When using the WebDataTree™ drag and drop functionality, there are several server-side events that you can handle to perform your logic. The following code shows how you can handle the WebDataTree control’s serverNodeDropped event and access the event args:
In HTML:
<ig:WebDataTree ID="WebDataTree1" runat="server"
OnNodeDropped = "serverNodeDropped"
>
<Nodes>
<ig:DataTreeNode Text="Node1">
</ig:DataTreeNode>
<ig:DataTreeNode Text="Node2">
</ig:DataTreeNode>
</Nodes>
</ig:WebDataTree>
<asp:TextBox ID="resultTextBox" runat="server" />
In C#:
protected void serverNodeDropped(object sender, DataTreeNodeDroppedEventArgs e)
{
this.resultTextBox.Text += string.Format("Node Dropped: {0} <br>", e.SourceNodes[0].Text);
}
WebDataTree drag and drop has the following new server-side events:
NodeAdded – occurs after add/insert, whenever node has been successfully added to the collection.
NodeRemoved – occurs after removale, whenever node has been successfully removed from the collection.
NodeDropped – occurs just after node has been successfully dropped