Trying to convert the value of a textbox to an int C# .NET : <p>I am currently trying to use the value of a textbox as the value of an integer in a Timer so its like this</p>

<p>User inputs a value 
my application reads it and uses the input as a value of interval in a timer
 but its giving me this error, whats going on?
<a href="http://i.stack.imgur.com/uow8s.png" rel="nofollow">Here is what it looks like</a></p>
