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Input String was not in correct format.

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Iam just a beginer and learning C# Language. Iam getting the "Input String was not in the correct format". The code was given below.

namespace WhileDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            int count = 1;
            int principal,roi ,noy;
            float si;

            while (count <= 3)
            {
                Console.WriteLine("Enter the values of principal,rate of interest,years");
                principal = Convert.ToInt32(Console.ReadLine());
                roi = Convert.ToInt32(Console.ReadLine());
                noy = Convert.ToInt32(Console.ReadLine());

                si = (principal * roi * noy) / 100;

                Console.WriteLine("The simple interest is :\t" +si);

                count = count + 1;
            }

        }
    }
}

Please help me to fix the above problem.

Jayakumar

Saturday, May 12, 2012 3:36 PM

Answers

try these changes. I would think if you are enter currency with two decimal palces you would need to convert to a float, not a Int32 (which is an integer with no decimal place).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace WhileDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            int count = 1;
            int principal, roi, noy;
            float si;
            string response;
            while (count <= 3)
            {
                Console.WriteLine("Enter the values of principal,rate of interest,years");
                response = Console.ReadLine();
                if (Int32.TryParse(response, out principal) == true)
                {
                    response = Console.ReadLine();
                    if (Int32.TryParse(response, out roi) == true)
                    {
                        response = Console.ReadLine();
                        if (Int32.TryParse(response, out noy) == true)
                        {
                            si = (principal * roi * noy) / 100;
                            Console.WriteLine("The simple interest is :\t" + si);
                            count = count + 1;
                        }
                    }
                }
 
            }
        }
    }
}

jdweng

Proposed as answer by Mike Feng Monday, May 14, 2012 10:50 AM
Marked as answer by Mike Feng Tuesday, May 22, 2012 10:14 AM

Saturday, May 12, 2012 5:01 PM

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Input String was not in correct format.

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