title: Delay textbox-textchanged in vb
body: <p>I am  a simple beginner  and need small help:
  I have textbox1 and textbox2.
  Supposed when you put a number (for ex. 21) in the textbox1, I need  textbox2 to give me the double number (42). I mean that I need <code>textbox2.text=2*textbox1.text</code></p>
  
  <p>I used this simple code :</p>
  
  <pre><code>Private Sub TextBox1_Textlength(ByVal sender As System.Object, ByVal e As System.EventArgs)
  Handles TextBox1.TextChanged
           TextBox2.Text = 2*TextBox1.Text
  </code></pre>
  
  <p>The problem is: when I wrote (in textbo1) only one digit everything it's ok, but I could not write two (or more) digits.
  How do I make a delay (interval) which allows me to type a number like (1990 for example) before firing textbox1_changed?</p>