Getting Started with the Telerik WebForms TreeList

This tutorial will walk you through creating a Web page that contains a RadTreeList control. It shows how to create and bind a RadTreeList control using a declarative data source.

Creating and Binding the RadTreeList

1. Locate the "..\Live Demos\App_Data" folder underneath the folder where you have installed UI for ASP.NET AJAX controls. In this folder, find the "Northwind.mdf" file and copy it into the App_Data folder of your Web application. The Solution Explorer for your application may look something like the following:

   

2. Using the RadTreeList Smart tag expand the drop-down list labelled Choose Data Source and select `````:

   

3. The Data Source Configuration Wizard appears. On the Choose a Data Source Type page, select "SQL Database" and click OK:

   

4. On the Choose Your Data Connection page click the New Connection button and select the "Northwind.mdb" file that you copied into App_Data folder. Then click the Next button:

   

5. On the Configure Select Statement page, select the "Employees" table from the drop-down list, and select the "EmployeeID", "LastName", "FirstName", "Region", "PostalCode" and "Country" fields. Then choose Next:

   

6. On the Test Query page, click the Test Query button to see the data. Then click Finish, to exit the Configure Data Source wizard:

   

For more information about how to configure the RadTreeList through the Visual Studio designer, see the Design Time article.