Remove all non numeric characters from a string in C#

To remove all non numeric characters from a string in C# we can use regex expression method Regex.Replace() and pass the string as first parameter and the expression [^.0-9] as second parameter and "" (empty string) as third parameter.

Example

using System;
using System.Text.RegularExpressions;
					
public class Program
{
	public static void Main()
	{
		string message = "hello 1 user";  
		string newString = Regex.Replace(message, "[^.0-9]", "");
		Console.WriteLine(newString);  
	}
}

Output

Conclusion

In this page (written and validated by A. Gawali) you learned about Remove all non numeric characters from a string 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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