Window.RestoreBounds Property

 

Gets the size and location of a window before being either minimized or maximized.

Namespace:   System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)

Public ReadOnly Property RestoreBounds As Rect

Property Value

Type: System.Windows.Rect

A Rect that specifies the size and location of a window before being either minimized or maximized.

The restore rectangle is the region occupied by the window before it was minimized or maximized. You can use RestoreBounds to save the last size and location of a window before an application is closed, and retrieve those values the next time an application starts to restore a window to the way a user left it.

If you query RestoreBounds before the window has been shown or after it has been closed, Empty is returned.

System_CAPS_noteNote

You cannot get this property when a window is hosted in a browser.

The following example uses RestoreBounds and isolated storage to ensure the size and location of a window are the same as they were the previous time the window was shown.

<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>

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

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

UIPermission

for permission to query for the size and location of a window's bounding rectangle. Associated enumeration: AllWindows

.NET Framework
Available since 3.0
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