Check if a string is a number in C#

To check whether a string is a number is C#, we can use built in method int.TryParse().

Example

using System;  

public class Example
{
    public static void Main()
    {
	string s1 = "123";
	string s2 = "abc";
	int n;

	bool isNumber = int.TryParse(s1, out n); 
	Console.WriteLine(isNumber);

	isNumber = int.TryParse(s2, out n); 
	Console.WriteLine(isNumber);
    }
}

Output

True
False

Conclusion

In this page (written and validated by A. Gawali) you learned about Check if a string is a number in C# . What's Next? If you are interested in completing C# tutorial, we encourage you simply to start here: C# Tutorial.

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