Question

I have a Telerik RadGrid with a GridTemplateColumn that contains a checkbox, as follows:

<telerik:GridTemplateColumn HeaderText="MINE" UniqueName="MyTemplateColumn">
     <ItemTemplate>
          <asp:CheckBox id="MyCheckBox" runat="server"></asp:CheckBox>
     </ItemTemplate>
</telerik:GridTemplateColumn>

I want to set the box to be “checked” based on a value read from the database. I could handle the ItemDataBound event and read the database when each row is bound, but that results in n lookups. Instead, I want to handle DataBound, and then set all the values at once. So, in that method, I want code like this:

// read all values from database first, then...
foreach(var chkbox in MyRadGrid.MasterTableView.Columns.FindByUniqueName("MyTemplateColumn").FindControl("MyCheckBox")) {
    chkbox.Checked = oneValue;
}

That doesn’t work, because FindControl isn’t a method of GridColumn, and it won’t generate an iterable list of the checkboxes. What is the correct way to iterate through the checkboxes in the template column? Thanks!

Answer 1

Telerik got back to me on their forums with the answer, as follows:

foreach (GridDataItem item in MyRadGrid.MasterTableView.Items) 
{ 
  CheckBox chk = (CheckBox)item.FindControl("MyCheckBox");
  // Set the value here
}

Hope this is useful for someone!