CompositeDataBoundControl designer crashes VS2008

Andre Vianna

I'm building a very simple composite control and when use the designer to select a data source it crashes Visual Studio 2008. Here is the code:

namespace WebControlDesigner {
[ToolboxData("<{0}:ControlWithTasks runat=\"server\"></{0}:ControlWithTasks>")]
public class ControlWithTasks : CompositeDataBoundControl {

	public ControlWithTasks() : base() { }

	\[Category("Apearance")\]
	\[DefaultValue("Your Birthday")\]
	public string Prompt {
		get { return (string)ViewState\["Prompt"\] ?? "Your Birthday"; }
		set { ViewState\["Prompt"\] = value; }
	}

	\[Category("Data")\]
	\[Bindable(true)\]
	public DateTime Birthday {
		get { return (DateTime?)ViewState\["Birthday"\] ?? DateTime.Now; }
		set { ViewState\["Birthday"\] = value; }
	}

	protected override int CreateChildControls(IEnumerable pDataSource, bool pBinding) {
		base.CreateChildControls();

		Label vLabel = new Label();
		vLabel.Text = Prompt;
		vLabel.ForeColor = Color.Red;
		this.Controls.Add(vLabel);

		Literal vLiteral = new Literal();
		vLiteral.Text = ":&nbsp;";
		this.Controls.Add(vLiteral);

		TextBox vTextBox = new TextBox();
		vTextBox.ID = "TextBox1";
		vTextBox.Text = Birthday.ToString();
		this.Controls.Add(vTextBox);

		return 0;
	}
}

}

It's an extremely simple control, and builds without error. Here is the page that consumes it:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="WebControlDesigner" Namespace="WebControlDesigner" TagPrefix="wcd" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

It renders perfectly and display the designer menu correctly but if I create a data source or try to select a existing one it crashes VS2008. :omg: :confused: What is missing? Please!! I need some help.