When deploying a Silverlight application we ran into problems a WCF web-service, to find out what the problem was I wanted to invoke the method. Microsoft shipped an application for invoking methods from your Windows PC (WCFtestclient.exe). The following steps explain how to use WCFtestclient.exe. First startup Visual Studio 2008 Command Prompt. In the command prompt type wcftestclient, the application will startup. Now we need to add the Service. Click File and Add Service.   Add the URL to your service in the pop-up More Info »

When deploying a WCF webservice for a Silverligh application I got the following error: An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.InvalidOperationException: An exception was thrown in a call to a WSDL export extension: System.ServiceModel.Description.DataContractSerializerOperationBehavior  contract: <a href="http://tempuri.org/:IWebService">http://tempuri.org/:IWebService</a> —-> System.Runtime.Serialization.InvalidDataContractException: Type 'Project.service.HU_BACH.ScPlacemark' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. As you can see from the error you need to add the [Serializable] attribute to all objects More Info »

When attaching to a process for debug Silverligh you need to remember that Silverlight is Client-side code. So attach to IExplorer.exe, FireFox.exe or what ever browser your using. Cheers, Pieter

When I tried to run a my Silverlight App on IIS7 I got the following error: [code:html] Microsoft JScript runtime error: Sys.InvalidOperationException: InitializeError error #2104 in control 'Xaml1': Could not download the Silverlight application. Check web server settings [/code] The solution for this problem is adding .XAP file extension to your IIS MIME Types. The MIME type is application/x-silverlight-app. If you don't know what a MIME Type is read this post.

First the presentation on the Microsoft MIX 2008 and now the front page of .Net magazine with the Ulab Silverlight project!! You can download and read the article here (dutch): Ulab_NETmagazine220908.pdf (3.26 mb) Or you can read this post of Micheal Wolbert (my fellow speaker).

I just tried to install the VS2008 SilverlightTools Alpha, but I immediatly ran in to an error. The installation couldn’t start beacause VS2008 was not installed. This suprised me because I just installed thirty minutes before. A some searching I found out that I needed to install the Visual Web Developer. You can install this by running the VS2008 setup again an choose to add features. Now the Silverlight tools setup runs flawless.