Class Application

Encapsulates the app and its available services.

Inheritance

System.Object

Application

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: System.Windows

Assembly: OpenSilver.dll

Syntax

public class Application

Constructors

Application()

Declaration

public Application()

Application(String)

Declaration

public Application(string rootDivId)

Parameters

Type	Name	Description
System.String	rootDivId

Properties

ApplicationLifetimeObjects

Declaration

public IList ApplicationLifetimeObjects { get; }

Property Value

Type	Description
System.Collections.IList

Current

Gets the Application object for the current application.

Declaration

public static Application Current { get; }

Property Value

Type	Description
Application

HasElevatedPermissions

Declaration

[NotImplemented]
public bool HasElevatedPermissions { get; set; }

Property Value

Type	Description
System.Boolean

Host

Gets various details about the application's host.

Declaration

public Host Host { get; }

Property Value

Type	Description
Host

InstallState

Gets the current out-of-browser installation state of the application.

Declaration

[NotImplemented]
public InstallState InstallState { get; }

Property Value

Type	Description
InstallState	The out-of-browser installation state of the application.

IsRunningOutOfBrowser

Declaration

[NotImplemented]
public bool IsRunningOutOfBrowser { get; }

Property Value

Type	Description
System.Boolean

MainWindow

Gets the application main window.

Declaration

public Window MainWindow { get; }

Property Value

Type	Description
Window

Resources

Gets a collection of application-scoped resources, such as styles, templates, and brushes.

Declaration

public ResourceDictionary Resources { get; set; }

Property Value

Type	Description
ResourceDictionary

RootVisual

Gets or sets the main application UI. This is an alias for the Content of this application's MainWindow.

Declaration

public UIElement RootVisual { get; set; }

Property Value

Type	Description
UIElement

Theme

Gets or sets the Theme used across this Application.

Declaration

public Theme Theme { get; set; }

Property Value

Type	Description
Theme

Windows

Gets a collection of the Window instances that have been created.

Declaration

public WindowCollection Windows { get; }

Property Value

Type	Description
WindowCollection	A collection of the windows used by the application.

Methods

CheckAndDownloadUpdateAsync()

Declaration

[NotImplemented]
public void CheckAndDownloadUpdateAsync()

GetResourceStream(Uri)

Returns a resource file from a location in the application package.

Declaration

public static Task<StreamResourceInfo> GetResourceStream(Uri uriResource)

Parameters

Type	Name	Description
System.Uri	uriResource	A relative URI that identifies the resource file to be loaded. The URI is relative to the application package and does not need a leading forward slash.

Returns

Type	Description
System.Threading.Tasks.Task<StreamResourceInfo>	A StreamResourceInfo that contains the stream for the desired resource file.

Exceptions

Type	Condition
System.ArgumentNullException	uriResource is null.
System.ArgumentException	uriResource is an absolute URI.

GetResourceStream(StreamResourceInfo, Uri)

Declaration

[NotImplemented]
public static StreamResourceInfo GetResourceStream(StreamResourceInfo zipPackageStreamResourceInfo, Uri uriResource)

Parameters

Type	Name	Description
StreamResourceInfo	zipPackageStreamResourceInfo
System.Uri	uriResource

Returns

Type	Description
StreamResourceInfo

GetResourceString(Uri)

Returns a string that contains the content of the file that is located at the specified System.Uri.

Declaration

public static Task<string> GetResourceString(Uri uriResource)

Parameters

Type	Name	Description
System.Uri	uriResource	The System.Uri that maps to an embedded resource.

Returns

Type	Description
System.Threading.Tasks.Task<System.String>	A string that contains the content of the file that is located at the specified System.Uri.

Install()

Attempts to install the application so that it can run outside the browser.

Declaration

[NotImplemented]
public bool Install()

Returns

Type	Description
System.Boolean	true if the user gave consent to install the application or the application requires elevated trust; otherwise, false. See Remarks for more information.

Exceptions

Type	Condition
System.InvalidOperationException	The application is already installed.-or-The application is hosted at a URI with a scheme other than http, https, or file.

LoadComponent(Object, IXamlComponentLoader)

Declaration

public static void LoadComponent(object component, IXamlComponentLoader loader)

Parameters

Type	Name	Description
System.Object	component
IXamlComponentLoader	loader

LoadComponent(Object, Uri)

Create logic tree from given resource Locator, and associate this tree with the given component.

Declaration

public static void LoadComponent(object component, Uri resourceLocator)

Parameters

Type	Name	Description
System.Object	component	Root Element
System.Uri	resourceLocator	Resource Locator

OnExit(EventArgs)

Raises the Exit event

Declaration

protected virtual void OnExit(EventArgs eventArgs)

Parameters

Type	Name	Description
System.EventArgs	eventArgs	The arguments for the event.

OnLaunched(LaunchActivatedEventArgs)

Invoked when the application is launched. Override this method to perform application initialization and to display initial content in the associated Window.

Declaration

protected virtual void OnLaunched(LaunchActivatedEventArgs args)

Parameters

Type	Name	Description
LaunchActivatedEventArgs	args	Event data for the event.

TryFindResource(Object)

Searches for the specified resource.

Declaration

public object TryFindResource(object resourceKey)

Parameters

Type	Name	Description
System.Object	resourceKey	The name of the resource to find.

Returns

Type	Description
System.Object	The requested resource object. If the requested resource is not found, a null reference is returned.

Events

CheckAndDownloadUpdateCompleted

Declaration

[NotImplemented]
public event CheckAndDownloadUpdateCompletedEventHandler CheckAndDownloadUpdateCompleted

Event Type

Type	Description
CheckAndDownloadUpdateCompletedEventHandler

Exit

Occurs just before an application shuts down and cannot be canceled.

Declaration

public event EventHandler Exit

Event Type

Type	Description
System.EventHandler

InstallStateChanged

Occurs when the InstallState property value changes.

Declaration

[NotImplemented]
public event EventHandler InstallStateChanged

Event Type

Type	Description
System.EventHandler

Startup

Occurs when an application is started.

Declaration

public event StartupEventHandler Startup

Event Type

Type	Description
StartupEventHandler

UnhandledException

Occurs when an exception that is raised is not handled.

Declaration

public event EventHandler<ApplicationUnhandledExceptionEventArgs> UnhandledException

Event Type

Type	Description
System.EventHandler<ApplicationUnhandledExceptionEventArgs>