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Problem with ajax request

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This is a migrated thread and some comments may be shown as answers.
Jean
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Jean asked on 25 May 2010, 04:57 PM
Hi ! I spent all this afternoon on a problem without findind a solution :(

I added an ASP.NET AJAX Q3 2009 Radgrid :
<telerik:RadGrid ID="RadGrid1" runat="server" GridLines="None" AutoGenerateColumns="False" 
                    Skin="WebBlue" AllowSorting="True" AllowPaging="True" OnNeedDataSource="RadGrid1_NeedDataSource"  
                    OnItemCreated="RadGrid1_ItemCreated" 
                    EnableAJAX="True" OnItemCommand="RadGrid1_ItemCommand" OnItemEvent="RadGrid1_ItemEvent"
                        <SortingSettings SortedAscToolTip="Tri croissant" SortedDescToolTip="Tri d&#233;croissant" 
                            SortToolTip="Trier" /> 
                        <MasterTableView> 
                            <RowIndicatorColumn Visible="False"
                                <HeaderStyle Width="20px" /> 
                            </RowIndicatorColumn> 
                            <ExpandCollapseColumn Resizable="False" Visible="False"
                                <HeaderStyle Width="20px" /> 
                            </ExpandCollapseColumn> 
                            <Columns> 
                                <telerik:GridBoundColumn DataField="Cli" meta:resourcekey="CliColumnResource" UniqueName="Cli"
                                </telerik:GridBoundColumn> 
                                <telerik:GridBoundColumn DataField="ACId" meta:resourcekey="ACIdColumnResource" UniqueName="ACId"
                                </telerik:GridBoundColumn> 
                                <telerik:GridBoundColumn DataField="ArchiveId" meta:resourcekey="ArchiveIdColumnResource" UniqueName="ArchiveId"
                                </telerik:GridBoundColumn> 
                            </Columns> 
                       </MasterTableView> 
                       <ClientSettings> 
                              <Selecting AllowRowSelect="True" /> 
                         </ClientSettings> 
                        <SelectedItemStyle BackColor="Blue" ForeColor="White" /> 
            </telerik:RadGrid> 

In code behind I added that :
RadGrid1.MasterTableView.ClientDataKeyNames = new string[] { "ArchiveId""ACId" }; 
 
            this.RadGrid1.ClientSettings.ClientEvents.OnRowSelected = "RowSelected"

in order to do something on row selected...

Here is the definition of RowSelected funtion :
<script type="text/javascript"
    function RowSelected(sender, eventArgs) { 
        var archiveId = eventArgs.getDataKeyValue("ArchiveId"); 
        var archiveClassId = eventArgs.getDataKeyValue("ACId"); 
        window["RadGrid1.ClientID"].AjaxRequest("RadGrid1.UniqueID""RadGrid1_RowSelected"); 
    } 
</script> 

And in code behind :
protected override void RaisePostBackEvent(IPostBackEventHandler sourceControl, string eventArgument) 
        { 
            base.RaisePostBackEvent(sourceControl, eventArgument); 
 
            if (eventArgument == null
                return
            if (eventArgument.Trim() == ""
                return
 
            string[] parts = eventArgument.Split(':'); 
            switch (parts[0]) 
            { 
                case "RadGrid1_RowSelected"
 
                    string[] subparts = parts[2].Split('ยค'); 
 
                    TbxArchiveId.Text = subparts[1]; 
                    TbxCAId.Text = subparts[0]; 
 
                    break
            } 
        } 

When I debug with IE, it tells me that "window[...]" is null.

How can it be ?? :(

Can you help me please ?


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Radoslav
Telerik team
answered on 28 May 2010, 01:00 PM
Hello Jean,

To get the RadGrid on client side you need to use the $find() operator. Please check out the following online documentation article which explains how to get RadGrid client object:
http://www.telerik.com/help/aspnet-ajax/grdgettingradgridclientobject.html
Also to perform an ajax request from client side you need to get the RadAjaxManager and call its ajaxRequest() method. I believe that the following RadAjaxManager's HowTo section will be of help.

Sincerely yours,
Radoslav
the Telerik team

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Radoslav
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