Reorder DataGrid/ListBox Items with Drag and Drop Wpf

• Download Reorder_item_WPF-noexe.zip - 74.5 KB
• Download Reorder_item_WPF.zip - 74.5 KB

Introduction

Drag and Drop usually ameliorate our project spacially on terme of use and simplicity. 

Using the code

First of all , you need to add to the reference the dll GongSolutions.Wpf.DragDrop , it is already unclude on the Project after you downoad it.

Then we add the path of this dll in our MainPage.

 xmlns:dd="clr-namespace:GongSolutions.Wpf.DragDrop;assembly=GongSolutions.Wpf.DragDrop"

After we create our ListBox or DataGrid , we add  attributes dd:DragDrop.IsDragSource and  dd:DragDrop.IsDropTarget="True".

<ListBox Grid.Column="1" SelectionMode="Extended" ItemsSource="{Binding MSPCollection}"
 dd:DragDrop.IsDragSource="True" Width="300" Margin="0,0,5,0" dd:DragDrop.IsDropTarget="True">
...

After We Bind a List of Object to this Listbox we add two method DragOver and Drop.

Ps: You class should inherit the interface IDropTarget.

void IDropTarget.DragOver(DropInfo dropInfo)
       {

       }

void IDropTarget.Drop(DropInfo dropInfo)
       {

       }

History

Download this simple example to get the full project ;)