Creating a C1Expander control in code is fairly simple. In the following steps you'll add a PlaceHolder control to the page, add an import statement, add and customize the C1Expander, and add the control to the PlaceHolder.

Complete the following steps:

1. In Design view, navigate to the Visual Studio Toolbox and add a PlaceHolder control to your page.
2. Double-click the page to create the Page_Load event and switch to Code view.
3. Add the following statement to the top of the Code Editor to import the appropriate namespace:

   To write code in Visual Basic

   Visual Basic	Copy Code
   Imports C1.Web.Wijmo.Controls.C1Expander

   To write code in C#

   C#	Copy Code
   using C1.Web.Wijmo.Controls.C1Expander;

4. Add the following code to the Page_Load event to create and customize the C1Expander control.

   To write code in Visual Basic

   Visual Basic	Copy Code
   ' Create a new C1Expander. Dim C1E As New C1Expander ' Set the control's size, appearance, and content. C1E.VisualStyle = "Office2007Blue" C1E.Height = 200 C1E.Width = 200 C1E.ContentUrl = "http://www.wikipedia.com/" ' Add the C1Expander to the PlaceHolder control. PlaceHolder1.Controls.Add(C1E)

   To write code in C#

   C#	Copy Code
   // Create a new C1Expander. C1Expander C1E = new C1Expander(); // Set the control's size, appearance, and content. C1E.VisualStyle = "Office2007Blue"; C1E.Height = 200; C1E.Width = 200; C1E.ContentUrl = "http://www.wikipedia.com/"; // Add the C1Expander to the PlaceHolder control. PlaceHolder1.Controls.Add(C1E);

What You've Accomplished

Run your application and observe that the C1Expander control was created and displays external content: