C# parent child

**BraneMxm** · 06-02-2007

Hi to all I need your help!

I have an assignement i must create an apllication that when opened opens 3 forms and wenn I click on form1 form1 should be the parent form of thw two other forms.

I have created 3 forms form1, fomr2,form3, and showed them on load.

I have two problems:

1. I dont know how to creatae an function for the event of the left click.
So i tried it with a button so i can try to set the parent-child relation.
and then i encotered the second problem:
2:
When i say frm1.Owner=this ; then logicaly it says that frm1 doesnt exist because it is out of scope. So i was forced to do Form2 frm2 = new Form2(); and then frm2.Owner = this; but that isnt the same form that i created on load.

Thank you
Here is the code:

Code:

 private void Form1_Load(object sender, EventArgs e)
        {
            Form2 frm2 = new Form2();
            Form3 frm3 = new Form3();
            frm2.Show();
            frm3.Show();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 frm2 = new Form2();
            frm2.Owner = this;
            frm2.Show();
        }

I have managed my app to show a messagebox on a clock on the form. But i cant set the parent-child relationship because: The name frm2 doesnt exist in the curent context

Code:

void Clicked(object sender, EventArgs e)
        {
            MessageBox.Show("a");
            /* frm2.Owner = this;
            frm3.Owner = this;*/
        }

**GanglyLamb** · 06-02-2007

Code:

 private void Form1_Load(object sender, EventArgs e)
        {
            Form2 frm2 = new Form2();
            Form3 frm3 = new Form3();
            frm2.Show();
            frm3.Show();
        }

Instead of doing it like this, make a private field called frm2 and frm3 in the form1 class (declaration). Then in the Form1_load function, you initialise these objects , by doing something like this.frm2 = new Form2();.

This way you can access these forms troughout the whole form1 class.

**BraneMxm** · 06-02-2007

It looks like this now it works but is this what the task is?
And i am not sure about the question how the ownership of the windows affects their appereance.

Code:

namespace vjezba4dio2
{

    public partial class Form1 : Form
    {
        private Form2 frm2 = new Form2();
        private Form3 frm3 = new Form3();
        
        public Form1()
        {
            InitializeComponent();
            this.Click += new EventHandler(this.Clicked);
            
            frm2.Show();
            frm3.Show();
            
        }
        
        private void Form1_Load(object sender, EventArgs e)
        {                     
        }

        void Clicked(object sender, EventArgs e)
        {
            frm2.Owner = this;
            frm3.Owner = this;

        }
       
        
        
    }
}

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