title: Reload MDI Parent from child form
body: <p>I need to reload Mdi Parent form in one of my child form event.</p>
  
  <p>I have used below code but it is not working </p>
  
  <pre><code>//Child form even
  private void btnChange_Click(object sender, EventArgs e)
  {
       this.ParentForm.Refresh();
  }
  </code></pre>
  
  <p>what is the solution please any one suggest me.</p>