C# testing to see if a string is an integer?

Question

I\'m just curious as to whether there is something built into either the C# language or the .NET Framework that tests to see if something is an integer

if (x         


        

Answer 1

I think that I remember looking at a performance comparison between int.TryParse and int.Parse Regex and char.IsNumber and char.IsNumber was fastest. At any rate, whatever the performance, here's one more way to do it.

        bool isNumeric = true;
        foreach (char c in "12345")
        {
            if (!Char.IsNumber(c))
            {
                isNumeric = false;
                break;
            }
        }