- 新建一个WP项目，命名为contextmenu,然后往界面拖入一个ListBox控件listBox1,接着切换到XAML代码界面设置其属性，代码如下
<ListBox Height="437" HorizontalAlignment="Left" Margin="10,119,0,0" Name="listBox1" VerticalAlignment="Top" Width="460" ItemsSource="{Binding}" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock FontSize="40" Text="{Binding MyName}"/>
<TextBlock FontSize="40" Text="{Binding Company}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
2.设置好上述属性后，在<TextBlock FontSize="40" Text="{Binding Company}"/>下边拖放上下文控件ContextMenu，完整代码如下：
<ListBox Height="437" HorizontalAlignment="Left" Margin="10,119,0,0" Name="listBox1" VerticalAlignment="Top" Width="460" ItemsSource="{Binding}" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock FontSize="40" Text="{Binding MyName}"/>
<TextBlock FontSize="40" Text="{Binding Company}"/>
<toolkit:ContextMenuService.ContextMenu>
<toolkit:ContextMenu>
<toolkit:MenuItem Header="变色" Click="MenuItem_Click"/>
<toolkit:MenuItem Header="删除" Click="MenuItem_Click"/>
<toolkit:MenuItem Header="全部删除" Click="MenuItem_Click"/>
</toolkit:ContextMenu>
</toolkit:ContextMenuService.ContextMenu>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
3.切换到.CS后台代码，加入命名空间的引用：using System.Collections.ObjectModel;
4.本例的完整后台C#代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using System.Collections.ObjectModel; namespace contextmenu
{
public partial class MainPage : PhoneApplicationPage
{
ObservableCollection<Person> personlist = new ObservableCollection<Person>();
Person selectperson = null;
// 构造函数
public MainPage()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainPage_Loaded);
} void MainPage_Loaded(object sender, RoutedEventArgs e)
{
//throw new NotImplementedException();
personlist.Add(new Person() { MyName = "张三", Company = "某某有限公司" });
personlist.Add(new Person() { MyName = "有健", Company = "天津有限公司" });
personlist.Add(new Person() { MyName = "奉沈", Company = "广西有限公司" });
personlist.Add(new Person() { MyName = "李四", Company = "无名有限公司" });
personlist.Add(new Person() { MyName = "王五", Company = "王某有限公司" });
personlist.Add(new Person() { MyName = "小明", Company = "小明有限公司" });
listBox1.ItemsSource = personlist;
} private void MenuItem_Click(object sender, RoutedEventArgs e)
{
MenuItem menu = (MenuItem)sender;
string header = (sender as MenuItem).Header.ToString();
ListBoxItem selectlistitem = this.listBox1.ItemContainerGenerator.ContainerFromItem((sender as MenuItem).DataContext) as ListBoxItem;
if (selectlistitem == null)
{
return;
}
//判断选择的是哪一项
if (menu.Header.ToString() == "变色")
{
selectlistitem.Background = new SolidColorBrush(Colors.Green);
}
//以下删除操作有一个问题，好像并不能把选中项删除
else if (menu.Header.ToString() == "删除")
{
selectperson = listBox1.SelectedItem as Person;
if (selectperson == null)
{
MessageBox.Show("请先选择一个选项再进行删除！");
}
else
{
selectperson = (sender as Person);
personlist.Remove(selectperson);
listBox1.ItemsSource = personlist;
}
}
else if (menu.Header.ToString() == "全部删除")
{
personlist.Clear();
listBox1.ItemsSource = personlist;
}
}
}
//定义联系人信息的类
public class Person
{
public string MyName
{
get;
set;
}
public string Company
{
get;
set;
}
}
}