Questions on UI for ASP.NET AJAX Forum

1 answer

203 views

Hyperlink

hi

How do i place a hyperlink that links to another page in the day view calender. The link when click should pickup the selected date and pass to the other page? Thanks

Scheduler

answered on 23 Feb 2010

3 answers

292 views

EditFormSettings PopUpSettings not getting set

I have a radgrid and I am trying to get the size of my edit form to be smaller. I have tried the following:

* <EditFormSettings PopUpSettings-Modal="true" PopUpSettings-Height="400" PopUpSettings-Width="400" EditFormType="Template">

* <EditFormSettings PopUpSettings-Modal="true" PopUpSettings-Height="400px" PopUpSettings-Width="400px" EditFormType="Template">

*<EditFormSettings PopUpSettings-Modal="true"EditFormType="Template">

But none of the three seem to set the size of the popup to 400px. What am I missing?

Thanks in advance,

Lee

Grid

answered on 23 Feb 2010

1 answer

125 views

Dynamic docks

How can i create dynamic docks with different data in a grid

Dock

answered on 23 Feb 2010

1 answer

68 views

[Solved] Grid Row Selection

Hello,

I have radgrid with fixed-width columns (header and item). I am using static headers, column resizing and also allowrowselect is true. The grid is loaded properly, but if i select the first row of the grid (row click, client side) there is a mismatch in widths of header and item columns. This is happening only for the first row of the grid and for other rows it is working properly. Is there any way to fix this.

Grid

answered on 23 Feb 2010

1 answer

215 views

GetWebResourceUrl

I hope you can help.

I have an .aspx file, in which I wrote a lot of javascript code(myJS).

I embbeded that javascript code inside a some.DLL, in this file I have embbeded other .js files.

What do I need to do for inserting from some.DLL, my javascript code(myJS) using this function GetWebResourceUrl, so my web page works in the same manner as the original version with the javascript inside the .aspx?

Where an how do I need to put the call to some.dll GetWebResourceUrl

Ajax

answered on 23 Feb 2010

3 answers

153 views

Getting error after implimenting templates

Hi I have read this thread http://www.telerik.com/help/aspnet-ajax/schedule_appearancetemplates.html on using templates I would like to be able to use the radio buttons to assign the job to a dept

when I load the page I get the following error

Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.

this is my aspx

    
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <%@ Register assembly="System.Web.Ajax" namespace="System.Web.UI" tagprefix="asp" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml">  
        
            <head id="Head1" runat="server">  
        
                <title>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server">  
        
                <div> 
        
                <AppointmentTemplate> 
        
               <div class="rsCustomAppointmentContainer <%# Eval("AppointmentType.Text") %>"> 
        
                   <h2><%# Eval("Subject") %> 
        
                       <asp:AjaxScriptManager ID="AjaxScriptManager1" runat="server">  
        
                       </asp:AjaxScriptManager> 
        
                   </h2> 
        
               </div> 
        
            </AppointmentTemplate>   
        
                    <telerik:RadScheduler ID="RadScheduler1" runat="server"   
        
                        CustomAttributeNames="fileUpload" DataDescriptionField="jobDescription"   
        
                        DataEndField="jobEnd" DataKeyField="jobId" DataSourceID="SqlDataSource1"   
        
                        DataStartField="jobLive" DataSubjectField="jobName" Skin="Windows7">  
        
                        <ResourceStyles> 
        
                            <telerik:ResourceStyleMapping ApplyCssClass="" Key="fileUpload" Text=""   
        
                                Type="url" /> 
        
                        </ResourceStyles> 
        
                    </telerik:RadScheduler> 
        
                    <asp:SqlDataSource ID="SqlDataSource1" runat="server"   
        
                        ConnectionString="<%$ ConnectionStrings:JT2010ConnectionString %>"   
        
                        SelectCommand="SELECT [jobId], [jobName], [jobType], [jobLive], [jobEnd], [jobDescription], [fileUpload], [UserId], [jobStatus], [jobCreated] FROM [Jobs] WHERE ([jobStatus] = @jobStatus)">  
        
                        <SelectParameters> 
        
                            <asp:Parameter DefaultValue="New" Name="jobStatus" Type="String" /> 
        
                        </SelectParameters> 
        
                    </asp:SqlDataSource> 
        
                    <InlineInsertTemplate> 
        
               <div id="InlineInsertTemplate" class="rsCustomAppointmentContainer <%# Eval("AppointmentType.Text") %>"> 
        
                   <asp:TextBox ID="TitleTextBox" runat="server" Text='<%# Bind("Subject") %>' Width="90%" TextMode="MultiLine" Height="20px"></asp:TextBox> 
        
                   <asp:LinkButton ID="InsertButton" runat="server" CommandName="Insert">  
        
                       <asp:Image runat="server" ID="insertImage" ImageUrl="Images/ok.gif" AlternateText="insert" /> 
        
                   </asp:LinkButton> 
        
                   <asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel">  
        
                   <asp:Image runat="server" ID="Image2" ImageUrl="Images/cancel.gif" AlternateText="cancel" /> 
        
                   </asp:LinkButton> 
        
                   <div class="inline-label">Color code:</div> 
        
                   <asp:RadioButtonList runat="server" ID="AppointmentTypeRadioButtonList"   
        
                       DataValueField="type" CssClass="AppointmentTypeSelectorTable" 
        
              DataSourceID="SqlDataSource2" SelectedValue='<%# Bind("AppointmentTypeID") %>' DataTextField="type" 
        
              RepeatDirection="Horizontal"   
        
                       DataTextFormatString="<span class='AppointmentTypeSelector rsAptType_{0}' onclick='onAppointmentTypeSelectorClick'></span>">  
        
                   </asp:RadioButtonList> 
        
                   <asp:SqlDataSource ID="SqlDataSource2" runat="server"   
        
                       ConnectionString="<%$ ConnectionStrings:JT2010ConnectionString %>"   
        
                       SelectCommand="SELECT [id], [type] FROM [JobType]"></asp:SqlDataSource> 
        
                   <asp:LinkButton ID="InsertMoreButton" runat="server" CommandName="More" CssClass="rsAdvancedEditLink">Advanced</asp:LinkButton> 
        
               </div> 
        
            </InlineInsertTemplate>   
        
            <InlineEditTemplate> 
        
               <div id="InlineEditTemplate" class="rsCustomAppointmentContainer <%# Eval("AppointmentType.Text") %>"> 
        
                   <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Subject") %>' Width="90%" TextMode="MultiLine" Height="20px"></asp:TextBox> 
        
                   <asp:LinkButton ID="LinkButton3" runat="server" CommandName="Update">  
        
                       <asp:Image runat="server" ID="Image6" ImageUrl="Images/ok.gif" AlternateText="update" /> 
        
                   </asp:LinkButton> 
        
                   <asp:LinkButton ID="LinkButton4" runat="server" CausesValidation="False" CommandName="Cancel">  
        
                       <asp:Image runat="server" ID="Image7" ImageUrl="Images/cancel.gif" AlternateText="cancel" /> 
        
                   </asp:LinkButton> 
        
                   <div class="inline-label">Color code:</div> 
        
                   <asp:RadioButtonList runat="server" ID="RadioButtonList3" DataValueField="type" CssClass="AppointmentTypeSelectorTable" 
        
              DataSourceID="SqlDataSource2" SelectedValue='<%# Bind("AppointmentTypeID") %>' DataTextField="type" 
        
              RepeatDirection="Horizontal"   
        
                       DataTextFormatString="<span class='AppointmentTypeSelector rsAptType_{0}' onclick='onAppointmentTypeSelectorClick'></span>">  
        
                   </asp:RadioButtonList> 
        
                   <asp:LinkButton ID="LinkButton5" runat="server" CommandName="More" CssClass="rsAdvancedEditLink">Advanced</asp:LinkButton> 
        
               </div> 
        
            </InlineEditTemplate>    
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

VB

    
            Imports System.Web  
        
            Imports System.Web.UI.HtmlControls  
        
            Imports System.Web.UI.WebControls  
        
            Imports System.Web.ApplicationServices  
        
            Partial Class users_Default4  
        
                Inherits System.Web.UI.Page  
        
                Protected Sub RadScheduler1_FormCreated(ByVal sender As Object, _  
        
                                           ByVal e As SchedulerFormCreatedEventArgs)  
        
                    If e.Container.Mode = SchedulerFormMode.Insert Then 
        
                        Dim list As RadioButtonList = _  
        
                            DirectCast(e.Container.FindControl("AppointmentTypeRadioButtonList"),  _  
        
                                                                RadioButtonList)  
        
                        list.SelectedIndex = 0  
        
                    End If 
        
                End Sub 
        
            End Class

thanks

M

Scheduler

answered on 23 Feb 2010

1 answer

223 views

Problem with RadWindow Scrollbar

I'm currently on Version Q1 2009 of the ASP.NET AJAX Controls.

My issue here is that we have a RadWindow with dynamically generated content (so unsure of how much text will appear). However we're not getting a scrollbar in IE 8 even when we turn compatiblity mode on...

However in Firefox etc. the scrollbar appears fine.

The code for the RadWindow is below :

    
                            <telerik:RadWindow runat="server" ID="uiReleaseNotes" Height="545px" Width="800px" 
        
                                Behaviors="Maximize" ReloadOnShow="true" ShowContentDuringLoad="false" Modal="true" 
        
                                VisibleStatusbar="false" VisibleTitlebar="true" NavigateUrl="ShowReleaseNotes.aspx" 
        
                                Skin="Telerik"> 
        
                            </telerik:RadWindow>

The Code in the page that loads up :

    
            <html xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head id="Head1" runat="server"> 
        
                <title>Release Notes</title> 
        
                <script type="text/javascript"> 
        
                    function GetRadWindow()   //Get reference to window     
        
                    { 
        
                        var oWindow = null; 
        
                        if (window.radWindow) 
        
                            oWindow = window.radWindow; 
        
                        else if (window.frameElement.radWindow) 
        
                            oWindow = window.frameElement.radWindow; 
        
                        return oWindow; 
        
                    }     
        
                </script> 
        
                <style type="text/css"> 
        
                    body, form, html 
        
                    { 
        
                        height: 100%; 
        
                        margin: 0px; 
        
                        padding: 0px; 
        
                    } 
        
                </style> 
        
                <link href="../CSS/businessport.css" rel="stylesheet" type="text/css" /> 
        
            </head> 
        
            <body> 
        
                <form id="form2" runat="server"> 
        
                    <div style="height:100%; width:100%; filter:progid:DXImageTransform.Microsoft.Gradient(endColorstr='#C0CFE2', startColorstr='#FFFFFF', gradientType='0');"> 
        
                    <asp:ScriptManager ID="ScriptManager" runat="server" /> 
        
                    <telerik:RadFormDecorator ID="RadFormDecorator1" runat="server" Skin="Sunset" ControlsToSkip="Scrollbars" /> 
        
                    <div style="border: 1px solid #FFB700; margin-top: 25px; margin-bottom: 25px; width: 85%; 
        
                        padding: 20px; background-color: #35435E;"> 
        
                        <div style="width: 100%; height: 26px; text-align: right;"> 
        
                            <asp:Button ID="cancelItemButton" runat="server" Text="Close" OnClick="cancelItemButton_Click" 
        
                                Width="75px" /> 
        
                        </div> 
        
                        <div class="Gold Large"> 
        
                            Release Notes - 
        
                            <asp:Label ID="uiVersion" runat="server" Font-Size="Large"></asp:Label> 
        
                        </div> 
        
                        <table class="Small White"> 
        
                            <tr> 
        
                                <td> 
        
                                    <asp:Label ID="uiReleaseNotes" runat="server"></asp:Label> 
        
                                </td> 
        
                            </tr> 
        
                        </table> 
        
                    </div> 
        
                    </div> 
        
                </form> 
        
            </body> 
        
            </html>

Window

answered on 23 Feb 2010

1 answer

180 views

Binding Custom List with Self Referencing Grid

My problem is
I use a self referencing grid. Im binding a List which has 2 objects. The 1st object has a property called ID set to 1 and ParentID set to 0. The second object has ParentID set to ID for FIrst Object(1). Now when i try to bind the list as datasource to the grid in Page Load,
I get the 1st record displayed and 2nd record as child to first record. The problem is in addition to that, i recieve a duplicate second record in the same level as 1st record.

Any help is appreciated.

I have attached a output which shows the wrong value. There the 2nd object is duplicated once in child view and in the same hierarchy as 1st node.

Following is the code

ASPX

    
            <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Organization.aspx.cs" Inherits="ConcordanceSample.Organization" %> 
        
            <%@ Register TagPrefix="telerik" Namespace="Telerik.Charting" Assembly="Telerik.Web.UI" %> 
        
            <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml" > 
        
            <head id="Head1" runat="server">  
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server">  
        
                    <telerik:RadScriptManager runat="server" ID="ScriptManager1">  
        
                    </telerik:RadScriptManager> 
        
                    <!-- content start --> 
        
                <div> 
        
                    <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder> 
        
                    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">  
        
                     <AjaxSettings> 
        
                            <telerik:AjaxSetting AjaxControlID="RadGrid1">  
        
                                <UpdatedControls> 
        
                                    <telerik:AjaxUpdatedControl ControlID="RadGrid1" /> 
        
                                </UpdatedControls> 
        
                            </telerik:AjaxSetting> 
        
                     </AjaxSettings> 
        
                    </telerik:RadAjaxManager> 
        
                    <telerik:RadGrid ID="RadGrid1" runat="server" 
        
                    OnColumnCreated="RadGrid1_ColumnCreated" OnItemCreated="RadGrid1_ItemCreated" OnItemDataBound="RadGrid1_ItemDataBound">  
        
                      <MasterTableView HierarchyDefaultExpanded="false" HierarchyLoadMode="Client" AllowSorting="true" 
        
                            DataKeyNames="ParentID,ID" Width="100%">  
        
                           <SelfHierarchySettings ParentKeyName="ParentID" KeyName="ID" /> 
        
                        </MasterTableView> 
        
                        <ClientSettings AllowExpandCollapse="true" /> 
        
                    </telerik:RadGrid> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

CODE - BEHIND

    
            using System;  
        
            using System.Collections;  
        
            using System.Configuration;  
        
            using System.Data;  
        
            using System.Linq;  
        
            using System.Web;  
        
            using System.Web.Security;  
        
            using System.Web.UI;  
        
            using System.Web.UI.HtmlControls;  
        
            using System.Web.UI.WebControls;  
        
            using System.Web.UI.WebControls.WebParts;  
        
            using System.Xml.Linq;  
        
            using System.Collections.Generic;  
        
            using Telerik.Web.UI;  
        
            namespace ConcordanceSample  
        
            {  
        
                public partial class Organization : System.Web.UI.Page  
        
                {  
        
                    protected void Page_Load(object sender, EventArgs e)  
        
                    {  
        
                        if (!IsPostBack)  
        
                        {  
        
                            RadGrid1.DataSource = AddMatter();  
        
                            RadGrid1.DataBind();  
        
                        }  
        
                    }  
        
                    protected void RadGrid1_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)  
        
                    {  
        
                    }  
        
                    protected void RadGrid1_ColumnCreated(object sender, GridColumnCreatedEventArgs e)  
        
                    {  
        
                        if (e.Column is GridExpandColumn)  
        
                        {  
        
                            e.Column.Visible = false;  
        
                        }  
        
                        else if (e.Column is GridBoundColumn)  
        
                        {  
        
                            e.Column.HeaderStyle.Width = Unit.Pixel(100);  
        
                        }  
        
                    }  
        
                    public void Page_PreRenderComplete(object sender, EventArgs e)  
        
                    {  
        
                        HideExpandColumnRecursive(RadGrid1.MasterTableView);  
        
                    }  
        
                    public void HideExpandColumnRecursive(GridTableView tableView)  
        
                    {  
        
                        GridItem[] nestedViewItems = tableView.GetItems(GridItemType.NestedView);  
        
                        foreach (GridNestedViewItem nestedViewItem in nestedViewItems)  
        
                        {  
        
                            foreach (GridTableView nestedView in nestedViewItem.NestedTableViews)  
        
                            {  
        
                                nestedView.Style["border"] = "0";  
        
                                Button MyExpandCollapseButton = (Button)nestedView.ParentItem.FindControl("MyExpandCollapseButton");  
        
                                if (nestedView.Items.Count == 0)  
        
                                {  
        
                                    if (MyExpandCollapseButton != null)  
        
                                    {  
        
                                        MyExpandCollapseButton.Style["visibility"] = "hidden";  
        
                                    }  
        
                                    nestedViewItem.Visible = false;  
        
                                }  
        
                                else 
        
                                {  
        
                                    if (MyExpandCollapseButton != null)  
        
                                    {  
        
                                        MyExpandCollapseButton.Style.Remove("visibility");  
        
                                    }  
        
                                }  
        
                                if (nestedView.HasDetailTables)  
        
                                {  
        
                                    HideExpandColumnRecursive(nestedView);  
        
                                }  
        
                            }  
        
                        }  
        
                    }  
        
                    protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)  
        
                    {  
        
                        CreateExpandCollapseButton(e.Item, "ID");  
        
                        if (e.Item is GridHeaderItem && e.Item.OwnerTableView != RadGrid1.MasterTableView)  
        
                        {  
        
                            e.Item.Style["display"] = "none";  
        
                        }  
        
                        if (e.Item is GridNestedViewItem)  
        
                        {  
        
                            e.Item.Cells[0].Visible = false;  
        
                        }  
        
                    }  
        
                    protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)  
        
                    {  
        
                        CreateExpandCollapseButton(e.Item, "ID");  
        
                    }  
        
                    protected void RadGrid1_PreRender(object sender, EventArgs e)  
        
                    {  
        
                        if (!Page.IsPostBack)  
        
                        {  
        
                        }  
        
                    }  
        
                    public void CreateExpandCollapseButton(GridItem item, string columnUniqueName)  
        
                    {  
        
                        if (item is GridDataItem)  
        
                        {  
        
                            if (item.FindControl("MyExpandCollapseButton") == null)  
        
                            {  
        
                                Button button = new Button();  
        
                                button.Click += new EventHandler(button_Click);  
        
                                button.CommandName = "ExpandCollapse";  
        
                                button.CssClass = (item.Expanded) ? "rgCollapse" : "rgExpand";  
        
                                button.ID = "MyExpandCollapseButton";  
        
                                if (item.OwnerTableView.HierarchyLoadMode == GridChildLoadMode.Client)  
        
                                {  
        
                                    string script = String.Format(@"$find(""{0}"")._toggleExpand(this, event); return false;", item.Parent.Parent.ClientID);  
        
                                    button.OnClientClick = script;  
        
                                }  
        
                                int level = item.ItemIndexHierarchical.Split(':').Length;  
        
                                if (level > 1)  
        
                                {  
        
                                    button.Style["margin-left"] = level + 10 + "px";  
        
                                }  
        
                                TableCell cell = ((GridDataItem)item)[columnUniqueName];  
        
                                cell.Controls.Add(button);  
        
                                cell.Controls.Add(new LiteralControl("&nbsp;"));  
        
                                cell.Controls.Add(new LiteralControl(((GridDataItem)item).GetDataKeyValue(columnUniqueName).ToString()));  
        
                            }  
        
                        }  
        
                    }  
        
                    void button_Click(object sender, EventArgs e)  
        
                    {  
        
                        ((Button)sender).CssClass = (((Button)sender).CssClass == "rgExpand") ? "rgCollapse" : "rgExpand";  
        
                    }  
        
                    public List<MatterObject> AddMatter()  
        
                    {  
        
                        List<MatterObject> olistMatter = new List<MatterObject>();  
        
                        MatterObject objMatter = new MatterObject();  
        
                        objMatter.ID = 1;  
        
                        objMatter.Name = "Parket & Parker";  
        
                        objMatter.CreatedBy = "Krishnan";  
        
                        objMatter.CreationDate = "2/17/2010";  
        
                        objMatter.LastModifiedDate = "2/17/2010";  
        
                        objMatter.LastModifiedBy = "Krishnan";  
        
                        objMatter.ParentID = 0;  
        
                        olistMatter.Add(objMatter);  
        
                        MatterObject objMatter1 = new MatterObject();  
        
                        objMatter1.ID = 2;  
        
                        objMatter1.Name = "Lancer & Lancer";  
        
                        objMatter1.CreatedBy = "L.N.K";  
        
                        objMatter1.CreationDate = "2/17/2010";  
        
                        objMatter1.LastModifiedDate = "2/17/2010";  
        
                        objMatter1.LastModifiedBy = "Krishnan";  
        
                        objMatter1.ParentID = 1;  
        
                        olistMatter.Add(objMatter1);  
        
                        return olistMatter;  
        
                    }  
        
                    public List<MatterObject> AddChild()  
        
                    {  
        
                        List<MatterObject> olistMatter = new List<MatterObject>();  
        
                        MatterObject objMatter = new MatterObject();  
        
                        objMatter.ID = 2;  
        
                        objMatter.Name = "Organization Folder 1";  
        
                        objMatter.CreatedBy = "LN";  
        
                        objMatter.CreationDate = "2/16/2010";  
        
                        objMatter.LastModifiedDate = "2/16/2010";  
        
                        objMatter.LastModifiedBy = "LN";  
        
                        olistMatter.Add(objMatter);  
        
                        objMatter = new MatterObject();  
        
                        objMatter.ID = 3;  
        
                        objMatter.Name = "Organization Folder 2";  
        
                        objMatter.CreatedBy = "Krishnan";  
        
                        objMatter.CreationDate = "2/15/2010";  
        
                        objMatter.LastModifiedDate = "2/15/2010";  
        
                        objMatter.LastModifiedBy = "Krishnan";  
        
                        olistMatter.Add(objMatter);  
        
                        return olistMatter;  
        
                    }  
        
                }  
        
                public class MatterObject  
        
                {  
        
                    public int ID { get; set; }  
        
                    public string Name { get; set; }  
        
                    public string CreatedBy { get; set; }  
        
                    public string CreationDate { get; set; }  
        
                    public string LastModifiedDate { get; set; }  
        
                    public string LastModifiedBy { get; set; }  
        
                    public int ParentID { get; set; }  
        
                    //public MatterChild Child { get; set; }          
        
                }  
        
            }

Grid

answered on 23 Feb 2010

1 answer

146 views

[Solved] Problem with DataKey values

Hi,
I have some problem with DataKey values. I used to bind certain template controls of the grid based on the datakey values of the grid. I only need to bind when the grid is in edit mode. So i used ItemDataBound event and check the IsEditMode mtthod to bind the details based on the DataKeyvalues. Every thing is working fine it is getting the records based on primarykey Datakey value.

But the problem occures when i try to add new record. When i click the Insert button it goes to ItemDatabound event and check the IsEditMode but throws error when comes to this line of code,

EID = e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex][

"EID"].ToString();

But i need the above code for binding data when in EditMode, but causes an null error when click Insert Button.

So help me to solve this issue,

-Thanks

Grid

answered on 23 Feb 2010

4 answers

353 views

RadGrid bound to EntityDataSource

I have a RadGrid that is bound to an EntityDataSource. The RadGrid uses an edit form template and two of the controls are bound to Foreign Key tables(objects) of the parent entity object. I have insert and update working. But I get "Object reference not set to an instance of an object" when i perform a delete. Does anyone know why this happens?

Below is a very rough markup of how my code is structured:

    
            <telerik:radgrid id="myGrid" runat="server" DatasourceID="dsCustomers" AllowAutomaticInserts="true" 

            AllowAutomaticUpdates="true" AllowAutomaticDeletes="true"> 

              <MasterTableView CommandItemDisplay="top" DataSourceId="dsCustomers" DataKeyNames="CustomerId" EditMode="EditForms"> 

                <Columns>
        
                  <telerik:GridEditCommandColumn ButtonType="ImageButton" EditText="Edit" />
        
                  <telerik:GridBoundColumn HeaderText="Title" DataField="Title.Description" />
        
                  <telerik:GridBoundColumn HeaderText="Name" DataField="Name" />
        
                  <telerik:GridButtonColumn ConfirmText="Delete this Customer?" ConfirmDialogType="Classic" ConfirmTitle="Delete" 

                    ButtonType="ImageButton" CommandName="Delete" Text="Delete" UniqueName="DeleteColumn" /> 

                </Columns>
        
                <EditFormSettings EditFormType="Template">
        
                  <FormTemplate>
        
                    <table>
        
                      <tr>
        
                        <td>
        
                          <telerik:RadComboBox id="cmbTitle" runat="server" DataSourceID="dsTitles" AppendDataBoundItems="true"
        
                            DataTextField="Description" DataValueField="Id" SelectedValue='<%# Bind("Title.Id") %>' >
        
                            <Items><telerik:RadComboBoxItem Value="0" Text="" Selected="true" /></Items>
        
                          </telerik:RadcomboBox>
        
                        </td>
        
                        <td>
        
                          <telerik:RadTextBox id="txtName" runat="server" Text='<% Bind("Name") %>;' /> 

                        </td>

                      </tr>

                    </table>
        
                  </FormTemplate>
        
                </EditFormSettings>
        
              </MasterTableView>
        
            </telerik:radgrid>

            <asp:EntityDataSource ID="dsCustomers" runat="server" ConnectionString="name=CustomerEntities" 

            DefaultContainerName="CustomerEntities" EnableUpdate="true" EnableInsert="true" EnableDelete="true" 

            EntitySetName="Customer" Include="Title" />
        
            <asp:EntityDataSource ID="dsTitles" runat="server" ConnectionString="name=CustomerEntities" 

            DefaultContainerName="CustomerEntities" EntitySetName="Title" />

Grid

answered on 23 Feb 2010