. NET Learning 3rd season WinForm application MDI Form Design MenuStrip

Forms 2, 3, 4 ... a design that falls only within the scope of form 1 (the parent form) and can be displayed all---MDI form design

Create an object of the MenuStrip class in Form 1 (menu bar), set one of the click events to show Forms 2, 3, 4

Private void Display Subform Toolstripmenuitem_click (object  sender, EventArgs e)            {new Form2 ();            F2. Show ();             New Form3 ();            F3. Show ();             New Form4 ();            F4. Show ();        }

This is done just to show forms 2, 3, 4, and they are not limited to the range shown in Form 1.

Form 1 is defined first as a parent form, and the Form1 property IsMdiContainer is set to true. Then set the Form2, 3, 4 property mdiparent to Form1. The display of Forms 2, 3, and 4 is limited to the scope of form 1.

 private  void  Show Subform Toolstripmenuitem_click (object   sender, EventArgs e) {Form2 F2  = new              Form2 (); F2.            MdiParent  = this  ; F2.            Show ();            Form3 f3  =  FORM3 (); F3.            MdiParent  = this  ; F3.            Show ();            FORM4 f4  =  FORM4 (); F4.            MdiParent  = this  ; F4.        Show (); }

Because this method is in class Form1, this is referring to the Form1 we want.

The MDI form has a method LayoutMDI () that controls how the subform is arranged, and the parameter is an enumeration type of mdilayout.

Private void transverse arrangement toolstripmenuitem_click (object  sender, EventArgs e)        {            LayoutMDI ( mdilayout.tilehorizontal);        } Private void longitudinal arrangement toolstripmenuitem_click (object  sender, EventArgs e)        {            LayoutMDI ( mdilayout.tilevertical);        }

. NET Learning 3rd season WinForm application MDI Form Design MenuStrip