Accessing Controls Inside Templates

The following example demonstrates how to find RadTreeView control nested in ItemTemplate of RadComboBox.

Here follows the markup:

ASPNET

<telerik:radcombobox id="RadComboBox1" runat="server">    
<ItemTemplate>                           
	<telerik:RadTreeView RenderMode="Lightweight" ID="RadTreeView1" runat="server">            
	<Nodes>                
		<telerik:RadTreeNode Text="Products"></telerik:RadTreeNode>                
		<telerik:RadTreeNode Text="Services"></telerik:RadTreeNode>            
	</Nodes>        
	</telerik:RadTreeView>    
</ItemTemplate>    
<Items>        
	<telerik:RadComboBoxItem Text="" />    
</Items>
</telerik:radcombobox>

How to find RadTreeView object server-side

You need to search for the RadTreeView in the Controls collection of the RadComboBox's item:

C#

	
RadTreeView tree = (RadTreeView)RadComboBox1.Items[0].FindControl("RadTreeView1");
	          

VB.NET

	     
	
Dim tree As RadTreeView = DirectCast(RadComboBox1.Items(0).FindControl("RadTreeView1"), RadTreeView)
				

How to find RadTreeView object client-side

Here are the available options to find the RadTreeView object in RadComboBox, on the client:

JavaScript

	
var combo = $find("<%= RadComboBox1.ClientID %>");
var tree = combo.get_items().getItem(0).findControl("RadTreeView1"); 
tree.get_nodes().getNode(1).select();

/* OR */

var tree = $find('<%= RadComboBox1.Items[0].FindControl("RadTreeView1").ClientID %>'); 
tree.get_nodes().getNode(1).select();
	

See Also

• Finding Embedded RadComboBox on the Client