C#•3mo ago

Calculation not displaying

I’m trying to make a BMI calculator for my class and for some reason the BMI wont display. It works for other equations tho. I tried math.pow and that didn’t work either

5 Replies

FunkyMonkeyOP•3mo ago

I don’t get any errors when running it either. Just the lblBMI.Text part doesn’t show the BMI.tostring part. If i make double BMI = weight / height(like in the // section); It WILL show. Makes no sense

SG97•3mo ago

I suggest you debug, and figure out what value gets calculated if you're taking user input I suggest using $tryparse

MODiX•3mo ago

When you don't know if a string is actually a number when handling user input, use int.TryParse (or variants, e.g. double.TryParse)

if (int.TryParse("123", out int number))
{
    var total = number + 1;
    Console.WriteLine(total); // output: 124
}

if (int.TryParse("123", out int number))
{
    var total = number + 1;
    Console.WriteLine(total); // output: 124
}

TryParse returns a bool, where true indicates successful parsing. - Avoid int.Parse if you do not know if the value parsed is definitely a number. - Avoid Convert.ToInt32 entirely, this is an older method and Parse should be preferred where you know the string can be parsed. Read more here

Unknown User•3mo ago

Message Not Public

glhays•3mo ago

From my take all this should work correctly as far as your coding for calculate body mass indexes and assignability to the control. What no one can tell by this pic, is where the label controls visibility is set or how. More context might help us help you. 🤔

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