XtraReport 动态报表Multi参数 查询一次后,再次双击参数报错 System.NullReferenceException: 未将对象引用设置到对象的实例。 在 DevExpress.Xpf.Editors.Internal.TokenEditor.ProcessGotFocus(KeyboardFocusChangedEventArgs e) 在 DevExpress.Xpf.Editors.Internal.TokenEditor.OnGotKeyboardFocus(KeyboardFocusChangedEventArgs e) 在 System.Windows.UIElement.OnGotKeyboardFocusThunk(Object sender, KeyboardFocusChangedEventArgs e) 在 System.Windows.Input.KeyboardFocusChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) 在 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) 在 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) 在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) 在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) 在 System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args) 在 System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted) 在 System.Windows.Input.InputManager.ProcessStagingArea() 在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) 在 System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp) 在 System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed) 在 System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed) 在 System.Windows.Input.KeyboardDevice.Focus(IInputElement element) 在 System.Windows.UIElement.Focus() 在 DevExpress.Xpf.Editors.BaseEdit.FocusEditCore() 在 DevExpress.Xpf.Editors.BaseEdit.ProcessFocusEditCore(MouseButtonEventArgs e) 在 DevExpress.Xpf.Editors.BaseEdit.OnPreviewMouseDown(MouseButtonEventArgs e) 在 System.Windows.UIElement.OnPreviewMouseDownThunk(Object sender, MouseButtonEventArgs e) 在 System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) 在 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) 在 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) 在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) 在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) 在 System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args) 在 System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted) 在 System.Windows.Input.InputManager.ProcessStagingArea() 在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) 在 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport) 在 System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel) 在 System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) 在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) 在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)