DataList within a RadGrid Question

[Mike]

I have a RadGrid that has a DataList inside of each row. 
The DataList has checkboxes in them. 

Example:
Let's say the grid has four rows, and the datalist inside each row has three rows itself. 

When a user checks one of the checkboxes in the datalist, I need the same checkbox in the the other three rows with the same value to get checked.  Would it be easier for me to do it client side or server side?  Also, any help to achieve this would be great.
Here a sample of the code:

<telerik:GridTemplateColumn HeaderText="Optional Languages" HeaderStyle-Width="100%" ItemStyle-HorizontalAlign="Left" Groupable="false">
   <ItemTemplate>
   <asp:DataList ID="DataListl" OnItemDataBound="DataList1_ItemDataBound" RepeatLayout="Table" Width="100%" ItemStyle-BorderStyle="None" runat="server">
    <ItemTemplate>
            <asp:CheckBox ID="CheckboxOptional1" runat="server" />
            <asp:Literal ID="LiteralOptional1" Visible="false" runat="server" />
         </ItemTemplate>
      </asp:DataList>
   </ItemTemplate>
</telerik:GridTemplateColumn>

[Shinu]

Hello Michael,

In order to achieve this try the following code snippet in CheckedChanged event of CheckBox.

C#:

protected void CheckboxOptional1_CheckedChanged(object sender, EventArgs e)
 {
  CheckBox selectedChkbox = (CheckBox)sender;
  GridDataItem item = (GridDataItem)selectedChkbox.NamingContainer.NamingContainer.NamingContainer;
  int index = ((selectedChkbox.NamingContainer as DataListItem)).ItemIndex;
  foreach (GridDataItem dataitem in RadGrid1.Items)
   {
     if (item.ItemIndex != dataitem.ItemIndex)
      {
        DataList list = (DataList)dataitem.FindControl("DataListl");
        CheckBox chk = (CheckBox) list.Items[index].FindControl("CheckboxOptional1");
        chk.Checked = selectedChkbox.Checked;
      }
    }
 }

-Shinu.

[Mike]

Shinu,

You are AWESOME!

Thank you!