[Mono-bugs] [Bug 434538] New: Invalid cast in PasteBoard.Types

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=434538


           Summary: Invalid cast in PasteBoard.Types
           Product: Cocoa#
           Version: unspecified
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Major
          Priority: P5 - None
         Component: Bindings.
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: ultraviolet7 at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: Development


Created an attachment (id=244967)
 --> (https://bugzilla.novell.com/attachment.cgi?id=244967)
Patch + Repo Sample

Using the attached sample program, dragging a file from Finder into the main
window of the test application will throw an error (below).  This caused by a
Cocoa.String and Cocoa.String[] being cast a System.String and System.String[]
respectively.  Attached is a patch for this error along with the update to the
documentation as this affects a public interface.

The "DragNDrop" sample in the sample folder does not function properly so I
also recommend considering replacing it with attached sample (or I can look
into fixing "DragNDrop").


Unhandled Exception: System.Reflection.TargetInvocationException: Exception has
been thrown by the target of an invocation. --->
System.Reflection.TargetInvocationException: Exception has been thrown by the
target of an invocation. ---> System.InvalidCastException: Cannot cast from
source type to destination type.
  at Cocoa.Pasteboard.ListForType (System.String type) [0x00000]
  at devoc.MyView.ValidateDrag (Cocoa.DragDestination sender) [0x00000]
  at devoc.MyView.DraggingEntered (Cocoa.DragDestination sender) [0x00000]
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke
(object,object[])
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags
invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,
System.Globalization.CultureInfo culture) [0x00000] --- End of inner exception
stack trace ---

  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags
invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,
System.Globalization.CultureInfo culture) [0x00000]
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[]
parameters) [0x00000]
  at Cocoa.ObjCInterop.Dispatch (IntPtr objc_class_ptr, IntPtr objc_selector,
System.Object[] arguments) [0x00000]
  at 45ff5f94-7d1a-4405-a90a-faba59dda100.Dispatch (IntPtr , IntPtr , IntPtr )
[0x00000]
  at (wrapper native-to-managed) 45ff5f94-7d1a-4405-a90a-faba59dda100:Dispatch
(intptr,intptr,intptr)
  at (wrapper managed-to-native)
System.Void_System.IntPtr_System.IntPtr:objc_msgSend (intptr,intptr)
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke
(object,object[])
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags
invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,
System.Globalization.CultureInfo culture) [0x00000] --- End of inner exception
stack trace ---

  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags
invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,
System.Globalization.CultureInfo culture) [0x00000]
  at System.MonoType.InvokeMember (System.String name, BindingFlags invokeAttr,
System.Reflection.Binder binder, System.Object target, System.Object[] args,
System.Reflection.ParameterModifier[] modifiers,
System.Globalization.CultureInfo culture, System.String[] namedParameters)
[0x00000]
  at System.Type.InvokeMember (System.String name, BindingFlags invokeAttr,
System.Reflection.Binder binder, System.Object target, System.Object[] args)
[0x00000]
  at Cocoa.ObjCMessaging.objc_msgSend (IntPtr receiver, System.String selector,
System.Type rettype) [0x00000]
  at Cocoa.Application.RunApplication () [0x00000]
  at Cocoa.Application.Run () [0x00000]
  at MyProgram.Program.Main (System.String[] args) [0x00000]


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