passing a variable into another form

Question

this probably is very simple. This is an assignment for a class, there seems to be several versions of this floating around, and several versions of an answer but I'm not sure how they work. The assignment is to create two forms. One with a dorm price and meal price and the second form is to display the total price. I want the price to display into a input label on the price form. Except I'm not sure how to get the information from one to the other. Does this require me doing a get/set somewhere within my Calculator form? This is form 1(Calculator) code:

public partial class Calculator : Form
{
    Price myPrice = new Price();
    decimal dorm = 0;
    decimal meal = 0;

    public Calculator()
    {
        InitializeComponent();
    }

    private void getPriceButton_Click(object sender, EventArgs e)
    {
        decimal price = 0;

        getInput();

        price = dorm + meal;

        myPrice.ShowDialog();


    }

    private void getInput()
    {
        if(allenRadioButton.Checked)
        {
            dorm = 1500;
        }

        if(pikeRadioButton.Checked)
        {
            dorm = 1600;
        }

        if(farthingRadioButton.Checked)
        {
            dorm = 1800;
        }

        if(universityRadioButton.Checked)
        {
            dorm = 2500;
        }

        if(sevenRadioButton.Checked)
        {
            meal = 600;
        }

        if(fourteenRadioButton.Checked)
        {
            meal = 1200;
        }

        if(unlimitedRadioButton.Checked)
        {
            meal = 1700;
        }
    }

This is form2 (Price) code:

public partial class Price : Form
{
    Calculator myCalulator = new Calculator();

    public Price()
    {
        InitializeComponent();
    }

    priceLabel.Text = price.myCalculator.TosString("c");
}

Hint: you can add custom constructors to forms.

PTwr
– PTwr

2016-02-29 08:55:02 +00:00
Commented Feb 29, 2016 at 8:55 — PTwr
– PTwr, Commented Feb 29, 2016 at 8:55
Possible duplicate of Sending variables from Form2 to Form1

netblognet
– netblognet

2016-02-29 08:55:03 +00:00
Commented Feb 29, 2016 at 8:55 — netblognet
– netblognet, Commented Feb 29, 2016 at 8:55
make variables static

M.kazem Akhgary
– M.kazem Akhgary

2016-02-29 08:55:19 +00:00
Commented Feb 29, 2016 at 8:55 — M.kazem Akhgary
– M.kazem Akhgary, Commented Feb 29, 2016 at 8:55
@M.kazemAkhgary ewwww!

PTwr
– PTwr

2016-02-29 08:56:13 +00:00
Commented Feb 29, 2016 at 8:56 — PTwr
– PTwr, Commented Feb 29, 2016 at 8:56
Possible duplicate of pass a value from one form to another

Ondrej Svejdar
– Ondrej Svejdar

2016-02-29 08:57:50 +00:00
Commented Feb 29, 2016 at 8:57 — Ondrej Svejdar
– Ondrej Svejdar, Commented Feb 29, 2016 at 8:57

Katia · Accepted Answer · 2016-02-29 09:01:59Z

2

you can make a variable of price in second form and pass your price to the constructor of Price form:

    public string price;
    public Price(string price)
    {
        this.price = price;
        InitializeComponent();
    }

    private void getPriceButton_Click(object sender, EventArgs e)
    {
        decimal price = 0;
        getInput();
        price = dorm + meal;
        Price myPrice = new Price(price)
        myPrice.ShowDialog();
    }

answered Feb 29, 2016 at 9:01

Katia

6296 silver badges16 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

secretTina Over a year ago

I've tried a version of both constructors but it keeps telling me "method must return a type" even though it's a constructor. I'll work on it some more. Thanks a bunch

Katia Over a year ago

You need to have it only in Price constructor and pass it during creation of myPrice, and I made a mistake - there should be decimal in your case, not string.

secretTina Over a year ago

that's cool I caught that, i've gotten part of it to work, i have other errors now. you're awesome

Katia Over a year ago

Thanks) if this is the correct answer - mark it in order all can see that the case is solved.

Community · Accepted Answer · 2017-05-23 12:15:41Z

0

Pass the price as a parameter to a new parameterised constructor of the Price form and use this for further operations.

private decimal _price;

public Price(decimal pPrice)
{
  InitializeComponent();
  _price = pPrice;
  ...
}

Also instantiate the myPrice object in your button click event with this new constructor. like;

Price myPrice = new Price(price);
myPrice.ShowDialog();

For other ways to pass the value from one form to other, please refer to this link; How can I pass values from one form to another? and also Passing Parameters back and forth between forms in C#

edited May 23, 2017 at 12:15

CommunityBot

11 silver badge

answered Feb 29, 2016 at 9:00

Krishna Kumar N

13510 bronze badges

1 Comment

secretTina Over a year ago

thanks a bunch everyone...you have no idea how far this has gotten me in a short amount of time. thanks

Shalinka Randeniya · Accepted Answer · 2016-02-29 10:09:45Z

0

You can Do this simply by adding a variable and making it public in the windows form like this.

public int PassValue

And pass a value to it, before the form is called

form1 obj = new form1();
obj.PassValue = 34;
obj.Show();

answered Feb 29, 2016 at 10:09

Shalinka Randeniya

17312 bronze badges

Collectives™ on Stack Overflow

passing a variable into another form

3 Answers 3

4 Comments

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

4 Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related