Validate integer in textbox copntrol

[codemech]

Can anyone help me with validating a textbox for an integer value. The texbox is designed to hold a contract number which is an integer value in the backend sql database. I know that a try/catch block will work and that is ok but I am looking for any other creative solutions. This is a Windows form.

Thanks,

~~ Codemech

 

[xai999]

A try/catch wouldn't be such a great idea, cause performance would be bad when someone is inserting a none integer.
Why not look into Double.TryParse? This function allows you to try parse a string into any number type and format and returns a bool to tell you if the conversion worked.

 

[SgtPeppa]

If you want something fancy create your own TextBox that only allows Integers.


And here is another different approach to the Problem!

http://www.codeproject.com/csharp/HTMLPageIntCharEmail.asp

Stephan