Question of a DragDrop function error using GongSolution Library RRS feed

  • Question

  • I'm developing WPF application.

    And I implemented drag&drop function with GongSolution Library.

    It works well in most case, but sometimes when I drag a object the program is dead because of below exception.

    I tried to debugging, but it didn't reproduce often.

    Source: Application.Current.DispatcherUnhandledException System.Runtime.InteropServices.COMException (0x80004005): 8070000c 오류가 발생하여 작업을 완료할 수 없습니다.
       위치: MS.Win32.UnsafeNativeMethods.DoDragDrop(IDataObject dataObject, IOleDropSource dropSource, Int32 allowedEffects, Int32[] finalEffect)
       위치: System.Windows.OleServicesContext.OleDoDragDrop(IDataObject dataObject, IOleDropSource dropSource, Int32 allowedEffects, Int32[] finalEffect)
       위치: System.Windows.DragDrop.OleDoDragDrop(DependencyObject dragSource, DataObject dataObject, DragDropEffects allowedEffects)
       위치: System.Windows.DragDrop.DoDragDrop(DependencyObject dragSource, Object data, DragDropEffects allowedEffects)
       위치: GongSolutions.Wpf.DragDrop.DragDrop.DragSource_PreviewMouseMove(Object sender, MouseEventArgs e)
       위치: System.Windows.Input.MouseEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
       위치: System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       위치: System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
       위치: System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       위치: System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       위치: System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
       위치: System.Windows.Input.InputManager.ProcessStagingArea()
       위치: System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
       위치: System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
       위치: System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
       위치: System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       위치: System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       위치: MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       위치: MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       위치: System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
       위치: System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

    • Moved by Alex-KSGZ Friday, January 17, 2020 5:17 AM
    Thursday, January 16, 2020 8:07 AM

All replies

  • Hi,

    Your issue is more related about third party library.The  forum does not support it.

    Best Regards,


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    Friday, January 17, 2020 5:17 AM