title: Opening an ASP.NET page from the parent page in a separate window
body: <p>I have two asp.net pages. One is <code>parent.aspx</code> and the other is <code>child.aspx</code>.  </p>
  
  <p>The <code>parent.aspx</code> contains a button.  </p>
  
  <p>Whenever I click that button on <code>parent.aspx</code>, I want the <code>child.aspx</code> to appear in another window of my desired size over the parent window just like popup but not popup.  </p>
  
  <p>I have used <code>window.Open()</code> script function. But stuck about what c# code should I write on the back end.</p>
  
  <p>What can I do in such situation?</p>