WPF 实现拖拽

效果

   <Grid>



        <Grid.ColumnDefinitions>



            <ColumnDefinition Width="197*"/>



            <ColumnDefinition Width="209*"/>



            <ColumnDefinition Width="111*"/>



        </Grid.ColumnDefinitions>



        <WrapPanel x:Name="accept" HorizontalAlignment="Left" Height="320" VerticalAlignment="Top" Width="207" Grid.Column="1" Margin="2,0,0,0" Background="#FFE7FFE5" Drop="WrapPanel_Drop" AllowDrop="True" />



        <WrapPanel x:Name="send" HorizontalAlignment="Left" Height="320" VerticalAlignment="Top" Width="197" Background="#FFFFEDCD" MouseLeftButtonDown="WrapPanel_MouseLeftButtonDown">



            <Label Content="Label1" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>



            <Label Content="Label2" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>



            <Label Content="Label3" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>



            <Label Content="Label4" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>



            <Label Content="Label5" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>



            <Label Content="Label6" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>



        </WrapPanel>







    </Grid>

     private void WrapPanel_Drop(object sender, DragEventArgs e)




        {







            var item = e.Data;



            object data = item.GetData(item.GetFormats()[0]);



            if (data is UIElement) 



            {



                send.Children.Remove(data as UIElement);



                accept.Children.Add(data as UIElement);



            }







        }







        private void WrapPanel_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)




        {



            object item = e.Source;



            if (item is UIElement) 



            {



                DragDrop.DoDragDrop(item as UIElement, item, DragDropEffects.Move);



            }



        }

accept 一方的控件 需要加上  AllowDrop="True" 允许接收drop的数据

WPF 精修篇 拖拽 DragDrop