[Solved] persist the state of checked record on clientside(for single/multiple/header check)during paging,pagesize change

[Swapnil]

Hi all,
I want To persist the state of checked record on clientside(for single/multiple/header check)during paging,pagesize change and get the USERID associated with such records on button click?
i did it for server side please check it

<%@ Page Title="" Language="C#" MasterPageFile="~/ReportAdmin.Master" AutoEventWireup="true"
    CodeFile="GroupUserCreation.aspx.cs" Inherits="GroupUserCreation" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <br />
    <center>
        <telerik:RadComboBox ID="cmbgroupname" runat="server" Width="250px" EmptyMessage="             Select Group"
            ExpandAnimation-Type="OutBounce" Skin="Default">
        </telerik:RadComboBox>
        <asp:RequiredFieldValidator ID="rfv1" runat="server" ErrorMessage="*" Font-Size="Larger"
            SetFocusOnError="true" ValidationGroup="val" ControlToValidate="cmbgroupname"
            Font-Bold="true" ForeColor="Red"></asp:RequiredFieldValidator>
        <br />
        <br />
        <div>
        </div>
        <telerik:RadGrid ID="RadGrid1" runat="server" AllowMultiRowSelection="True" AllowPaging="True"
            PageSize="5" AllowSorting="True" OnNeedDataSource="RadGrid1_NeedDataSource" CellSpacing="0"
            GridLines="None" ShowGroupPanel="True" Skin="Default" OnItemCommand="RadGrid1_ItemCommand"
            OnPreRender="RadGrid1_PreRender">
            <PagerStyle Mode="NextPrevAndNumeric" AlwaysVisible="true"></PagerStyle>
            <ClientSettings Selecting-AllowRowSelect="true" AllowDragToGroup="True" EnablePostBackOnRowClick="true">
                <Selecting AllowRowSelect="True" UseClientSelectColumnOnly="True"></Selecting>
            </ClientSettings>
            <MasterTableView DataKeyNames="UserId">
                <Columns>
                    <telerik:GridClientSelectColumn UniqueName="ClientSelectColumn" />
                </Columns>
                <PagerStyle AlwaysVisible="True"></PagerStyle>
            </MasterTableView>
        </telerik:RadGrid>
        <br />
        <asp:Button ID="Button1" runat="server" Text="Save" OnClick="Button1_Click" Width="130px"
            Height="25px" ValidationGroup="val" />
        <br />
    </center>
</asp:Content>

and

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using Telerik.Web.UI;
using System.Collections;


public partial class GroupUserCreation : System.Web.UI.Page
{
    Globas obj = new Globas();
    CheckBox chkbox = new CheckBox();
    string GroupId="";


    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {

            Session.Clear();
            DataTable dt1 = obj.GroupDetails();
            cmbgroupname.DataSource = dt1;
            cmbgroupname.DataTextField = "GroupName";
            cmbgroupname.DataValueField = "GroupId";
            cmbgroupname.DataBind();
        }

        foreach (GridHeaderItem headerItem in RadGrid1.MasterTableView.GetItems(GridItemType.Header))
        {
            CheckBox chk = (CheckBox)headerItem.FindControl("ClientSelectColumn");
        }


    }

    protected void Button1_Click(object sender, EventArgs e)
    {

        if (Session["selectedItems"] != null)
    {
        ArrayList selectedItems = (ArrayList)Session["selectedItems"];
        Int16 stackIndex;
        for (stackIndex = 0; stackIndex <= selectedItems.Count - 1; stackIndex++)
        {
            RadGrid1.AllowPaging = false;
            RadGrid1.Rebind();
            string curItem = selectedItems[stackIndex].ToString();
            foreach (GridItem item in RadGrid1.MasterTableView.Items)
            {
                if (item is GridDataItem)
                {
                    GridDataItem dataItem = (GridDataItem)item;
                    if (curItem.Equals(dataItem.OwnerTableView.DataKeyValues[dataItem.ItemIndex]["UserId"].ToString()))
                    {
                        dataItem.Selected = true;
                        Response.Write(curItem);//Datakey value of the selcted items
                        Response.Write("<br/>");
                        //Code To Insert
                        break;
                    }
                }
            }
        }
    }
    RadGrid1.AllowPaging = true;
    RadGrid1.Rebind();

            }

    protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
    {
        DataTable dt = obj.UserDetails();
        RadGrid1.DataSource = dt;

    }



    protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)
    {
        ArrayList selectedItems;
        if (Session["selectedItems"] == null)
        {
            selectedItems = new ArrayList();
        }
        else
        {
            selectedItems = (ArrayList)Session["selectedItems"];
        }
        if (e.CommandName == "RowClick")
        {
            GridDataItem dataItem = (GridDataItem)e.Item;
            string customerID = dataItem.OwnerTableView.DataKeyValues[dataItem.ItemIndex]["UserId"].ToString();
            if (dataItem.Selected)
            {
                selectedItems.Add(customerID);
                Session["selectedItems"] = selectedItems;
            }
            else
            {
                selectedItems.Remove(customerID);
                Session["selectedItems"] = selectedItems;
            }
        }
    }
    protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        if (Session["selectedItems"] != null)
        {
            ArrayList selectedItems = (ArrayList)Session["selectedItems"];
            Int16 stackIndex;
            for (stackIndex = 0; stackIndex <= selectedItems.Count - 1; stackIndex++)
            {
                string curItem = selectedItems[stackIndex].ToString();
                foreach (GridItem item in RadGrid1.MasterTableView.Items)
                {
                    if (item is GridDataItem)
                    {
                        GridDataItem dataItem = (GridDataItem)item;
                        if (curItem.Equals(dataItem.OwnerTableView.DataKeyValues[dataItem.ItemIndex]["UserId"].ToString()))
                        {
                            dataItem.Selected = true;
                            break;
                        }
                    }
                }
            }
        }
    }
}

Plz give response quickly,
Thanks

[Marin]

Hello,

 I checked the server-side code and the approach there looks ok. On the client-side the grid also has OnRowSelected and OnRowDeselected events that you can use to perform operations upon row selection. Generally the clients-side approach would also involve persisting the data about the selected rows on the server (e.g. in a Session object as in your server-side code). So you would need to send the data about the selected rows from the client - back to the server. For example this can be done by storing the data in a ASP.NET hidden field which would be posted back to the server where you can perform the necessary operations.

Regards,
Marin
Telerik