title: How to merge mdi parent child toolstrip?
body: <p>How can i find toolstrip1 control on child form.
  This does not work:</p>
  
  <pre><code>    private void EUF_MdiChildActivate(object sender, EventArgs e)
      {
          ToolStripManager.Merge(this.ActiveMdiChild.Controls("toolStrip1"), toolStrip1);
      }
  </code></pre>
  
  <p>I get an error : </p>
  
  <pre><code>     Error  1   
       Non-invocable member 'System.Windows.Forms.Control.Controls' cannot be used like a method. 
  </code></pre>