I'm new to this C # and my question is: how can I do a number validation for a calculator?
I would like to apply the validation in this part of my code:
float a, b;
Console.Write("INGRESE PRIMER VALOR: ");
a = float.Parse(Console.ReadLine());
Console.Write("INGRESE SEGUNDO VALOR: ");
b = float.Parse(Console.ReadLine());
Many thanks in advance!
Instead of using Parse, you should use TryParse that returns a bool to know if it is valid or not, which if you combine it with a while loop, would be as follows:
using System.Globalization;//libreria a añadir para usar las funcionalidades que mas abajo se menciona.
float a;
float outVariable;
Console.Write("INGRESE PRIMER VALOR: ");
while(!float.TryParse(Console.ReadLine(),
NumberStyles.Float | NumberStyles.AllowThousands,
CultureInfo.InvariantCulture,
out outVariable))
{
Console.Write("INGRESE PRIMER VALOR: ");
}//fin del ciclo while
Console.ReadKey();
Greetings