WPF DragDrop drag finishing papers

Original: WPF DragDrop drag finishing papers

WPF realize drag

effect

  
  
<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 one control need to add AllowDrop = "True" allows the drop of the received data