Private Sub BindDataGrid()
   Dim table As New DataTable

   ' Insert code to populate a DataTable with data.

   ' Bind DataGrid to DataTable
   DataGrid1.DataSource = table
End Sub 

Private Sub ChangeRowFilter()
   Dim gridTable As DataTable = _
       CType(dataGrid1.DataSource, DataTable)

   ' Set the RowFilter to display a company names 
   ' that begin with A through I.
   gridTable.DefaultView.RowFilter = "CompanyName < 'I'"
End Sub

private void BindDataGrid()
{
    DataTable table = new DataTable();

    // Insert code to populate a DataTable with data.

    // Bind grid to DataTable.
    dataGrid1.DataSource = table;
}

private void ChangeRowFilter()
{
    DataTable gridTable = (DataTable) dataGrid1.DataSource;

    // Set the RowFilter to display a company names that 
    // begin with A through I..
    gridTable.DefaultView.RowFilter = "CompanyName < 'I'";
}