How to validate textbox containing website email information

Question

I want to check textbox field where a user will be giving website address or email address. www.xyz.com -- I want to check whether actual web address format is given or not. xyz@yahoo.com -- I want to check whether actual email address format is given or not. Can anybody help me?

Bechir Bejaoui · Answer

It's simple first set the Causevalidation proeprty to true then implement the textBox_Validating(.....) event handler dont forget to include System.Text.RegualrExpressions namespace public textBox_Validating(object sender eventarg e) { if(Check(textbox.text)) { instruction1; } else { instruction 2; } } public bool Check(string input) { bool response = false; if(Regex.IsMatch(input@\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*)) {response = true;} else { response = false; } return response; }

How to validate textbox containing website, email information