title: How to open a second Form as dialog when the first Form is already loaded?
body: <p>I have two forms: Form1 and Form2.</p>
  
  <p>I want to show Form2 as dialog when Form1 has been loaded. I mean when Form1 is loaded and visible to the user, then Form2 is showed as dialog.</p>
  
  <p>With the <code>Form1_Load</code> event it first show the Form2 as dialog and then show Form1.</p>
  
  <p>How can I first show Form1 and then Form2 as dialog?</p>