How can I check if a string is a number?

Question

I\'d like to know on C# how to check if a string is a number (and just a number).

Example :

141241   Yes
232a23   No
12412a   No

an

Answer 1

use this

 double num;
    string candidate = "1";
    if (double.TryParse(candidate, out num))
    {
        // It's a number!


 }