Getting value from child form to parent form?

[zul hayat]

I have a form, having tab control. Forms directly open in tab control as tab page. when i want to get data from child form to parent form. It gave error on owner ship of the form. Now i have changed the ownership of the form but still i cant get the value from child form to parent form.

My Code is:

when I opened the child form



private void button11_Click(object sender, EventArgs e)

{

using (New_Category new_Category = new New_Category("ProductDefinition"))

{

new_Category.ShowDialog();

}

}



Now from this child form i want to retrieve the value to parent form. the code is given below:

Product_Defination prod = new Product_Defination("","");
Main_form main = new Main_form("", "");
prod.Owner = main;
prod.get_productid_notifyme(Product_id);

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