SimpleApp (WP7) Problem: NotSupportedException thrown at BeginSave

bill.mybiz posted on Wednesday, August 24, 2011

Howdy There!

I'm a CSLA newbie/hobbyist programmer and I'm having a slight difficulty! (Go figure! )

I'm having a problem with getting the windows phone version of SimpleApp to run properly. When I debug the solution, it compiles and deploys to the Windows Phone emulator fine.  I type any string in the name textbox ("butters" e.g.) and then choose save.  This then throws a NotSupportedException (message: "Invalid operation - insert not allowed") at CustomerEdit.BeginSave(forceUpdate,handler,userState). The full exception message is appended to this post.

Here is some possibly useful information:

• I am using Visual Studio 2010 Express for Windows Phone, without a full version of Visual Studio (professional or higher) installed.

• The specific sample is located in the "CslaSamples-4.1.0-110118" download, "\Samples\WindowsPhone\cs\SimpleApp".

• I'm learning CSLA on a budget - I've read the overview cover-to-cover.  Hopefully will get the Business Objects soon(!!)

• Other Silverlight SimpleApp does compile and run fine.
• Express Edition restricts me from running some of the other samples, but I've looked through as much as I can (and am continuing to do so).
• I've redownloaded the sample, as well as tried the 4.2.0 version with the same result.
• I'm using Windows 7 Home Premium (64-bit)
• I'm trying to use this wp7 SimpleApp to learn from, but I just can't seem to figure out why it won't work.  In the CustomerEdit class's Data Access region, there is a compiler condition #if !SILVERLIGHT, but there is no code inside the Data Access region that does pertain to SILVERLIGHT.  Inside this !SILVERLIGHT block, there is a DataPortal_Insert method(), but there is no corresponding async version anywhere in the class...Is this right? 

Thanks in advance for any help anyone can provide!! I apologize if it's an obvious answer!  I've looked extensively through this forum and on google and I just can't find anyone else that has this problem, so I figure it must be my newbness. 

-Bill

Full Exception: ------------------

System.NotSupportedException was unhandled
  Message=Invalid operation - insert not allowed
  StackTrace:
       at Csla.BusinessBase`1.DataPortal_Insert(CompletedHandler handler)
       at System.Reflection.RuntimeMethodInfo.InternalInvoke(RuntimeMethodInfo rtmi, Object obj, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess, StackCrawlMark& stackMark)
       at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark)
       at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
       at Csla.Reflection.MethodCaller.CallMethod(Object obj, MethodInfo info, Object[] parameters)
       at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method, Object[] parameters)
       at Csla.DataPortalClient.LocalProxy`1.BeginUpdate(Object obj, Object userState)
       at Csla.DataPortal`1.BeginUpdate(Object obj, Object userState)
       at Csla.DataPortal.BeginUpdate[T](Object obj, EventHandler`1 callback, Object userState)
       at Csla.DataPortal.BeginUpdate[T](Object obj, EventHandler`1 callback)
       at Csla.BusinessBase`1.BeginSave(Boolean forceUpdate, EventHandler`1 handler, Object userState)
       at Library.CustomerEdit.BeginSave(Boolean forceUpdate, EventHandler`1 handler, Object userState)
       at Csla.BusinessBase`1.BeginSave()
       at Csla.BusinessBase`1.Csla.Core.ISavable.BeginSave()
       at Csla.Xaml.ViewModelBase`1.BeginSave()
       at Csla.Xaml.ViewModel`1.Save(Object sender, ExecuteEventArgs e)
       at System.Reflection.RuntimeMethodInfo.InternalInvoke(RuntimeMethodInfo rtmi, Object obj, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess, StackCrawlMark& stackMark)
       at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark)
       at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
       at Csla.Xaml.TriggerAction.CallMethod(Object sender, EventArgs 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)

bill.mybiz replied on Thursday, August 25, 2011

Well, I added the following code to the area beneath the !SILVERLIGHT directive in CustomerEdit.cs:

#region Data Access

#if !SILVERLIGHT
...
#endif
public override void  DataPortal_Insert(LocalProxy<CustomerEdit>.CompletedHandler handler)
    {
      try
      {
        System.Threading.Thread.Sleep(1500);

        using (BypassPropertyChecks)
        {
          Id = 987;
          Status = "Inserted " + ApplicationContext.ExecutionLocation.ToString();
        }

        handler(this, null);
      }
      catch (Exception ex)
      {
        handler(null, ex);
      }
    }
#endregion //DataAccess

That seemed to do the trick.  I was thinking there was some other problem with my environment that I just wasn't seeing but I think maybe the sample just isn't complete?  Any thoughts would be welcome!

RockfordLhotka replied on Thursday, August 25, 2011

I think this is a bug in the sample, yes. I'm glad you found the answer.

bill.mybiz replied on Thursday, August 25, 2011

I'm glad too!!!!  I'm loving CSLA so far!  Thanks for the superior product sir.

-Bill