String - IsNumeric
A string extension method that query if the string object is numeric.
public static void Main() { string [] values = {"EntityFramework", "13.5", "29", "SQL", "31"}; foreach(var str in values) { // C# Extension Method: String - IsNumeric if(str.IsNumeric()) { Console.WriteLine(str); } } }
View Source
using System.Text.RegularExpressions; public static partial class Extensions { /// <summary> /// A string extension method that query if '@this' is numeric. /// </summary> /// <param name="this">The @this to act on.</param> /// <returns>true if numeric, false if not.</returns> public static bool IsNumeric(this string @this) { return !Regex.IsMatch(@this, "[^0-9]"); } }