With DataGridView1
       .columns.clear
       .AutoGenerateColumns = False
       .DataSource = bs_grid 'Bindingsource --> Datatable
       Dim col As New DataGridViewTextBoxColumn
       col.Name = "SpalteX" : col.Visible = True
       col.DataPropertyName = <Bezeichnung eines Members in bs_grid> 
       .Columns.Add(col)
       '... usw.  
   End With