2 - in C#, can you tell whether whatever the user has input is a string or integer?

Question

Anonyous · Accepted Answer

bool isInt(string userInput)
{
int i;
return Int32.TryParse(userInput, out &i);
}

Eric Popelka · Answer

if it's ASP.NET - regardless of whether the code-behind is C# or VB, a  will reject non-integers also

IsInt posted above will work (but take out the ampersand, that's what the 'out' is for). as #1 mentioned, this works too:

return System.Text.Regex.IsMatch(userInput, "^\d+$", RegexOptions.CultureInvariant);

Anonymous · Answer

2- no. there is no method like that. you have to make your own. I did that with regex

Northrop Grumman

Northrop Grumman Interview Question

Interview Answers

Want the inside scoop on your own company?

Bowls

Followed companies

Job searches