If you are hosting a control in the browser and have given it elevated permissions (we will use FullTrust for this example) you might notice that you are still getting security exceptions when you try to call protected APIs. Here's what is going on. When Internet Explorer creates an AppDomain to...

If you have a control hosted in the browser and you try to strong name it, you may find that it stops working. Looking at the IEHostLog ( http://blogs.msdn.com/andrewdownum/archive/2006/02/10/Using_DebugIEHost.aspx ) you might see something like this: Microsoft.IE.SecureFactory: System.Security.SecurityException...

Controls hosted in the browser can often be difficult to debug. If anything goes wrong with loading the dll or constructing the control instance, you will get nothing but the standard IE "something is wrong" image (the small icon in the top-left with colored shapes). Here's how I recommend diagnosing...

Earlier we talked about adding properties and methods to a managed control so that the page hosting the control can interact directly with the managed control programmatically. This time we will add events which is a little bit more difficult. To really understand how this works, you have to understand...

Now that we have a simple control hosted in the WebBrowser, it would be nice to be able to interact with it from the page. Using JavaScript, we can call methods on the managed control, and also get/set properties (which are essentially just method calls themselves). We'll expand our simple control...

Recently I have been hearing from more and more people who are embedding Windows Forms controls into webpages and I thought that I would put together a series of blog posts on this technique. Since the original release of .NET Windows Forms has supported hosting controls inside of a web browser (Internet...