/// <summary>
/// Handles the PreviewDrop event of a DropTarget ItemsControl
/// </summary>
private void DropTarget_PreviewDrop(object sender, DragEventArgs e)
{
object draggedItem = e.Data.GetData(this.format.Name);
int indexRemoved = -1;
if (draggedItem != null)
{
if (this.sourceItemsControl != null)
{
if ((e.Effects & DragDropEffects.Move) != 0)
{
indexRemoved = DragDropUtilities.RemoveItemFromItemsControl(this.sourceItemsControl, draggedItem);
}
// This happens when we drag an item to a later position within the same ItemsControl.
if (indexRemoved != -1 && this.sourceItemsControl == this.targetItemsControl && indexRemoved < this.insertionIndex)
{
this.insertionIndex--;
}
}
DragDropUtilities.InsertItemInItemsControl(this.targetItemsControl, draggedItem, this.insertionIndex);
RemoveDraggedAdorner();
if (GetIsInsertionAdornerEnabled(sender as Visual))
{
RemoveInsertionAdorner();
}
var element = sender as FrameworkElement;
if (element != null)
{
var args = new OnDropEventArgs(OnDropEvent, e, draggedItem);
element.RaiseEvent(args);
}
}
e.Handled = true;
}
/// <summary>
/// Handles the PreviewDrop event of a DropTarget ItemsControl
/// </summary>
private void DropTarget_PreviewDrop(object sender, DragEventArgs e)
{
object draggedItem = e.Data.GetData(this.format.Name);
int indexRemoved = -1;
if (draggedItem != null)
{
if (this.sourceItemsControl != null)
{
if ((e.Effects & DragDropEffects.Move) != 0)
{
indexRemoved = DragDropUtilities.RemoveItemFromItemsControl(this.sourceItemsControl, draggedItem);
}
// This happens when we drag an item to a later position within the same ItemsControl.
if (indexRemoved != -1 && this.sourceItemsControl == this.targetItemsControl && indexRemoved < this.insertionIndex)
{
this.insertionIndex--;
}
}
DragDropUtilities.InsertItemInItemsControl(this.targetItemsControl, draggedItem, this.insertionIndex);
RemoveDraggedAdorner();
if (GetIsInsertionAdornerEnabled(sender as Visual))
RemoveInsertionAdorner();
var element = sender as FrameworkElement;
if (element != null)
{
var args = new OnDropEventArgs(OnDropEvent, e, draggedItem);
element.RaiseEvent(args);
}
}
e.Handled = true;
}
