Hi all!
Thanks a lot it worked :)..I have another query..like i am not using default menu strip for navigating to the child forms,instead i am using some controls like buttons and links for navigating to the child forms and i have placed those controls in the MDI Container . so i want those controls to disappear on link/button click(ie when the child form opens)andreappear when i exit the child form .All this should happen within the MDI or the parent form and no new window should be opened in the taskbar ..

Okay..

After you show the form set the visibility of the control to false.

Form1 frm = new Form1();
frm.MdiParent = this;
frm.Show();
btnShowForm1.Visible = false;

and on the form_closing event set the visibility of the control to true.
Suppose your MDI parent Form name is MDIParent1

then in the form_closing method

MDIParent1 parentForm = (MDIParent1) this.MdiParent ;
parentForm.btnShowForm1.Visible = true;

---

Prasant

Okay..

After you show the form set the visibility of the control to false.

Form1 frm = new Form1();
frm.MdiParent = this;
frm.Show();
btnShowForm1.Visible = false;

and on the form_closing event set the visibility of the control to true.
Suppose your MDI parent Form name is MDIParent1

then in the form_closing method

MDIParent1 parentForm = (MDIParent1) this.MdiParent ;
parentForm.btnShowForm1.Visible = true;

---

Prasant