Type Initializer Error

I think your Silverlight run time is too old.  This interface was moved from Controls.Data into (I think) System.ComponentModel in RTM of Silverlight.

 

Sergey Barskiy

Principal Consultant

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I am making progress in getting a prototype of my application to use Silverlight and am basing it on the Rolodex example, but it is a slow process :(.  Currently I am getting a type initializer error after I go into the login screen and get to the following code:

BASIdentity.GetIdentity(username, password, (o, e) =>
{
   if (e.Object == null)
   {
      SetPrincipal(BASIdentity.UnauthenticatedIdentity());
   }
   else
   {
      SetPrincipal(e.Object);
   }
   completed(null, EventArgs.Empty);
});

This code is in my BASPrincipal.cs module and here is the exception message generated:
System.TypeInitializationException was unhandled by user code
  Message="The type initializer for 'BAS.Business.Security.BASIdentity' threw an exception."
  TypeName="BAS.Business.Security.BASIdentity"
  StackTrace:
       at BAS.Business.Security.BASIdentity.GetIdentity(String username, String password, EventHandler`1 completed)
       at BAS.Business.Security.BASPrincipal.Login(String username, String password, EventHandler`1 completed)
       at BAS.LoginControl.LogInButton_Click(Object sender, RoutedEventArgs e)
       at System.Windows.Controls.Primitives.ButtonBase.OnClick()
       at System.Windows.Controls.Button.OnClick()
       at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
       at System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)
       at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)
  InnerException: System.TypeLoadException
       Message="Could not load type 'System.Windows.Controls.IEditableObject' from assembly 'System.Windows.Controls.Data, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'."
       StackTrace:
            at Csla.Core.FieldManager.PropertyInfoManager.get_PropertyInfoCache()
            at Csla.Core.FieldManager.PropertyInfoManager.GetPropertyListCache(Type objectType)
            at Csla.Core.FieldManager.PropertyInfoManager.RegisterProperty[T](Type objectType, PropertyInfo`1 info)
            at Csla.ReadOnlyBase`1.RegisterProperty[P](PropertyInfo`1 info)
            at BAS.Business.Security.BASIdentity..cctor()
       InnerException:

The code for BASIdentity looks correct and was based on the RolodexIdentity code so I am a bit puzzeled.  It is probably something simple, but being new to Silverlight, there are a lot of gotchas and I think I am finding all of them.

Thank you,

Keith