title: How to add items to a DataGridView ComboBoxColumn?
body: <p>I'm having a problem with filling a <code>comboxcolumn</code> in a datagrid view. Here is a brief description of my problem.</p>
  
  <p>I've a combo column in datagrid view named as <code>dgvRightsColumn</code> and table in SQL named as Rights. I want to fill this combobox of dagaridview with the RightsNames in Rights Table. </p>
  
  <pre><code>DataGridViewComboBoxColumn dgvRightsColumn = new DataGridViewComboBoxColumn();
  
  SqlCommand fillRights = new SqlCommand("SELECT * FROM [Rights]", sqlConnection);
  SqlDataReader readerRights = fillRights.ExecuteReader();
  
  while (readerRights.Read())
  {
      dgvRightsColumn.Items.Add(Convert.ToString(readerRights["RightName"]));
  }
  
  readerRights.Close();
  </code></pre>