Checkbox CheckedChanged event in GridTemplateColumn

[Ilija]

Hi Guys,

I am having a hard time putting an asp:CheckBox control inside of a GridTemplateColumn and subscribing to the CheckedChanged event for it... The checkbox posts back when I click on it, but the event never gets fired...

Here's the code:

	<telerik:RadGrid ID="rgPublicFields" runat="server" Skin="Vista">
	<MasterTableView AutoGenerateColumns="false">
	<Columns>
	<telerik:GridBoundColumn UniqueName="PublicFieldID" DataField="PublicFieldID" Visible="false"></telerik:GridBoundColumn>
	<telerik:GridTemplateColumn HeaderText="Include" UniqueName="Active">
	<ItemTemplate>
	<asp:CheckBox ID="cbInclude" runat="server" Checked='<%# System.Convert.ToBoolean(int.Parse(Eval("Active").ToString())) %>' Text='<%# Eval("PublicFieldID") %>' AutoPostBack="true" OnCheckedChanged="cbInclude_CheckedChanged" />
	</ItemTemplate>
	</telerik:GridTemplateColumn>
	<telerik:GridBoundColumn HeaderText="Field Name" UniqueName="FieldName" DataField="FieldName"></telerik:GridBoundColumn>
	<telerik:GridTemplateColumn HeaderText="Display As" UniqueName="DisplayName">
	<ItemTemplate>
	<asp:TextBox ID="tbDisplayName" runat="server" Text='<%# Eval("DisplayName") %>'></asp:TextBox>
	<asp:Button ID="btnUpdate" runat="server" CommandName="UpdateDisplayName" CommandArgument="" Text="Update" />
	</ItemTemplate>
	</telerik:GridTemplateColumn>
	</Columns>
	</MasterTableView>
	</telerik:RadGrid>

And the codebehind:

	protected void Page_Load(object sender, EventArgs e)
	{
	DataSet ds = new DataSet();
	ds.Tables.Add();
	ds.Tables[0].Columns.Add("PublicFieldID");
	ds.Tables[0].Columns.Add("Active");
	ds.Tables[0].Columns.Add("FieldName");
	ds.Tables[0].Columns.Add("DisplayName");
	ds.Tables[0].Rows.Add(new object[] { 1, 1, "Email", "Email Address" });
	rgPublicFields.DataSource = ds;
	rgPublicFields.DataBind();
	}
	protected void cbInclude_CheckedChanged(object sender, EventArgs e)
	{
	CheckBox cb = (CheckBox)sender; // I have a breakpoint set here that never stops
	}

If anyone could help me identify why this is happening, it would be greatly appreciated.

[Vladimir]

Hi Ilija,

Calling DataBind() on every Page_Load will clear the grid child controls and their ViewState. You can use NeedDataSource to assign DataSource for the grid.

Vlad

[Ilija]

Thank you, this solved my problem.

[Shinu]

Hi Ilija,

You can go through the following demo link to get more details about AdvanceDataBinding techniques.
Advanced data-binding

Thanks
Shinu.