title: Filter DataGridView by boolean
body: <p>I'm trying to filter a DataGridView by bool values (column containing Checkboxes).</p>
  
  <p>I looked up several solutions and none worked for me.</p>
  
  <p>This one looks plain simple and logic, but it just erases all the entries.</p>
  
  <pre><code>            DataView dv = new DataView();
              dv.RowFilter = "Finished = 0";
              dgvMain.DataSource = dv;
  </code></pre>
  
  <p>The Column's header text is "Finished" as well as the name is "Finished".</p>
  
  <p>What am I doing wrong here?</p>