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Input String Not in correct format error

 
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Input String Not in correct format error, Having some trouble overcoming an input string error.
Onker
post 10 Oct, 2008 - 11:49 AM
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I've been working on this same project for a while, and come across a completely different issue from what I was having previously. (Which I got worked out thanks to some help from you guys*Jeff*)

here's the code chunk in question.

CODE

while (another)
{
    double temp = 0;
    int count = 0;
    Console.Write("Homework: ");
        string grade3 = Console.ReadLine();
    double hw = Double.Parse(grade3);
    temp = hw + temp;
    hwGrade = ((temp / count) * .2);

    if grade3 =="";
        break;


I'm getting an error of "Input string was not in a correct format"

I'm not understanding why I'm getting the error here, when the same or similar set up elsewhere in the program works perfectly fine.

Anyone have an answer to this one?

This post has been edited by Onker: 10 Oct, 2008 - 12:58 PM
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modi123_1
post 10 Oct, 2008 - 12:32 PM
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Which line was causing the problem?

Side note

cpp
 
 if grade3 =="";
break;


should be changed to

cpp
  
if (grade3 =="")
break;
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Onker
post 10 Oct, 2008 - 12:48 PM
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Sorry, that was a typo, the code's on my laptop and I had to transfer it in here by hand, no wireless at work tongue.gif

The line that's giving the problem is this one.
CODE

double hw = Double.Parse(grade3);


I can't believe I forgot to put that in there. *sigh*
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PsychoCoder
post 10 Oct, 2008 - 12:52 PM
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using DIC.Core;

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If grade3 is anything other than a numeric value then you'll get that error. Do a Console.WriteLine before that line to see what it's value is
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Onker
post 10 Oct, 2008 - 12:57 PM
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Odd how much of a friend copy past is.
I'm editing the base code to include the line "String grade3 = console.readline();"
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Onker
post 10 Oct, 2008 - 02:13 PM
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Solved it, it was an issue with the order of the statements.

CODE

while(another)
                {
                    Console.Write("Homework: ");
                    string grade3 = Console.ReadLine();
                    if (grade3 == "")
                    {
                        break;
                    }
                    double hw = Convert.ToDouble(grade3);
                    temp = hw + temp;
                    hwGrade = ((temp / count) * .2);
                    
                }


is the functional version. Now I've got one last bug to chase down and I'm done!
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