Problem with GridBoundColumn

[$_$]

Hi,
I have been trying to extend the Telerik GridBoundColumn. Everything seems to be OK when it is used in the statdarnd RadGrid without Filtering.
When I turn on the AllowFilteringByColumn property of the RadGrid, I get the following error message:

 Multiple controls with the same ID 'FilterTextBox_Date' were found. FindControl requires that controls have unique IDs.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Multiple controls with the same ID 'FilterTextBox_Date' were found. FindControl requires that controls have unique IDs.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): Multiple controls with the same ID 'FilterTextBox_Date' were found. FindControl requires that controls have unique IDs.]
   System.Web.UI.Control.FillNamedControlsTable(Control namingContainer, ControlCollection controls) +273
   System.Web.UI.Control.FillNamedControlsTable(Control namingContainer, ControlCollection controls) +320
   System.Web.UI.Control.EnsureNamedControlsTable() +61
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +222
   System.Web.UI.Control.FindControl(String id) +12
   Telerik.Web.UI.GridColumn.PrepareCell(TableCell cell, GridItem item) +1238
   Telerik.Web.UI.GridItemDecorator.DecorateItem(GridTableView owner, GridColumn[] columnArray) +364
   Telerik.Web.UI.GridFilterItemDecorator.DecorateItem(GridTableView owner, GridColumn[] columnArray) +112
   Telerik.Web.UI.GridItem.PrepareItemStyle() +259
   Telerik.Web.UI.GridMultiRowItem.PrepareItemStyle() +109
   Telerik.Web.UI.RadGrid.PrepareRows(GridTableView view) +132
   Telerik.Web.UI.RadGrid.Render(HtmlTextWriter writer) +92
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +163
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +51
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
   System.Web.UI.Page.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266

And these are my code:

New GridBoundColumn

  public class MyGridBoundColumn : GridBoundColumn
    {

    }

Aspx:

    <telerik:DDSGrid ID="uxGrid" runat="server" GridLines="None" Width="100%" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" AllowFilteringByColumn="true"
            OnNeedDataSource="uxGrid_NeedDataSource" EnableEmbeddedSkins="false">
            <MasterTableView >
                <Columns>
                    <me:MyGridBoundColumn HeaderStyle-HorizontalAlign="Center" UniqueName="Row" HeaderText="Row" DataField="Row"/>
                </Columns>

            </MasterTableView>
        </telerik:DDSGrid>

Codebehide:

protected void uxGrid_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
{

    DataTable tb = new DataTable("tb");
    DataColumn col;
    DataRow row;

    col = new DataColumn("Row");
    tb.Columns.Add(col);


    for (int i = 1; i <= 1; i++)
    {
        row = tb.NewRow();
        row["Row"] = "Row " + i;


        tb.Rows.Add(row);
    }
    ((RadGrid)source).DataSource = tb;
}

Is there anyone can help me to solve this problems? Thanks

[$_$]

One more information is that I am using Telerik version 2008.3.1314.35

[$_$]

Sorry, this is my fault. I have found it. Please, close this thread. Thanks

[Marc]

It would have been great if you could have said what it was that you found to be the cause of your problem.

[Nishant]

Could you tell what was the problem.
I am also facing same issue some time in auto generated column of radgrid. Please tell how can i trace my problem.


Regards,
Nishant

[Princy]

Hi Nishant,

I'm not clear about your issue, I guess you are getting some exception. Seems like you ended up with multiple controls on your form having the same auto-generated ID. Can you check for the controls in the form, and check in its  ID property - there should be some controls that have the same value, you can change it to any unique value, and this should fix the problems. If this doesn't help, please provide your full code snippet.

Thanks,
Princy

[$_$]

Hi Nishant,
I couldn't remember what happened at that time :)
But please remember to override the two methods:
+ protected override void CopyBaseProperties(GridColumn fromColumn)
+ public override GridColumn Clone()
 or else you will get problems later

Regards