
    //    }

    //    function closeWindow() {
    //        getRadWindow().close();
    //    }

    function OnClientClicked(sender, args) {
        var window = $find('<%=rwdAttendenceDetails.ClientID %>');
        window.close();
    }

</script>

<telerik:RadWindowManager ID="rwmAttendenceDetails" runat="server" ShowContentDuringLoad="false"
    VisibleStatusbar="false" Modal="true" VisibleTitlebar="false" EnableViewState="false"
    EnableEmbeddedSkins="false">
    <Windows>
        <telerik:RadWindow ID="rwdAttendenceDetails" runat="server" ShowContentDuringLoad="true"
            VisibleStatusbar="false" Modal="true" VisibleTitlebar="false" VisibleOnPageLoad="false"
            BorderWidth="0" BorderStyle="None" Height="400px" Width="700px">
            <ContentTemplate>
                <div style="width: 676px; height: 376px; background-color: #323367; vertical-align: top;
                    margin-top: 0px !important; border: 4px solid skyblue;">
                    <div class="divClose">
                        <telerik:RadButton ID="rbClose" runat="server" Height="17px" Width="20px" AutoPostBack="false"
                            OnClientClicked="OnClientClicked">
                        </telerik:RadButton>
                    </div>
                    <div class="divlblAttendenceDetails">
                        <asp:Label ID="lblAttendenceDetails" runat="server" Text="My Attendence Details"
                            ForeColor="White"></asp:Label>
                    </div>
                    <div class="divEmplyeeDetail">
                        <asp:Label ID="lblEmployeeName" runat="server" Text="Employee Name :" ForeColor="White"></asp:Label>
                        <asp:Label ID="lblEmployeeNameValue" runat="server" CssClass="rtxtEmployeeNameStyle"
                            ForeColor="White">
                        </asp:Label>
                        <asp:Label ID="lblEmployeeId" runat="server" Text="Empolyee Id :" CssClass="lblEmployeeIdStyle"
                            ForeColor="White"></asp:Label>
                        <asp:Label ID="lblEmployeeIdValue" runat="server" CssClass="lblEmployeeIdValueStyle"
                            ForeColor="White"></asp:Label>
                        <asp:Label ID="lblDate" runat="server" Text="Date :" CssClass="lblDateStyle" ForeColor="White"></asp:Label>
                        <asp:Label ID="lblDateValue" runat="server" CssClass="rtbxDateStyle" ForeColor="White">
                        </asp:Label>
                    </div>
                    <div class="divGrid">
                        <telerik:RadGrid ID="rgMyAttendenceDetails" runat="server" GridLines="None" AutoGenerateColumns="false"
                            ShowHeader="true" ShowFooter="true" EnableEmbeddedSkins="false" OnNeedDataSource="rgMyAttendenceDetails_NeedDataSource"
                            Skin="Internal" CssClass="RadGridStyle">
                            <HeaderStyle VerticalAlign="Middle" HorizontalAlign="Center" CssClass="RadGridStyle" />
                            <MasterTableView AutoGenerateColumns="false" EnableNoRecordsTemplate="true" ShowHeadersWhenNoRecords="true"
                                ShowHeader="true" ShowFooter="true" CssClass="RadGridStyle">
                                <Columns>
                                    <telerik:GridBoundColumn HeaderText="PunchIn" DataField="PunchIn">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchOut" DataField="PunchOut">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchIn2" DataField="PunchIn2">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchOut2" DataField="PunchOut2">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchIn3" DataField="PunchIn3">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchOut3" DataField="PunchOut3">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchIn4" DataField="PunchIn4">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn HeaderText="PunchOut4" DataField="PunchOut4">
                                    </telerik:GridBoundColumn>
                                </Columns>
                                <NoRecordsTemplate>
                                    <div>
                                        <asp:Literal ID="ltlNoRecords" runat="server" Text="No Swipe Details Available"></asp:Literal>
                                    </div>
                                </NoRecordsTemplate>
                            </MasterTableView>
                        </telerik:RadGrid></div>
                    <asp:Label ID="lblDetails" runat="server" Visible="True"></asp:Label>
                    <div class="divComments">
                        <asp:Label ID="lblComments" runat="server" Text="Comments" Visible="true" ForeColor="White"></asp:Label>
                        <telerik:RadTextBox ID="rtbxComments" runat="server" Width="350px" Height="50px"
                            TextMode="MultiLine" MaxLength="300" CssClass="rtbxCommentsStyle" Visible="true">
                        </telerik:RadTextBox>
                    </div>
                    <div class="divType">
                        <asp:Label ID="lblType" runat="server" Text="Type" Visible="true" ForeColor="White"></asp:Label>
                        <telerik:RadComboBox ID="rcbxType" runat="server" CssClass="rcbxTypeStyle" Visible="true"
                            AutoPostBack="false" Width="125px">
                        </telerik:RadComboBox>
                    </div>
                    <asp:Panel ID="pnlOkCancel" runat="server" Visible="false" Style="float: left;">
                        <div class="divbtn">
                            <asp:Button ID="rbOk" runat="server" Text="Ok" Width="75px" OnClick="rbOk_Click">
                            </asp:Button>
                            <asp:Button ID="rbCancel" runat="server" Text="Cancel" Width="75px" OnClientClick="OnClientClicked();return false;">
                            </asp:Button>
                        </div>
                    </asp:Panel>
                    <asp:Panel ID="pnlAcceptReject" Visible="false" runat="server">
                        <div class="divbtn">
                            <asp:Button ID="rbApprove" runat="server" Text="Approve" Width="75px" OnClick="rbApprove_Click">
                            </asp:Button>
                            <asp:Button ID="rbReject" runat="server" Text="Reject" Width="75px" OnClick="rbReject_Click">
                            </asp:Button>
                        </div>
                    </asp:Panel>
                </div>
            </ContentTemplate>
        </telerik:RadWindow>
    </Windows>
</telerik:RadWindowManager>
<div class="divlblHeader">
    <asp:Label ID="lblHeader" runat="server" Text="Attendence Details"></asp:Label></div>
<asp:Panel runat="server" ID="pnlout" BackColor="#D8D8D8" Height="80px">
    <div class="divPickerLabel">
        <div class="divPicker">
            <div class="divFromDate">
                <asp:Label ID="lblFromDate" runat="server" Text="From"></asp:Label>
                <telerik:RadDatePicker ID="rdpFrom" runat="server" CssClass="rtxtFromStyle" Width="125px">
                </telerik:RadDatePicker>
            </div>
            <asp:Panel ID="pnlEmployee" runat="server" Style="float: left;">
                <div class="divSelectEmployee">
                    <asp:Label ID="lblSelectEmployee" runat="server" Text="Select Employee"></asp:Label>
                    <telerik:RadComboBox ID="rcbxEmployee" runat="server" CssClass="rcbxEmployeeStyle"
                        Visible="true" Width="125px" CheckBoxes="true" EnableCheckAllItemsCheckBox="true">
                    </telerik:RadComboBox>
                </div>
            </asp:Panel>
            <div class="divbtnSelect">
                <asp:Button ID="rbtnSelect" runat="server" Text="Select" OnClick="rbtnSelect_Click"
                    CssClass="rbtnSelectStyle" Width="75px"></asp:Button>
            </div>
        </div>
    </div>
    <div class="divfromdatetodatelbl">
        <div class="divlblfromdatetodate">
            <div class="divDummy">
            </div>
            <asp:Label ID="lblAttendenceDetaisFrom" runat="server" Text="Attendence Details From"></asp:Label>
            <asp:Label ID="lblFromdatewithyear" runat="server"></asp:Label>
            <asp:Label ID="lblTo" runat="server" Text="To"></asp:Label>
            <asp:Label ID="lblTodatewithyear" runat="server"></asp:Label></div>
    </div>
</asp:Panel>
<div class="divlegend">
    <asp:Panel ID="pnllegend" runat="server" BackColor="Gray" Height="95px">
        <table runat="server" cellpadding="0" cellspacing="0">
            <tr>
                <td style="width: 11%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: White; height: 20px; text-align: center; width: 20px;
                        float: left;">
                        <span>P</span>
                    </div>
                    <div>
                        <asp:Label ID="lblPresent" runat="server" Text="Present" CssClass="lblLegendStyle"
                            ForeColor="White"></asp:Label></div>
                </td>
                <td style="width: 12%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Red; height: 20px; text-align: center; width: 20px;
                        float: left;">
                        <span>A</span>
                    </div>
                    <div>
                        <asp:Label ID="lblAbsent" runat="server" Text="Absent" CssClass="lblLegendStyle"
                            ForeColor="White"></asp:Label></div>
                </td>
                <td style="width: 14%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: PowderBlue; height: 20px; text-align: center; width: 20px;
                        float: left;">
                        <span>H</span>
                    </div>
                    <div>
                        <asp:Label ID="lblHoilday" runat="server" Text="Holiday" CssClass="lblLegendStyle"
                            ForeColor="White"></asp:Label></div>
                </td>
                <td style="width: 20%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Plum; height: 20px; text-align: center; width: 25px;
                        float: left;">
                        <span>RH</span>
                    </div>
                    <div>
                        <asp:Label ID="lblResHoliday" runat="server" Text="Restricted Holiday" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
                <td style="width: 19%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Aquamarine; height: 20px; text-align: center; width: 25px;
                        float: left;">
                        <span>HL</span>
                    </div>
                    <div>
                        <asp:Label ID="lblHDLeave" runat="server" Text="Half Day Leave" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
                <td colspan="2" style="width: 100%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Aqua; height: 20px; text-align: center; width: 25px;
                        float: left;">
                        <span>SR</span>
                    </div>
                    <div>
                        <asp:Label ID="lblSwipeError" runat="server" Text="Swipe Error" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
            </tr>
            <tr>
                <td style="width: 10%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Blue; height: 20px; text-align: center; width: 20px;
                        float: left;">
                        <span>L</span>
                    </div>
                    <div>
                        <asp:Label ID="lblLeave" runat="server" Text="Leave" CssClass="lblLegendStyle" ForeColor="White"></asp:Label></div>
                </td>
                <td style="width: 12%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Peru; height: 20px; text-align: center; width: 20px;
                        float: left;">
                        <span>C</span>
                    </div>
                    <div>
                        <asp:Label ID="lblCompoff" runat="server" Text="CompOff" CssClass="lblLegendStyle"
                            ForeColor="White"></asp:Label></div>
                </td>
                <td style="width: 15%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Green; height: 20px; text-align: center; width: 20px;
                        float: left;">
                        <span>T</span>
                    </div>
                    <div>
                        <asp:Label ID="lblTemporaryId" runat="server" Text="TemporaryId" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
                <td style="width: 20%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Yellow; height: 20px; text-align: center; width: 26px;
                        float: left;">
                        <span>WH</span>
                    </div>
                    <div>
                        <asp:Label ID="lblWorkFromHome" runat="server" Text="Work From Home" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
                <td style="width: 19%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Tan; height: 20px; text-align: center; width: 25px;
                        float: left;">
                        <span>HA</span>
                    </div>
                    <div>
                        <asp:Label ID="lblHDAbsent" runat="server" Text="Half Day Absent" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
                <td colspan="2" style="width: 100%; padding: 15px 0px 0px 20px;">
                    <div style="background-color: Fuchsia; height: 20px; text-align: center; width: 25px;
                        float: left;">
                        <span>AP</span>
                    </div>
                    <div>
                        <asp:Label ID="lblApproval" runat="server" Text="Approval Needed" CssClass="lblLegendStyle"
                            ForeColor="White">
                        </asp:Label></div>
                </td>
            </tr>
        </table>
    </asp:Panel>
</div>
<div class="divrGrid">
    <telerik:RadGrid ID="rgAttendenceDetails" runat="server" AllowSorting="true" AllowPaging="true"
        PagerStyle-ShowPagerText="true" PagerStyle-AlwaysVisible="true" AutoGenerateColumns="false"
        SortingSettings-EnableSkinSortStyles="false" EnableEmbeddedSkins="false" CellSpacing="0"
        Skin="Internal" GridLines="Both" CssClass="rgLeaveApproval" OnItemCommand="rgAttendenceDetails_ItemCommand"
        OnItemDataBound="rgAttendenceDetails_ItemDataBound" >
        <MasterTableView AutoGenerateColumns="false" EnableNoRecordsTemplate="true" ShowHeadersWhenNoRecords="true"
            ShowHeader="true" ShowFooter="true">
            <HeaderStyle VerticalAlign="Middle" HorizontalAlign="Center" />
            <PagerStyle Mode="NextPrevAndNumeric"></PagerStyle>
            <NoRecordsTemplate>
                <div>
                    <asp:Literal ID="ltlNoRecords" runat="server" Text="No Records To Display"></asp:Literal>
                </div>
            </NoRecordsTemplate>
        </MasterTableView>
    </telerik:RadGrid>
</div>

[Antonio Stoilkov]

Hi Naveen,

You could resolve your issue by creating the RadGrid control in the Page_Init method. As described in the help article below - Creating columns in the Page_Load event handler does not work for template columns. For the controls inside a template to persist their ViewState, the grid must be generated completely in the code-behind using the Page_Init event (see below). That way, template controls are instantiated before the LoadViewState event of the page.

• Programmatic Creation

Regards,
Antonio Stoilkov
the Telerik team