D23_01_window class RegistryKey Rect

<Windowx:class= "Demo." MainWindow "xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"Title= "MainWindow"Height= " the"Width= "525">    <StackPanelMargin= "5">        <ButtonMargin= "2"Click= "ShowWindow">Show Window</Button>        <ButtonMargin= "2"Click= "Button_Click">Close Me</Button>        <ButtonMargin= "2"Click= "Button_click_1">Center Me</Button>        <ButtonMargin= "2"Click= "Button_click_2">Save Position and Size (configuration file mode)</Button>        <ButtonMargin= "2"Click= "Button_click_3">Restore Position and Size (registry mode)</Button>    </StackPanel></Window>

MainWindow (Form Class)

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Windows;usingSystem.Windows.Controls;usingSystem.Windows.Data;usingSystem.Windows.Documents;usingSystem.Windows.Input;usingSystem.Windows.Media;usingSystem.Windows.Media.Imaging;usingSystem.Windows.Navigation;usingSystem.Windows.Shapes;namespacedemo{/// <summary>    ///the interactive logic of MainWindow.xaml/// </summary>     Public Partial classMainwindow:window { PublicMainWindow () {InitializeComponent (); }        Private voidShowWindow (Objectsender, RoutedEventArgs e) {Taskwindow Wintask=NewTaskwindow (); //ShowDialog () means open in modal mode, you must close this window before you can manipulate other WindowsWintask.showdialog (); }        Private voidButton_Click (Objectsender, RoutedEventArgs e) {             This.        Close (); }        //Set the window position to the center of the workspace        Private voidButton_click_1 (Objectsender, RoutedEventArgs e) {            DoubleScreenHeight =SystemParameters.WorkArea.Height; DoubleScreenWidth =SystemParameters.WorkArea.Width;  This. Top = (ScreenHeight- This. Height)/2;  This. left = (ScreenWidth- This. Width)/2; }        Private voidButton_click_2 (Objectsender, RoutedEventArgs e) {            //Windowpositionhelper (Registry way to save the form's location and size)//Windowpositionhelperconfig (the location and size of the form where the configuration file is saved)Windowpositionhelper.savesize ( This); }        Private voidButton_click_3 (Objectsender, RoutedEventArgs e) {            //Windowpositionhelper (Registry way to save the form's location and size)//Windowpositionhelperconfig (the location and size of the form where the configuration file is saved)Windowpositionhelper.setsize ( This); }    }}

Windowpositionhelper

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Windows;usingMicrosoft.Win32;namespacedemo{//Windowpositionhelper (Registry way to save the form's location and size)     Public  classWindowpositionhelper { Public Static stringRegpath =@"Software\myapp";  Public Static voidSavesize (Window win) {RegistryKey key; Key= Registry.CurrentUser.CreateSubKey (Regpath +win.            Name); Key. SetValue ("Bounds", win.        Restorebounds.tostring (System.Globalization.CultureInfo.InvariantCulture)); }         Public Static voidSetSize (Window win) {RegistryKey key; Key= Registry.CurrentUser.OpenSubKey (Regpath +win.            Name); if(Key! =NULL) {rect rect= Rect.parse (key. GetValue ("Bounds").                ToString ()); Win. Top=rect.                Top; Win. Left=rect.                Left; if(Win. SizeToContent = =sizetocontent.manual) {win. Width=rect.                    Width; Win. Height=rect.                Height; }            }        }    }    //Windowpositionhelperconfig (the location and size of the form where the configuration file is saved)     Public classWindowpositionhelperconfig { Public Static voidSavesize (Window win) {Properties.Settings.Default.WindowPosition=win.            RestoreBounds;        Properties.Settings.Default.Save (); }         Public Static voidSetSize (Window win) {rect rect=Properties.Settings.Default.WindowPosition; Win. Top=rect.            Top; Win. Left=rect.            Left; if(Win. SizeToContent = =sizetocontent.manual) {win. Width=rect.                Width; Win. Height=rect.            Height; }        }    }}

D23_01_window class RegistryKey Rect