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The Reordering server event fires when the AutoPostBackOnReorder="True". It fires once for all selected items.

The event handler receives two parameters:

  1. The instance of the listbox firing the event

  2. An event arguments parameter containing the following properties:

  • Items - collection of RadListBoxItem objects which were selected for reordering.

  • Offset - returns -1 if you are moving the item up and 1 if you are moving the item down.

  • Cancel - set it to True to cancel the event and prevent the reordering to happen

The following example shows how to cancel the event if there are more than 2 items to be reordered:

protected void RadListBox1_Reordering(object sender, RadListBoxReorderingEventArgs e)
    if (e.Items.Count > 2)
        e.Cancel = true;
Protected Sub RadListBox1_Reordering(ByVal sender As Object, ByVal e As RadListBoxReorderingEventArgs)
    If e.Items.Count > 2 Then
        e.Cancel = True
    End If
        End Sub 

See Also

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