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  • WPF实现拖拽功能

    技术点:WPF的Behaviors实现了对象的行为附加,Microsoft.Expression.Interactions程序集中包含了若干Behaviors,其中MouseDragElementBehavior可以实现对象拖拽行为的附加,从而实现对象的拖拽功能。

    代码如下:

    <Window
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
            xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
            xmlns:local="clr-namespace:WpfApp6"
            xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" x:Class="WpfApp6.MainWindow"
            mc:Ignorable="d"
            Title="MainWindow" Height="350" Width="525">
        <Grid>
            <Label Content="拖我" HorizontalAlignment="Left" Margin="138.762,47.137,0,0" VerticalAlignment="Top">
                <i:Interaction.Behaviors>
                    <ei:MouseDragElementBehavior/>
                </i:Interaction.Behaviors>
            </Label>
            <Label Content="拖我" HorizontalAlignment="Left" Margin="252.741,89.735,0,0" VerticalAlignment="Top">
                <i:Interaction.Behaviors>
                    <ei:MouseDragElementBehavior/>
                </i:Interaction.Behaviors>
            </Label>
            <Border BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Left" Height="22.862" Margin="59.322,159.513,0,0" VerticalAlignment="Top" Width="100">
                <i:Interaction.Behaviors>
                    <ei:MouseDragElementBehavior/>
                </i:Interaction.Behaviors>
            </Border>
            <Grid HorizontalAlignment="Left" Height="42.434" Margin="219.356,159.513,0,0" VerticalAlignment="Top" Width="111.513" Background="Black">
                <i:Interaction.Behaviors>
                    <ei:MouseDragElementBehavior/>
                </i:Interaction.Behaviors>
            </Grid>
            <Grid HorizontalAlignment="Left" Height="42.434" Margin="372.481,159.513,0,0" VerticalAlignment="Top" Width="111.513" Background="Black">
                <i:Interaction.Behaviors>
                    <ei:MouseDragElementBehavior/>
                </i:Interaction.Behaviors>
                <Button Content="Button拖不了" HorizontalAlignment="Left" VerticalAlignment="Top" Width="91.709" Foreground="Black" Margin="9.804,13.194,0,0" Background="White">
                </Button>
            </Grid>
        </Grid>
    </Window>
    

    运行效果:

     【代码

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  • 原文地址:https://www.cnblogs.com/zhaiyf/p/8446031.html
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