C#•2mo ago

Hell

I understand that height and weight are local, any way to make them global?

32 Replies

Marvin•2mo ago

You can declare them as instance variables so they atleast available in the entire class. And consider sharing code either as text or actual screenshot of the computer.

Plonk•2mo ago

how do i do that?

Marvin•2mo ago

you can for example use

C#
public class ClassName
{
    private double Height { get; set; }
    private double Weight { get; set; }
}

C#
public class ClassName
{
    private double Height { get; set; }
    private double Weight { get; set; }
}

or if you prefer fields over properties:

C#
public class ClassName
{
    private double Height;
    private double Weight;
}

C#
public class ClassName
{
    private double Height;
    private double Weight;
}

Plonk•2mo ago

Okay and how do i use this to refer to the height snd weight in the button click

Marvin•2mo ago

you assign the local variables to the instance properties/fields

Plonk•2mo ago

I apologise but i am confused i dknt understand what the second example is dojng i created the class and now what?

Marvin•2mo ago

C#
public class ClassName {

    public double Height { get; set; }
    public double Weight { get; set; }

    public void textBox1_Changed() {

        double height = Convert.ToDouble("your text");
        Height = height / 39.37d;

    }

    public void textBox2_Changed() {

        double weight = Convert.ToDouble("your text");
        Weight = weight / 2.205d;

    }

    public void Third() {

        Calculate(Height, Weight); // you can also just use the instance variables inside calculate directly if preferred 

    }

    public void Calculate(double height, double weight) {

    }

}

C#
public class ClassName {

    public double Height { get; set; }
    public double Weight { get; set; }

    public void textBox1_Changed() {

        double height = Convert.ToDouble("your text");
        Height = height / 39.37d;

    }

    public void textBox2_Changed() {

        double weight = Convert.ToDouble("your text");
        Weight = weight / 2.205d;

    }

    public void Third() {

        Calculate(Height, Weight); // you can also just use the instance variables inside calculate directly if preferred 

    }

    public void Calculate(double height, double weight) {

    }

}

You have to declare them in the class your event handlers are in

Plonk•2mo ago

Im sorry but i still dont understand ill work it out thanks for your help I did it thank you so much Could you just explain what the Get set means?

Marvin•2mo ago

thats auto implementing properties. using this shortcut you basically get the following out of the box in comparison of a field backed property:

C#
private double _Weight;
public double Weight {
  get {
    return _Weight;
  }
  set {
    _Weight = value;
  }
}

C#
private double _Weight;
public double Weight {
  get {
    return _Weight;
  }
  set {
    _Weight = value;
  }
}

you can also just do, without the get, set. Might be easier for a beginner

C#
public double Weight;

C#
public double Weight;

Plonk•2mo ago

However now when i do calculations in the void calculates i get the result of Nan

Plonk•2mo ago

Marvin•2mo ago

in your code shown above, you would first need to change text of both text boxes to actually set the variables otherweise weight will be 0, which leads to division by 0

Plonk•2mo ago

i see so the text inputted in the text box isnt being used for the calculation?

Marvin•2mo ago

it should, can you show the code now?

Plonk•2mo ago

which part?

Marvin•2mo ago

where you set height and width but the entire class

Plonk•2mo ago

its the same as before i just added the get set part.

Plonk•2mo ago

Marvin•2mo ago

see, you never assign them to the isntance variables, in your case you need to do Height = height and Weight = weight; in the corresponding methods.

Plonk•2mo ago

amazing got jt it works thanks just got some logic errors to take care of

Marvin•2mo ago

good job

Unknown User•2mo ago

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MODiX•2mo ago

https://cdn.discordapp.com/attachments/364492811489509376/892176158312001586/code.gif

Unknown User•2mo ago

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MODiX•2mo ago

If your code is too long, you can post to https://paste.mod.gg/, save, and copy the link into chat for others to see your shared code!

Plonk•2mo ago

whats the huge deal with a photo?

Mako•2mo ago

- You cannot execute the code in a photo unless you type it out, which is fine if your function is a few lines long, and even then depends on the code complexity - Some people can adjust their font size to read code. You can zoom on a picture but it may get blurry. Then there's the fact that some cameras flash portion of the image, which makes it harder to read for everyone - Photos come across as low effort

Pobiega•2mo ago

$screenshot

MODiX•2mo ago

If you want to share code, please copy and paste the code into a markdown code block in your discord post, or paste the code into https://paste.mod.gg/ and share a link to it in your discord post. If want to share a screenshot, please do not take a photo of your computer screen with your phone or camera. Instead see https://www.take-a-screenshot.org/ for how to take a screen capture on your device. You may want to crop the image before pasting it into your discord message.

Kiel•2mo ago

I mean to be fair if they are for example using a school computer where discord is blocked or cannot be installed there's literally no way for them to share it outside of a picture

Pobiega•2mo ago

No there isn't. You can absolutely still go to a pastebin site or similar Also, please consider that noone is entitled to help. They can ask for it, and 99% do get it - but there is no entitlement and a bare minimum of effort is required to get it.

Unknown User•2mo ago

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Gaming

Programming

Hell