CODEWITHSUNDEEP
c#formsclassobject
Zephni
Zephni

Reputation: 873

Changing a form object's property from a separate class

I'm very new to using C#. If you have ever heard of the Karol the robot program that is written in Java then that's what I'm aiming to build.

But I am stumbling at almost the first hurdle, I want to make a class for Karol (It is just a picture) that can move around the screen in blocks of 32x32 squares.

Trouble is when you create a class you can't access the properties of form objects because they are separate things.

I would like to be able to manipulate form objects from my class but without having to pass the object through the method each time I use it.

Any help is much appreciated.

Upvotes: 0

Views: 806

Answers (2)

Tigran
Tigran

Reputation: 62246

Do not need to pass a reference of the Form every time. Should be enough to do something like this:

`public class Karol 

  {

private Form _form=null;

public Karol(Form frm) {

      _form = frm;
}

// after use _form inside the functions and     properties of the class, where needed

 }`

edit

to acces a control data inside a Form it needs to expose or controls itself, like

public Label MyFormLabel {....}

Or expose a functions/properties that sets or gets the data from the control.

public string MyFormLabelText { get{ return label.Text;} set{label.Text = value;}}

Upvotes: 1

Joachim Isaksson
Joachim Isaksson

Reputation: 180917

If it's just one form object that "Karol" is manipulating, you should be able to pass it to the constructor and save it for use in later member calls. That way you only pass it once at construction time.

Upvotes: 1

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