This is a DataGrid that performs a subtotal function. It is a component for developers that are creating their own reporting frameworks with .NET, want to leverage the DataGrid, have a requirement to display subtotals, and don't want to be bothered writing and debugging cursors on the DB. This is a DataGrid that performs a subtotal function. It is a component for developers that are creating their own reporting frameworks with .NET, want to leverage the DataGrid, have a requirement to display subtotals, and don't want to be bothered writing and debugging cursors on the DB.