5
때때로 treeviewitem을 마우스 오른쪽 단추로 클릭하면 처리되지 않은 InvalidOperationException이 발생합니다. 코드 뒤에서 오른쪽 클릭 된 행을 선택하십시오.클릭 트리에서 'System.Windows.Documents.Run'이 (가) Visual 또는 Visual3D의 InvalidOperationException이 아닌 이유입니다.
static TreeViewItem VisualUpwardSearch(DependencyObject source)
{
while (source != null && !(source is TreeViewItem))
source = VisualTreeHelper.GetParent(source);
return source as TreeViewItem;
}
private void OnPreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
TreeViewItem treeViewItem = VisualUpwardSearch(e.OriginalSource as DependencyObject);
if (treeViewItem != null)
{
treeViewItem.Focus();
e.Handled = true;
}
}
위의 stacktrace에 따르면 문제의 원인은 다음과 같습니다.
XAML :
<UserControl.Resources>
<HierarchicalDataTemplate ItemsSource="{Binding ClassesItemsSource}" DataType="{x:Type pnls:FavoriteObjectTableViewModel}">
<StackPanel Orientation="Horizontal">
<Image Source="{Binding Converter={StaticResource nameToBitmapSource}}" DataContext="{Binding Bitmap}" />
<Label Content="{Binding TableName}"/>
</StackPanel>
</HierarchicalDataTemplate>
<DataTemplate DataType="{x:Type pnls:FavoriteObjectClassViewModel}">
<StackPanel Orientation="Horizontal">
<Image Source="{Binding Bitmap, Converter={StaticResource UriToCachedImageConverter}}"/>
<Label Content="{Binding ClassName}"/>
</StackPanel>
</DataTemplate>
</UserControl.Resources>
<TreeView Name="Insert_ObjectTreeIE" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" ItemsSource="{Binding TablesItemsSource}">
<TreeView.ItemContainerStyle>
<Style TargetType="TreeViewItem">
<Setter Property="IsSelected" Value="{Binding IsSelected}" />
<Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" />
<EventSetter Event="PreviewMouseRightButtonDown" Handler="OnPreviewMouseRightButtonDown"></EventSetter>
<EventSetter Event="MouseDoubleClick" Handler="OnMouseDoubleClick" />
</Style>
</TreeView.ItemContainerStyle>
</TreeView>
스택 트레이스 :
e.StackTrace " at MS.Internal.Media.VisualTreeUtils.AsVisual(DependencyObject element, Visual& visual, Visual3D& visual3D)\r\n
at MS.Internal.Media.VisualTreeUtils.AsNonNullVisual(DependencyObject element, Visual& visual, Visual3D& visual3D)\r\n
at System.Windows.Media.VisualTreeHelper.GetParent(DependencyObject reference)\r\n
at Tekla.Nis.Application.Shared.UI.Panels.FavoriteObjectsView.VisualUpwardSearch(DependencyObject source) in c:\\XXX\\161wpf\\src\\SharedAppFeature\\Panels\\FavoriteObjectsView.xaml.cs:line 45\r\n
at Application.Shared.UI.Panels.FavoriteObjectsView.OnPreviewMouseRightButtonDown(Object sender, MouseButtonEventArgs e) in c:\\XXX\\161wpf\\src\\NisSharedAppFeature\\Panels\\FavoriteObjectsView.xaml.cs:line 52\r\n
at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)\r\n
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)\r\n
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)\r\n
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)\r\n
at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)\r\n
at System.Windows.UIElement.OnPreviewMouseDownThunk(Object sender, MouseButtonEventArgs e)\r\n
at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)\r\n
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)\r\n at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)\r\n
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)\r\n
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)\r\n at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)\r\n
at System.Windows.Input.InputManager.ProcessStagingArea()\r\n
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)\r\n
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)\r\n
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)\r\n
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)\r\n
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)\r\n
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)\r\n
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)\r\n
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)\r\n
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)\r\n
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)\r\n
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)\r\n
at System.Windows.Application.RunDispatcher(Object ignore)\r\n
at System.Windows.Application.RunInternal(Window window)\r\n
at System.Windows.Application.Run(Window window)\r\n
at System.Windows.Application.Run()\r\n at "my application start location"
나는 단지 가끔이 문제를 재현 할 수 있습니다. 제 동료는 왼쪽 클릭 항목 1과 오른쪽 클릭 항목 2가 특정 트리에서 매번 이것을 생성한다고 말했습니다.
'Run'은 비주얼이 아니며 별도의 처리가 필요합니다. 'VisualUpwardSearch (DependencyObject로서의 e.Source);'가 이미 당신을 위해 그것을 수정 했습니까? 또한 : 이미지를 표시하지 않고 라벨을 클릭하여 재현해야합니다! –
나는 이미지가 아니라 텍스트 상자를 클릭하지만 지금은 몇 분 동안 클릭하고 그것을 재현 할 수 없다. 그래서이 변화가 차이를 가져올 지 모르겠습니다. –
더하기 e.Source로 변경하면 항목 부모가 –