1privatevoidlistBox_MouseLeftButtonDown(objectsender, MouseButtonEventArgs e)2{3varelement =(FrameworkElement)sender;4if(e.ClickCount ==1)5{6vartimer =newSystem.Timers.Timer(500);7timer.AutoReset =false;8timer.Elapsed +=newElapsedEventHandler((o, ex) => element.Dispatcher.Invoke(newAction(()...
<Button Click="Click_EventHandler"/> </StackPanel> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. And an event that looks like this: private void ListBox_PreviewMouseDown(object sender, System.Windows.Input.MouseButtonEventArgs ...
I want the user to be able delete any of the dogs in the collection. In the past I've been doing this with a ListBox control and binding my ViewModel to the SelectedItem property. I then create a button with an event that removes the selected object from the ObservableCollection. This ...
System.Windows.Controls.ListViewItem GetListViewItemFromEvent(object sender, object originalSource) { DependencyObject depObj = originalSource as DependencyObject; if (depObj != null) { // go up the visual hierarchy until we find the list view item the click came from // the click might have be...
private void Button_Click(object sender, RoutedEventArgs e){ Button btn = sender as Button;RelativeSource rs = new RelativeSource(RelativeSourceMode.FindAncestor);rs.AncestorType=typeof(ListBoxItem);Binding binding = new Binding("Tag") { RelativeSource=rs};btn.SetBinding(Button....
在WPF(Windows Presentation Foundation)中,为ListBox控件添加点击事件可以通过多种方式实现,包括使用MouseDown事件、PreviewMouseDown事件、命令绑定(Command Binding)等。下面我将详细介绍如何使用这些方法来实现ListBox的点击事件。 1. 使用MouseDown事件 MouseDown事件在鼠标按下时触发。你可以直接在XAML中为ListBox添加MouseD...
Binding a command from ViewModel to an event within a UserControl Binding a DataTable to a DataGrid using two-way mode Binding a DependencyProperty to selectedItem of Combobox Binding a Dictionary<int, List<class>> to DataGrid Binding a FlowDocument to a RichTextBox in an MVVM project Binding...
按钮单击事件处理程序如下所示。单击此按钮,我们找到所选项目的索引并调用 ListBox.Items.RemoveAt 方法,如下所示。 privatevoidDeleteButton_Click(objectsender,RoutedEventArgse){listBox1.Items.RemoveAt(listBox1.Items.IndexOf(listBox1.SelectedItem));} ...
(System.Windows.RoutedEventArgs e){DependencyObject dep=(DependencyObject)e.OriginalSource;while((dep!=null)&&!(dep is ListBoxItem)){dep=VisualTreeHelper.GetParent(dep);}if(dep==null){return;}ListBoxItem item=(ListBoxItem)dep;if(item.IsSelected){item.IsSelected=!item.IsSelected;}base.On...
FontSize += 2; } } private void DecreaseFont_Click(object sender, RoutedEventArgs e) { if (textBox1.FontSize > 10) { textBox1.FontSize -= 2; } } } 运行演示: 6.2 工具条(ToolBar) 工具条用于为常用功能提供快捷入口并提供功能提示。 使用工具条要涉及两个类:ToolBarTray 和 ToolBar。