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У меня есть набор данных, предназначенный для моего требования. Каждая строка datagrid состоит из 7 столбцов. Таблицы данных каждого столбца следующие.Выбор набора данных WPF
Column 1 - TextBox
Column 2 - ComboBox
Column 3 - TextBlock
Column 4 - TextBox
Column 5 - TextBox
Column 6 - TextBox
Column 7 - TextBlock
У меня есть обработчик событий для PreviewMouseLeftButtonDown в сетке, в которой я выбрать или отменить выбор щелкнул строку с помощью кода (переключая выбор). У меня есть кнопка в приложении. Когда эта кнопка нажата, я устанавливаю режим выбора файла данных на Microsoft.Windows.Controls.DataGridSelectionMode.Extended.
Все работает нормально до сих пор.
Но рассмотрите следующий сценарий.
Режим выбора данных - DataGridSelectionMode.Extended. Теперь я нажимаю на combobox, открывается его раскрывающееся меню, И когда я нажимаю на полосы прокрутки выпадающего списка выпадающих списков, все выбранные элементы datagrid деактивируются. В стеке вызовов показан, что это происходит в результате события, поднятого от DataGrids внутреннего метода
HandleSelectionForCellInput(
Microsoft.Windows.Controls.DataGridCell cell = {Microsoft.Windows.Controls.DataGridCell},
bool startDragging = true,
bool allowsExtendSelect = true,
bool allowsMinimalSelect = true
)
То, что показано в стеке вызовов показан ниже.
PresentationFramework.dll!System.Windows.Controls.SelectionChangedEventArgs.InvokeEventHandler(System.Delegate genericHandler, object genericTarget) + 0x31 bytes
PresentationCore.dll!System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate handler, object target) + 0x27 bytes
PresentationCore.dll!System.Windows.RoutedEventHandlerInfo.InvokeHandler(object target, System.Windows.RoutedEventArgs routedEventArgs) + 0x3e bytes
PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source = {Microsoft.Windows.Controls.DataGrid Items.Count:148}, System.Windows.RoutedEventArgs args = {System.Windows.Controls.SelectionChangedEventArgs}, bool reRaised = false) + 0x1bf bytes
PresentationCore.dll!System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject sender = {Microsoft.Windows.Controls.DataGrid Items.Count:148}, System.Windows.RoutedEventArgs args = {System.Windows.Controls.SelectionChangedEventArgs}) + 0x79 bytes
PresentationCore.dll!System.Windows.UIElement.RaiseEvent(System.Windows.RoutedEventArgs e) + 0x17 bytes
PresentationFramework.dll!System.Windows.Controls.Primitives.Selector.OnSelectionChanged(System.Windows.Controls.SelectionChangedEventArgs e) + 0x5 bytes
WPFToolkit.dll!Microsoft.Windows.Controls.DataGrid.OnSelectionChanged(System.Windows.Controls.SelectionChangedEventArgs e = {System.Windows.Controls.SelectionChangedEventArgs}) + 0x1ef bytes
PresentationFramework.dll!System.Windows.Controls.Primitives.Selector.InvokeSelectionChanged(System.Collections.Generic.List<object> unselectedItems, System.Collections.Generic.List<object> selectedItems) + 0x4c bytes
PresentationFramework.dll!System.Windows.Controls.Primitives.Selector.SelectionChanger.End() + 0xe1 bytes
PresentationFramework.dll!System.Windows.Controls.SelectedItemCollection.EndUpdateSelectedItems() + 0x3b bytes
PresentationFramework.dll!System.Windows.Controls.Primitives.MultiSelector.EndUpdateSelectedItems() + 0x30 bytes
WPFToolkit.dll!Microsoft.Windows.Controls.DataGrid.MakeFullRowSelection(object dataItem = {ePlace.PackageInfo}, bool allowsExtendSelect = true, bool allowsMinimalSelect = true) + 0x85a bytes
WPFToolkit.dll!Microsoft.Windows.Controls.DataGrid.HandleSelectionForCellInput(Microsoft.Windows.Controls.DataGridCell cell = {Microsoft.Windows.Controls.DataGridCell}, bool startDragging = true, bool allowsExtendSelect = true, bool allowsMinimalSelect = true) + 0x6b bytes
WPFToolkit.dll!Microsoft.Windows.Controls.DataGridCell.OnAnyMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e = {System.Windows.Input.MouseButtonEventArgs}) + 0x155 bytes
WPFToolkit.dll!Microsoft.Windows.Controls.DataGridCell.OnAnyMouseLeftButtonDownThunk(object sender = {Microsoft.Windows.Controls.DataGridCell}, System.Windows.Input.MouseButtonEventArgs e = {System.Windows.Input.MouseButtonEventArgs}) + 0x4f bytes
PresentationCore.dll!System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(System.Delegate genericHandler, object genericTarget) + 0x31 bytes
PresentationCore.dll!System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate handler, object target) + 0x27 bytes
PresentationCore.dll!System.Windows.RoutedEventHandlerInfo.InvokeHandler(object target, System.Windows.RoutedEventArgs routedEventArgs) + 0x3e bytes
PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source = {Microsoft.Windows.Controls.DataGridCell}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, bool reRaised = true) + 0x1bf bytes
PresentationCore.dll!System.Windows.UIElement.ReRaiseEventAs(System.Windows.DependencyObject sender = {Microsoft.Windows.Controls.DataGridCell}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, System.Windows.RoutedEvent newEvent) + 0x10a bytes
PresentationCore.dll!System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(System.Windows.DependencyObject sender, System.Windows.Input.MouseButtonEventArgs e) + 0x2e bytes
PresentationCore.dll!System.Windows.UIElement.OnMouseDownThunk(object sender, System.Windows.Input.MouseButtonEventArgs e) + 0xde bytes
PresentationCore.dll!System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(System.Delegate genericHandler, object genericTarget) + 0x31 bytes
PresentationCore.dll!System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate handler, object target) + 0x27 bytes
PresentationCore.dll!System.Windows.RoutedEventHandlerInfo.InvokeHandler(object target, System.Windows.RoutedEventArgs routedEventArgs) + 0x3e bytes
PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source = {System.Windows.Controls.TextBlock}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, bool reRaised = false) + 0x1bf bytes
PresentationCore.dll!System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject sender = {System.Windows.Controls.TextBlock}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}) + 0x79 bytes
PresentationCore.dll!System.Windows.UIElement.RaiseEvent(System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, bool trusted) + 0x35 bytes
PresentationCore.dll!System.Windows.Input.InputManager.ProcessStagingArea() + 0x311 bytes
PresentationCore.dll!System.Windows.Input.InputManager.ProcessInput(System.Windows.Input.InputEventArgs input) + 0x42 bytes
PresentationCore.dll!System.Windows.Input.InputProviderSite.ReportInput(System.Windows.Input.InputReport inputReport) + 0x62 bytes
PresentationCore.dll!System.Windows.Interop.HwndMouseInputProvider.ReportInput(System.IntPtr hwnd, System.Windows.Input.InputMode mode, int timestamp, System.Windows.Input.RawMouseActions actions, int x, int y, int wheel) + 0x2e2 bytes
PresentationCore.dll!System.Windows.Interop.HwndMouseInputProvider.FilterMessage(System.IntPtr hwnd = 2819506, int msg = 513, System.IntPtr wParam = 1, System.IntPtr lParam = 45155482, ref bool handled = false) + 0x4e1 bytes
PresentationCore.dll!System.Windows.Interop.HwndSource.InputFilterMessage(System.IntPtr hwnd = 2819506, int msg = 513, System.IntPtr wParam = 1, System.IntPtr lParam = 45155482, ref bool handled = false) + 0x75 bytes
WindowsBase.dll!MS.Win32.HwndWrapper.WndProc(System.IntPtr hwnd = 2819506, int msg = 513, System.IntPtr wParam = 1, System.IntPtr lParam = 45155482, ref bool handled = false) + 0xbe bytes
WindowsBase.dll!MS.Win32.HwndSubclass.DispatcherCallbackOperation(object o) + 0x7a bytes
WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate callback = {Method = {System.Object DispatcherCallbackOperation(System.Object)}}, object args = {MS.Win32.HwndSubclass.DispatcherOperationCallbackParameter}, bool isSingleParameter = true) + 0x8a bytes
WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.TryCatchWhen(object source = {System.Windows.Threading.Dispatcher}, System.Delegate callback, object args, bool isSingleParameter, System.Delegate catchHandler = null) + 0x4a bytes
WindowsBase.dll!System.Windows.Threading.Dispatcher.WrappedInvoke(System.Delegate callback, object args, bool isSingleParameter, System.Delegate catchHandler) + 0x44 bytes
WindowsBase.dll!System.Windows.Threading.Dispatcher.InvokeImpl(System.Windows.Threading.DispatcherPriority priority, System.TimeSpan timeout, System.Delegate method, object args, bool isSingleParameter) + 0x91 bytes
WindowsBase.dll!System.Windows.Threading.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority priority, System.Delegate method, object arg) + 0x40 bytes
WindowsBase.dll!MS.Win32.HwndSubclass.SubclassWndProc(System.IntPtr hwnd = 2819506, int msg = 513, System.IntPtr wParam = 1, System.IntPtr lParam = 45155482) + 0xdc bytes
[Native to Managed Transition]
[Managed to Native Transition]
WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame frame = {System.Windows.Threading.DispatcherFrame}) + 0xc7 bytes
WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame frame) + 0x49 bytes
WindowsBase.dll!System.Windows.Threading.Dispatcher.Run() + 0x4c bytes
PresentationFramework.dll!System.Windows.Application.RunDispatcher(object ignore) + 0x1e bytes
PresentationFramework.dll!System.Windows.Application.RunInternal(System.Windows.Window window) + 0x6f bytes
PresentationFramework.dll!System.Windows.Application.Run(System.Windows.Window window) + 0x26 bytes
PresentationFramework.dll!System.Windows.Application.Run() + 0x19 bytes
ePlace.exe!ePlace.App.Main() + 0x5e bytes C#
[Native to Managed Transition]
[Managed to Native Transition]
mscorlib.dll!System.AppDomain.ExecuteAssembly(string assemblyFile, System.Security.Policy.Evidence assemblySecurity, string[] args) + 0x3a bytes
Microsoft.VisualStudio.HostingProcess.Utilities.dll!Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() + 0x2b bytes
mscorlib.dll!System.Threading.ThreadHelper.ThreadStart_Context(object state) + 0x66 bytes
mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) + 0x6f bytes
mscorlib.dll!System.Threading.ThreadHelper.ThreadStart() + 0x44 bytes
Теперь я хотел бы избежать этого внутреннего вызова для выбора из datagrid. Есть ли способ сделать это?