单例窗体

 当前页面代码 点击事件

 private void tsbStudent_Click(object sender, EventArgs e)        {            FrmStudent frm = FrmStudent.Instance;            frm.MdiParent = this;            frm.Show();        }

 

//需要前往的页面代码    

private static FrmStudent instance;        public static FrmStudent Instance        {            get {                if (instance == null || instance.IsDisposed)                {                    instance = new FrmStudent();                }                return instance;            }                   }        private FrmStudent()        {            InitializeComponent();        }

转载于:https://www.cnblogs.com/eric-gms/p/3452729.html

相关资源：C# 窗体的单例模式