62 lines
1.9 KiB
C#
62 lines
1.9 KiB
C#
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RoutedEvents: Drag And Drop
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<Window x:Class="RoutedEvents.DragAndDrop"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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Title="DragAndDrop" Height="350" Width="550">
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<StackPanel>
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<TextBox Padding="12" VerticalAlignment="Center" HorizontalAlignment="Center">Drag from this TextBox</TextBox>
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<Label Padding="12" Background="LightGoldenrodYellow" VerticalAlignment="Center" HorizontalAlignment="Center"
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MouseDown="lblSource_MouseDown">Or this Label</Label>
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<Label Background="LightGoldenrodYellow"
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VerticalAlignment="Center" HorizontalAlignment="Center" Padding="20"
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AllowDrop="True" Drop="lblTarget_Drop">To this Label</Label>
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</StackPanel>
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</Window>
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//File:Window.xaml.cs
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Shapes;
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namespace RoutedEvents
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{
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public partial class DragAndDrop : System.Windows.Window
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{
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public DragAndDrop()
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{
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InitializeComponent();
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}
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private void lblSource_MouseDown(object sender, MouseButtonEventArgs e)
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{
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Label lbl = (Label)sender;
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DragDrop.DoDragDrop(lbl, lbl.Content, DragDropEffects.Copy);
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}
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private void lblTarget_Drop(object sender, DragEventArgs e)
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{
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((Label)sender).Content = e.Data.GetData(DataFormats.Text);
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}
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private void lblTarget_DragEnter(object sender, DragEventArgs e)
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{
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if (e.Data.GetDataPresent(DataFormats.Text))
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e.Effects = DragDropEffects.Copy;
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else
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e.Effects = DragDropEffects.None;
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}
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}
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}
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