Invoke a control in a subform

Usually clicking somewhere on the main form to pop up a subform, doing something in the subform, and then calling the value in the control in the subform in the main form, is simple enough to do two points:

1. The form class-level new subform in the main form

Newnew Frmbutton ();

2. Set the Modifer property of the control in the subform that you want to call in the main form to public

3. Show subform in main form code, new Out button event in Subform

?

1 2	frmbtn.Show();frmbtn.btnConfirmImage.Click += btnConfirmImage_Click;

4. The Click event of the Write button in the main form

        Private void Btnconfirmimage_click (object  sender, EventArgs e)        {            frmbtn. Hide ();        }