How to access parent form from child form, when using childform.showdialog()

Question

I have a MDI form, From this form i am showing another form with childform.showdialog()

I need to show some messages from the childform but in the MDI form.

For this, how can i access the MDI Form.

Please help ..

Answer 1

Lets say that Form1 in the parent, and Form2 is you child form:

On form1 from where you want to open form 2 you do:

 

Form2 form2 = new Form2(this);

form2.Show();

 

On form2 you do:

public partial class Form2 : Form
{
    Form1 form1 = new Form1();
    public NovaSezona(Form1 _form1)
    {
      InitializeComponent();
      form1 = _form1;
    }

    pubic vod YourMethod()
    {
       // now you can access with form1.XXX to the public methods, controls,.. on form1
    }
}

 

 

Answer 2

but here i am using form2.showdialog() and  i need to access the same form which called form2.showdialog() ..

 

Also Form1 form1 = new Form1() creates a new form object instead ..

 

 

Answer 3

True, but take a look at the constructor that Mitja Bonca wrote.

 

It takes an Form1 as a parameter, replacing "new Form1()" with what is specified in the constructor.

 

If you write:

Form2 form2 = new Form2(this);

then the field _form1 would be set to the specific instance that called the new Form2.

Which means that you can use its public methods, properties etc etc by calling

this._form1.<some property or method name here>

and get values from the current running instance of Form1 which called Form2.

 

Hope to help :-) 

(Sorry if my answer is a little bit unclear, but its friday and I almost just woke up)

 

Cheers