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RouteEventDemoB.xaml.cs
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RouteEventDemoB.xaml.cs
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using System;
using System.Collections.Generic;
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 wpfTestStudio
{
/// <summary>
/// RouteEventDemoB.xaml 的交互逻辑,
/// 将TextBlock拖到Label上
/// </summary>
public partial class RouteEventDemoB : UserControl
{
public RouteEventDemoB()
{
InitializeComponent();
}
private void source_MouseDown(object sender, MouseButtonEventArgs e)
{
TextBlock tb = (TextBlock)sender;
DragDrop.DoDragDrop(tb,tb.Text, DragDropEffects.Copy);
}
private void Label_Drop(object sender, DragEventArgs e)
{
((Label)sender).Content = e.Data.GetData(DataFormats.Text);
}
/// <summary>
/// 检查正在拖动的内容数据类型,确定所允许的操作类型
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Label_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
{
e.Effects = DragDropEffects.Copy;
}
else
{
e.Effects = DragDropEffects.None;
}
}
}
}