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Column Headers go blank when sorting

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Grid

This is a migrated thread and some comments may be shown as answers.

Andrew asked on 18 Jul 2011, 08:02 AM

I have a grid where the columns are created via code, not the markup. When I sort on this grid, the column header text goes blank!
I've isolated this bug into a test project, here's the complete code:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="RadGridDynamicColumns._Default" %>

<!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 runat="server">

<title>Sample Rad Grid Example</title>

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager runat="server" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadGrid1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="gvwPlayers" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" />

<telerik:RadGrid

id="_radGrid"

runat="server"

OnNeedDataSource="radGrid_NeedDataSource"

AllowSorting="true"

AutoGenerateColumns="false"

Width="100mm">

</telerik:RadGrid>

</form>

</body>

</html>

And the Code-Behind:

using System;

using Telerik.Web.UI;

namespace RadGridDynamicColumns

{

// A test data class

public class Widget

{

public string Name { get; set; }

public string Description { get; set; }

}

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

this._radGrid.Columns.Add(new GridBoundColumn { HeaderText = "Name", DataField = "Name" });

this._radGrid.Columns.Add(new GridBoundColumn { HeaderText = "Description", DataField = "Description" });

}

public Widget[] TestData = new[]

{

new Widget { Name = "FooBar", Description = "WidgetFooBar" },

new Widget { Name = "Harold", Description = "Biggles" }

};

protected void radGrid_NeedDataSource(object source, GridNeedDataSourceEventArgs e)

{

this._radGrid.DataSource = this.TestData;

}

Column Headers go blank when sorting

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