title: Updating DataGridViews source programmatically?
body: <p>After I change the DataGridView cell's value programmatically, the source cannot be updated. What can I do?</p>
  
  <pre><code>datagridview1.DataSource = bindingsource1;
  datagridview1.Rows[0].Cells[0].Value = "1";
  </code></pre>