title: C# DataGridView MouseClick + CTRL not calling CellClick() EventHandler
body: <p>I'm using <strong>WinForms</strong> and a <strong>DataGridView</strong>.
  I've register an <code>CellClick</code> event for <strong>selecting/unselecting 1 item</strong> (project name).
  The problem is that with <em>CTRL</em> button hold down + <em>Mouseclick</em> 
  this Event is not fired.</p>
  
  <p>This is my EventHandler:</p>
  
  <pre><code>private void dataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
          {
              if (e.RowIndex &lt; 0 || e.RowIndex &gt;= dataGridView.Rows.Count ||
                  e.ColumnIndex &lt; 0 || e.ColumnIndex &gt;= dataGridView.Columns.Count) return;
  
              if (dataGridView.Rows[e.RowIndex].Selected)
                  this.selectedProject = dataGridView.Rows[e.RowIndex].DataBoundItem as GlobalProject;
              else this.selectedProject = null;
  
              OnChoose(new OnChooseProjectEventArgs(this.selectedProject != null));            
          }
  </code></pre>
  
  <p>Why is that? And what's the workaround, please</p>