C#学习教程：WPFDatagrid“全选”按钮–“全部取消选择”？分享

好好经过大量搜索后我发现了怎么做到了Colin Eberhardt的按钮，这里：

在附加行为的控件模板中设置难以触及的元素

然后我在他的类中扩展了“Grid_Loaded”方法，为按钮添加了一个事件处理程序，但是请记住首先删除默认的“Select All”命令（否则，在运行我们添加的事件处理程序之后，命令就会运行）。

/// 
 /// Handles the DataGrid's Loaded event. /// 
 /// Sender object. /// Event args. private static void Grid_Loaded(object sender, RoutedEventArgs e) { DataGrid grid = sender as DataGrid; DependencyObject dep = grid; // Navigate down the visual tree to the button while (!(dep is Button)) { dep = VisualTreeHelper.GetChild(dep, 0); } Button button = dep as Button; // apply our new template ControlTemplate template = GetSelectAllButtonTemplate(grid); button.Template = template; button.Command = null; button.Click += new RoutedEventHandler(SelectAllClicked); } /// 
 /// Handles the DataGrid's select all button's click event. /// 
 /// Sender object. /// Event args. private static void SelectAllClicked(object sender, RoutedEventArgs e) { Button button = sender as Button; DependencyObject dep = button; // Navigate up the visual tree to the grid while (!(dep is DataGrid)) { dep = VisualTreeHelper.GetParent(dep); } DataGrid grid = dep as DataGrid; if (grid.SelectedItems.Count