validate Integers.....

Question

Hi all c# lovers I want to check the input string ( to a textbox) is a numeric value or not. what is the easiest method to do this? can someone give me a sample code for that... I hope .net has some methods to validate these formats. thank you....

Alan · Answer

Thought I'd just add that the TryParse() methods are only available in .NET 2.0 or later. If you're using .NET 1.0 or 1.1 you can replicate it with: int i; bool isValid = true; try { i = Int32.Parse(textBox1.Text); } catch { isValid = false; i = 0; }

Jan Montano · Answer

use Int32.TryParse. int i; if (Int32.TryParse(123 out i)) { // numeric } else { // not numeric }