try this:

vb Code:
  1. dgvGriglia.AutoGenerateColumns = False

  2. dgvGriglia.AllowUserToAddRows = False

  3. dgvGriglia.AllowUserToDeleteRows = False

  4. dgvGriglia.AllowUserToResizeRows = False

  5. dgvGriglia.AllowUserToOrderColumns = True

  6. dgvGriglia.MultiSelect = False

  7. dgvGriglia.ReadOnly = True

  8. dgvGriglia.RowHeadersVisible = False

  9. dgvGriglia.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing

  10. dgvGriglia.SelectionMode = DataGridViewSelectionMode.FullRowSelect

  11.  
  12. Dim oCol As DataGridViewTextBoxColumn = DirectCast(dgvGriglia.Columns(0), DataGridViewTextBoxColumn)

  13. oCol.Name = cColName

  14. oCol.DefaultCellStyle.Alignment = oAlignment

  15. oCol.Width = VB6.TwipsToPixelsX(nTwWidth)

  16. oCol.HeaderText = cHeaderText

  17. oCol.DataPropertyName = cDataPropertyName

  18. dgvGriglia.Columns(0).SortMode = DataGridViewColumnSortMode.Automatic

  19.  
  20. dgvGriglia.DataSource = ds.Tables(0).Select(cFilter)