1. wpf窗体在屏幕中间显示

 public MainWindow()
        {
            InitializeComponent();
            this.WindowStartupLocation = WindowStartupLocation.CenterScreen;
        }

 private void calculator_Loaded(object sender, RoutedEventArgs e)
        {
            //this.WindowState = System.Windows.WindowState.Normal;
            //this.WindowStyle = System.Windows.WindowStyle.None;
            //this.ResizeMode = System.Windows.ResizeMode.NoResize;
            //this.Topmost = true;

            this.Left = 0.0;
            this.Top = 0.0;
            this.Width = System.Windows.SystemParameters.PrimaryScreenWidth;
            this.Height = System.Windows.SystemParameters.PrimaryScreenHeight;
        }

C#学习小结