One TemplateColumn update another via AJAX

[DonKitchen]

I have a Radgrid with two template columns.  Both columns have radcomboboxes.  I need one of the comboxes to update the values in another, when the row is in edit mode.

How can I access the second combobox when the first one posts back?  I just can't figure how to get to the instance of it.

I'm sure this is something simple that I am just missing.

[DonKitchen]

Let me add that I already have some code in the SelectedIndexChanged event for the first combobox.  I just need the code for inside there to get at and modify the data in the second combobox.

[Princy]

Hello,

        Try out the code below to access the second combobox in the SelectedIndexChanged event of the first combobox.
aspx:

<telerik:GridTemplateColumn HeaderText="Countries" UniqueName="TemplateColumn1">
                    <EditItemTemplate>
                        <telerik:RadComboBox ID="RadComboBox1" AutoPostBack="true" DataSourceID="SqlDataSource1" DataTextField="Countries" DataValueField="Countries"  runat="server" OnSelectedIndexChanged="RadComboBox1_SelectedIndexChanged">
                        </telerik:RadComboBox>
                    </EditItemTemplate>
                    </telerik:GridTemplateColumn>
                    <telerik:GridTemplateColumn HeaderText="ContID" UniqueName="TemplateColumn2" >
                    <EditItemTemplate>
                        <telerik:RadComboBox ID="RadComboBox2" runat="server">
                        </telerik:RadComboBox>
                    </EditItemTemplate>
                  </telerik:GridTemplateColumn>

cs:

 protected void RadComboBox1_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
    {
        RadComboBox combo1 = (RadComboBox)o;
        GridEditableItem dataItem = (GridEditableItem)combo1.NamingContainer;
        RadComboBox combo2 = (RadComboBox)dataItem.FindControl("RadComboBox2");

    }

Thanks
Princy.

[DonKitchen]

Worked great, thanks!