это было то, что мне приходилось делать снова и снова, поэтому я решил расширить элемент управления ListView и добавил события ItemKeyDown, ItemKeyUp и ItemDoubleClick, которые запускаются там, где происходят эти события, когда элемент в ListView находится в фокусе. ListView является производным от ListBox, поэтому вы сможете довольно легко его перенести.
/ Fx / ListView.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Controls;
namespace Fx
{
public static class Func
{
/// <summary>
/// Finds a specific type of parent up the visual tree.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dep"></param>
/// <returns></returns>
public static T FindParent<T>(this object obj)
{
DependencyObject dep = obj as DependencyObject;
while ((dep != null) && !(dep is T))
{
dep = VisualTreeHelper.GetParent(dep);
}
return (dep != null) ? (T)Convert.ChangeType(dep, typeof(T)) : default(T);
}
}
public class ListView:System.Windows.Controls.ListView
{
#region public event KeyboardEventHandler ItemKeyDown;
/// <summary>
/// Occurs when a key is pressed when a ListViewItem in this
/// ListView is in focus.
/// </summary>
public event KeyEventHandler ItemKeyDown;
/// <summary>
/// Raises the ItemKeyDown event for a ListViewitem in this ListView.
/// </summary>
/// <param name="item"></param>
/// <param name="e"></param>
public void OnItemKeyDown(ListViewItem item, KeyEventArgs e)
{
if (ItemKeyDown != null)
ItemKeyDown(item, e);
}
/// <summary>
/// Handle they KeyDown event on the ListView, find the related
/// ListViewItem and raise the ItemKeyDown event respectively.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ListView_KeyDown(object sender, KeyEventArgs e)
{
ListViewItem item = Func.FindParent<ListViewItem>(e.OriginalSource);
if (item != null)
OnItemKeyDown(item, e);
}
#endregion
#region public event KeyboardEventHandler ItemKeyUp;
/// <summary>
/// Occurs when a key is released when a ListViewItem in this
/// ListView is in focus.
/// </summary>
public event KeyEventHandler ItemKeyUp;
/// <summary>
/// Raises the ItemKeyUp event for a ListViewitem in this ListView.
/// </summary>
/// <param name="item"></param>
/// <param name="e"></param>
public void OnItemKeyUp(ListViewItem item, KeyEventArgs e)
{
if (ItemKeyUp != null)
ItemKeyUp(item, e);
}
/// <summary>
/// Handle they KeyUp event on the ListView, find the related
/// ListViewItem and raise the ItemKeyUp event respectively.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ListView_KeyUp(object sender, KeyEventArgs e)
{
ListViewItem item = Func.FindParent<ListViewItem>(e.OriginalSource);
if (item != null)
OnItemKeyUp(item, e);
}
#endregion
#region public event MouseButtonEventHandler ItemDoubleClick;
/// <summary>
/// Occurs when a ListViewItem in this Listview is double clicked.
/// </summary>
public event MouseButtonEventHandler ItemDoubleClick;
/// <summary>
/// Raise the ItemDoubleClick event for a ListViewItem.
/// </summary>
/// <param name="item"></param>
/// <param name="e"></param>
public void OnItemDoubleClick(ListViewItem item, MouseButtonEventArgs e)
{
if (ItemDoubleClick != null)
ItemDoubleClick(item, e);
}
/// <summary>
/// Handle the MouseDoubleClick event for the ListView, find the related
/// ListViewItem and raise the ItemDoubleClick event respectively.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ListView_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
ListViewItem item = Func.FindParent<ListViewItem>(e.OriginalSource);
if (item != null)
OnItemDoubleClick(item, e);
}
#endregion
public ListView()
{
MouseDoubleClick += new MouseButtonEventHandler(ListView_MouseDoubleClick);
KeyDown += new KeyEventHandler(ListView_KeyDown);
KeyUp += new KeyEventHandler(ListView_KeyUp);
}
}
}
Теперь, чтобы использовать это ...
/ Страницы / EmployeesPage.xaml
<UserControl x:Class="TestApp.Pages.EmployeesPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:fx="clr-namespace:Fx"
Width="800" Height="450">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="300" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0">
<TextBlock Text="List Items" FontWeight="Bold" FontSize="18" />
<!-- here is the main part -->
<fx:ListView x:Name="EmployeesList" ItemDoubleClick="EmployeesList_ItemDoubleClick" ItemKeyDown="EmployeesList_ItemKeyDown" />
<!-- main part ends here -->
</StackPanel>
</Grid>
</UserControl>
/ Страницы / EmployeesPage.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace TestApp.Pages
{
/// <summary>
/// Interaction logic for EmployeesPage.xaml
/// </summary>
public partial class EmployeesPage : UserControl
{
public EmployeesPage()
{
InitializeComponent();
// Fill the ListView with data...
// EmployeesList.ItemsSource = SomeObservableCollectionOrDataSource
}
private void EmployeesList_ItemDoubleClick(object sender, MouseButtonEventArgs e)
{
MessageBox.Show("an item was double clicked");
ListViewItem item = sender as ListViewItem;
// entityType obj = item.DataContext as entityType
// you can begin editing here
}
private void EmployeesList_ItemKeyDown(object sender, KeyEventArgs e)
{
MessageBox.Show(e.Key.ToString() + " key was pressed on an item");
ListViewItem item = sender as ListViewItem;
// entityType obj = item.DataContext as entityType
if (e.Key == Key.F2)
{
// begin editing here
}
else if (e.Key == Key.Enter)
{
// end editing here
}
else if (e.Key == Key.Escape)
{
// cancel editing here
}
}
}
}
Надеюсь, это хоть как-то пригодится тебе ... Удачи.