title: Remove columns from column chooser
body: <p>I have a <code>GridView</code> that contains a list of columns. Some columns I need to have in the grid, some columns I don't use. Those columns are disabled but exist in the column chooser. Is it possible to remove them from the column chooser columns in the <code>GridView</code>? For disabling columns I use the following code but it doesn't work:</p>
  
  <pre><code>private void HideColumn(GridView grid, string columnName)
  {
      grid.Columns[columnName].VisibleIndex = -1;
      grid.Columns[columnName].OptionsColumn.ShowInCustomizationForm = false;
  }
  </code></pre>