private void librarian_Btn_Click(object sender, EventArgs e) { Librarian_Control1.Show(); borrowcontrol1.Hide(); book_Control1.Hide(); records1.Hide(); studentControl1.Hide(); adminPanel1.Hide(); sidepanel.Height = librarian_Btn.Height; sidepanel.Top = librarian_Btn.Top; librarian_Btn.BringToFront(); welcomeLB.Hide(); }