Ok, so I have this system working, now I need to know this.

If I had this

Code:
Dim Ary() As String = {"522", "462", "521", "461", "463", "581", "448", "586", "523", "468", "471"}
And when someone type into a textbox and click a button, how do I make the number from the Textbox find the number in the string and return what id in the string it is, like so if I was using 522 in the ary I have shown, it would highlight the first text in a combo box. Any ideas? If you didnt understand I will try to explain again.