title: Row update from Datagridview by textboxes
body: <p>I want to update my data in the DataGridView (loaded from XML) </p>
  
  <pre><code>  private void dgv_AgendaAfspraken_MouseDoubleClick(object sender, MouseEventArgs e)
      {
         DataGridViewRow dr = dgv_AgendaAfspraken.SelectedRows[0];
         dtp_Date.Text = dr.Cells[0].Value.ToString();
         cbx_begeleider.Text = dr.Cells[1].Value.ToString();
         tbx_opleider.Text = dr.Cells[2].Value.ToString();
         tbx_bedrijf.Text = dr.Cells[3].Value.ToString();
         tbx_periode.Text = dr.Cells[4].Value.ToString();
      }
  </code></pre>
  
  <p>How do I update these results from the TextBoxes (when I'm changing it) from the same record I just picked them?</p>