Checks string to see whether all characters are digits - CSharp System

CSharp examples for System:Char

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Description

Checks string to see whether all characters are digits

Demo Code

//  The contents of this file are subject to the Common Public Attribution License Version 1.0 (the ?License?); 
using System.Globalization;
using System.Text.RegularExpressions;
using System.Text;
using System.Collections.Generic;
using System;/*from w w w.  j a v  a 2s . c  o  m*/

public class Main{
        /// <summary>
		/// Checks string to see whether all characters are digits
		/// </summary>
		/// <param name="theString"></param>
		/// <returns></returns>
		public static bool IsDigitsOnly(string theString)
		{
			if( (theString == null) || (theString.Length == 0) )
				return false;
		
			foreach(char c in theString)
			{
				if( !char.IsDigit(c) )
					return false;
			}

			return true;
		}
}

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