private void menu_btn_Click(object sender, EventArgs e)
{
if (menuPage == null)
{
menuPage = new admenuPage(); //Create form if not created
menuPage.FormClosed += menuPage_FormClosed; //Add eventhandler to cleanup after form closes
InitializeComponent();
menuPage.Show(this); //Show Form assigning this form as the forms owner
}
}
void menuPage_FormClosed(object sender, FormClosedEventArgs e)
{
menuPage = null;
Show();
}