title: how to set SelectedIndex in DataGridViewComboBoxColumn?
body: <p>i am using a datagridview in that i am using a datagridviewcomboboxcolumn, comboboxcolumn is displaying text but the problem is i want to select the first item of comboboxcolumn by default how can i do this</p>
  
  <pre><code>DataGridViewComboBoxColumn dgvcb = (DataGridViewComboBoxColumn)grvPackingList.Columns["PackingUnits"];
  Globals.G_ProductUtility G_Utility = new Globals.G_ProductUtility();
  G_Utility.addUnittoComboDGV(dgvcb);
  DataSet _ds = iRawMaterialsRequest.SelectBMR(bmr_ID, branch_ID, "PACKING");
  grvPackingList.DataSource = _ds.Tables[0];
  int i = 0;
  foreach (DataRow dgvr in _ds.Tables[0].Rows)
  {
      grvPackingList.Rows[i].Cells["Units"].Value = dgvr["Units"].ToString();
      i++;
  }
  </code></pre>