Window.RestoreBounds Vlastnost

Definice

Obor názvů:

System.Windows

Sestavení:

PresentationFramework.dll

Získá velikost a umístění okna před minimalizací nebo maximalizací.

public:
 property System::Windows::Rect RestoreBounds { System::Windows::Rect get(); };

public System.Windows.Rect RestoreBounds { [System.Security.SecurityCritical] get; }

public System.Windows.Rect RestoreBounds { get; }

[<get: System.Security.SecurityCritical>]
member this.RestoreBounds : System.Windows.Rect

member this.RestoreBounds : System.Windows.Rect

Public ReadOnly Property RestoreBounds As Rect

Hodnota vlastnosti

Rect

Určuje Rect velikost a umístění okna před minimalizací nebo maximalizací.

Atributy

SecurityCriticalAttribute

Příklady

Následující příklad používá RestoreBounds a izolované úložiště k zajištění velikosti a umístění okna je stejné jako v předchozím okamžiku, kdy se okno zobrazilo.

<Window x:Class="WindowRestoreBoundsSnippets.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WindowRestoreBoundsSnippets"
    Closing="MainWindow_Closing"
    >

</Window>

using System;
using System.ComponentModel;
using System.IO;
using System.IO.IsolatedStorage;
using System.Windows;

Imports System.ComponentModel
Imports System.IO
Imports System.IO.IsolatedStorage
Imports System.Windows

public partial class MainWindow : Window {

  string filename = "settings.txt";

  public MainWindow() {
    InitializeComponent();

    // Refresh restore bounds from previous window opening
    IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForAssembly();
    try {
      using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(this.filename, FileMode.Open, storage))
      using (StreamReader reader = new StreamReader(stream)) {

        // Read restore bounds value from file
        Rect restoreBounds = Rect.Parse(reader.ReadLine());
        this.Left = restoreBounds.Left;
        this.Top = restoreBounds.Top;
        this.Width = restoreBounds.Width;
        this.Height = restoreBounds.Height;
      }
    }
    catch (FileNotFoundException ex) {
      // Handle when file is not found in isolated storage, which is when:
      // * This is first application session
      // * The file has been deleted
    }
  }

  void MainWindow_Closing(object sender, CancelEventArgs e) {
    // Save restore bounds for the next time this window is opened
    IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForAssembly();
    using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(this.filename, FileMode.Create, storage))
    using (StreamWriter writer = new StreamWriter(stream)) {
      // Write restore bounds value to file
      writer.WriteLine(this.RestoreBounds.ToString());
    }
  }
}

Partial Public Class MainWindow
    Inherits Window

    Private filename As String = "settings.txt"

    Public Sub New()
        InitializeComponent()

        ' Refresh restore bounds from previous window opening
        Dim storage As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForAssembly()
        Try
            Using stream As New IsolatedStorageFileStream(Me.filename, FileMode.Open, storage)
                Using reader As New StreamReader(stream)

                    ' Read restore bounds value from file
                    Dim restoreBounds As Rect = Rect.Parse(reader.ReadLine())
                    Me.Left = restoreBounds.Left
                    Me.Top = restoreBounds.Top
                    Me.Width = restoreBounds.Width
                    Me.Height = restoreBounds.Height
                End Using
            End Using
        Catch ex As FileNotFoundException
            ' Handle when file is not found in isolated storage, which is when:
            ' * This is first application session
            ' * The file has been deleted
        End Try

    End Sub

    Private Sub MainWindow_Closing(ByVal sender As Object, ByVal e As CancelEventArgs)
        ' Save restore bounds for the next time this window is opened
        Dim storage As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForAssembly()
        Using stream As New IsolatedStorageFileStream(Me.filename, FileMode.Create, storage)
            Using writer As New StreamWriter(stream)
                ' Write restore bounds value to file
                writer.WriteLine(Me.RestoreBounds.ToString())
            End Using
        End Using
    End Sub
End Class

Poznámky

Obdélník obnovení je oblast obsazená oknem před minimalizací nebo maximalizací. Můžete použít RestoreBounds k uložení poslední velikosti a umístění okna před zavřením aplikace a načtení těchto hodnot při příštím spuštění aplikace obnovit okno tak, jak ho uživatel opustil.

Pokud dotazujete RestoreBounds před zobrazením okna nebo po jeho zavření, Empty vrátí se.

Poznámka

Tuto vlastnost nelze získat, když je okno hostované v prohlížeči.