Hugo Estrada's House of Wonder

I have been working on a silverlight project recently, so I got a lot of little nibbles of wisdom on this technology. Unfortunately I am very busy for the next few weeks, so I won't get to share them with readership, which mainly consists of myself (and as a reader, I just love the good quantities of great tips and information this blog provides to me.).

In any case, the weird silverlight issue of the moment:

I am working on a custom control, and then, after I did something to it, the design mode breaks. The behavior of the control is fine while I am running it; it just messes design mode big time. And it gives me an error about how the instance couldn't be created. Searching for the error message is fruitless since it seems that many things can happen to make xaml choke.

Then the message told me about how I should search at some Key Value stuff. I look towards the end of the main error, and this is what I get:

HtmlPage_NotEnabled

Which happens when you are calling on the Browser object, such as when you need to get the root url of the site.

The solution is to use the following check:

  using System.ComponentModel;
 
            if (!DesignerProperties.GetIsInDesignMode(this))
                PopulateTree();

For the full explanation, go to the site below. Thanks, Andy :)
http://www.andybeaulieu.com/Home/tabid/67/BlogDate/2009-06-30/Default.aspx