private void dragDropService_PreviewDragDrop(object sender, RadDropEventArgs e)
{
SnapshotDragItem dragInstance = e.DragInstance as SnapshotDragItem;
if (dragInstance == null)
{
return;
}
RadItem dropTarget = e.HitTarget as RadItem;
RadGridView targetGrid = dropTarget.ElementTree.Control as RadGridView;
if (targetGrid == null)
{
return;
}
RadGridView dragGrid = dragInstance.Item.ElementTree.Control as RadGridView;
if (targetGrid != dragGrid)
{
e.Handled = true;
CustomGridBehavior behavior = (CustomGridBehavior)dragGrid.GridBehavior;
GridDataRowElement dropTargetRow = dropTarget as GridDataRowElement;
int index = dropTargetRow != null?this.GetTargetRowIndex(dropTargetRow, e.DropLocation) : targetGrid.RowCount;
this.MoveRows(targetGrid, dragGrid, behavior.SelectedRows, index);
}
}
private void svc_PreviewDragOver(object sender, RadDragOverEventArgs e)
{
SnapshotDragItem dragged = e.DragInstance as SnapshotDragItem;
if (dragged != null && dragged.Item is GridHeaderCellElement)
{
e.CanDrop = e.HitTarget is GroupPanelElement;
}
}
private void svc_PreviewDragStart(object sender, PreviewDragStartEventArgs e)
{
SnapshotDragItem dragged = e.DragInstance as SnapshotDragItem;
if (dragged != null && dragged.Item is GridHeaderCellElement)
{
e.CanStart = true;
}
}
private void dragDropService_PreviewDragHint(object sender, PreviewDragHintEventArgs e)
{
SnapshotDragItem dragInstance = e.DragInstance as SnapshotDragItem;
if (dragInstance == null)
{
return;
}
GridViewRowInfo rowInfo = e.DragInstance.GetDataContext() as GridViewRowInfo;
if (rowInfo != null && rowInfo.ViewTemplate.MasterTemplate.SelectedRows.Count > 1)
{
e.DragHint = new Bitmap(this.imageList1.Images[6]);
e.UseDefaultHint = false;
}
}