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AssociatedObject.RowDragDropController.Dropped += sfGrid_Dropped;
private void sfGrid_Dropped(object sender, GridRowDroppedEventArgs e)
{
if (e.DropPosition != DropPosition.None)
{
//Get Dragging records
ObservableCollection<object> draggingRecords = e.Data.GetData("Records") asObservableCollection<object>;
//Gets the TargetRecord from the underlying collection using record index of the TargetRecord (e.TargetRecord)
ViewModel model = AssociatedObject.DataContext as ViewModel;
OrderInfo targetRecord = model.OrdersFirstGrid[(int)e.TargetRecord];
//Use Batch update to avoid data operatons in SfDataGrid during records removing and inserting
AssociatedObject.BeginInit();
//Removes the dragging records from the underlying collection
foreach (OrderInfo item in draggingRecords)
{
model.OrdersFirstGrid.Remove(item);
}
//Find the target record index after removing the records
int targetIndex = model.OrdersFirstGrid.IndexOf(targetRecord);
int insertionIndex = e.DropPosition == DropPosition.DropAbove ? targetIndex : targetIndex + 1;
insertionIndex = insertionIndex < 0 ? 0 : insertionIndex;
//Insert dragging records to the target position
for (int i = draggingRecords.Count - 1; i >= 0; i--)
{
model.OrdersFirstGrid.Insert(insertionIndex, draggingRecords[i] as OrderInfo);
}
AssociatedObject.EndInit();
}
}
| 
. do I need to include something other than Syncfusion.UI.Xaml.Grid?
