Hide some controls in MDI parent if a child being re-sized

Question

I want to hide some of my controls in my MDI Parent if a child is being maximized or minimized.

Answer 1

try this

//Form parent
public frmMenu()
        {
            InitializeComponent();
            pnlHide = panel1;
        }

public static Panel pnlHide= new Panel();


//Form Child
private void frmChiled_Resize(object sender, EventArgs e)
        {
            if (WindowState == FormWindowState.Maximized)
            {
                frmMenu.pnlHide.Hide();
            }
            else
            {
                frmMenu.pnlHide.Show();
            }
        }