Is Digits Only - CSharp System

CSharp examples for System:String Parse

  1. HOME
  2. CSharp
  3. System
  4. String Parse

Description

Is Digits Only

Demo Code

/*/*from w w w.jav  a2s  . com*/
    C# Framework with a lot of useful functions and classes
    Copyright (C) 2018/2019 Bruno Fi?trek
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

public class Main{
        public static bool IsDigitsOnly(string str, bool allow_dot = false)
        {
            foreach (char c in str)
            {
                if (c < '0' || c > '9')
                {
                    if (!allow_dot)
                        return false;
                    else if (allow_dot)
                        if (c != '.')
                            return false;
                }             
            }
            return true;
        }
}

Related Tutorials