BUG: Visual Studio .NET does not generate a code-behind declaration for Web User controls

View products that this article applies to.

This article was previously published under Q316370

Symptoms

When you create a Web User control and drag it to an .aspx page, Visual Studio .NET does not automatically generate a code-behind declaration for the Web User control.

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Resolution

To resolve this problem, manually enter the declaration for the Web User control in the code-behind file. The following two code examples show a Web Form (WebForm1) with an embedded Button control. You can add the declaration for the Web User control in the same place that Visual Studio .NET adds the declaration for the Button control.

Microsoft Visual C# .NET example

public class WebForm1 : System.Web.UI.Page
{
	protected System.Web.UI.WebControls.Button Button1;
protected WebUserControl1 ctlMyControl;

Microsoft Visual Basic .NET example

Public Class WebForm1
	Inherits System.Web.UI.Page
	Protected WithEvents Button1 As System.Web.UI.WebControls.Button
	Protected WithEvents ctlMyControl As WebUserControl1

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Status

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.

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More information

Steps to reproduce the problem

Start Visual Studio .NET, and then create a new Web Application project in Visual C# .NET.
In Visual Studio .NET, on the Project menu, click Add Web User Control, and then click Open in the resultant dialog box.
In Solution Explorer, double-click the default Web Form.
Add a Button control to the Designer.
Add your Web User control to the Designer.
View the code-behind class for your Web Form.

Note There is a declaration for the Button control, but not for the Web User control in the class declaration.