String - IsDigit
Indicates whether the character at the specified position in a specified string is categorized as a decimal digit.
public static void Main() { string input = ".NET 4.7.2"; Console.WriteLine("Is each of the following characters a digit?"); for (int i = 0; i < input.Length; i++) { // C# Extension Method: String - IsDigit var result = input.IsDigit(i); Console.WriteLine("{0} : {1} ", input[i], result); } }
View Source
using System; public static partial class Extensions { /// <summary> /// Indicates whether the character at the specified position in a specified string is categorized as a decimal /// digit. /// </summary> /// <param name="s">A string.</param> /// <param name="index">The position of the character to evaluate in .</param> /// <returns>true if the character at position in is a decimal digit; otherwise, false.</returns> public static Boolean IsDigit(this String s, Int32 index) { return Char.IsDigit(s, index); } }