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.NET Development

Silverlight

.NET Framework Class Library for Silverlight

System.Windows

Analytics Class

Application Class

ApplicationServiceContext Class

ApplicationUnhandledExceptionEventArgs Class

AssemblyPart Class

AssemblyPartCollection Class

CheckAndDownloadUpdateCompletedEventArgs Class

CheckAndDownloadUpdateCompletedEventHandler Delegate

Clipboard Class

CornerRadius Structure

CrossDomainAccess Enumeration

DataFormats Class

DataObject Class

DataTemplate Class

DataTemplateKey Class

DependencyObject Class

DependencyObjectCollection(T) Class

DependencyProperty Class

DependencyPropertyChangedEventArgs Structure

DependencyPropertyChangedEventHandler Delegate

Deployment Class

DragEventArgs Class

DragEventHandler Delegate

Duration Structure

DurationConverter Class

ElevatedPermissions Enumeration

EventTrigger Class

ExceptionRoutedEventArgs Class

ExceptionRoutedEventHandler Delegate

Expression Class

ExtensionPart Class

ExternalPart Class

ExternalPartCollection Class

FlowDirection Enumeration

FontCapitals Enumeration

FontEastAsianLanguage Enumeration

FontEastAsianWidths Enumeration

FontFraction Enumeration

FontNumeralAlignment Enumeration

FontNumeralStyle Enumeration

FontStretch Structure

FontStretches Class

FontStyle Structure

FontStyles Class

FontVariants Enumeration

FontWeight Structure

FontWeights Class

FrameworkElement Class

FrameworkTemplate Class

GpuInformation Class

GridLength Structure

GridUnitType Enumeration

HierarchicalDataTemplate Class

HorizontalAlignment Enumeration

IApplicationLifetimeAware Interface

IApplicationService Interface

Icon Class

IconCollection Class

IDataObject Interface

InBrowserSettings Class

InstallState Enumeration

LayoutCycleException Class

LineStackingStrategy Enumeration

MediaFailedRoutedEventArgs Class

MediaFailedRoutedEventHandler Delegate

MessageBox Class

MessageBoxButton Enumeration

MessageBoxResult Enumeration

NotificationWindow Class

NullableBoolConverter Class

OutOfBrowserSettings Class

Point Structure

PresentationFrameworkCollection(T) Class

PropertyChangedCallback Delegate

PropertyMetadata Class

PropertyPath Class

PropertyPathConverter Class

Rect Structure

ResourceDictionary Class

RoutedEvent Class

RoutedEventArgs Class

RoutedEventHandler Delegate

RoutedPropertyChangedEventArgs(T) Class

RoutedPropertyChangedEventHandler(T) Delegate

SecuritySettings Class

Setter Class

SetterBase Class

SetterBaseCollection Class

Size Structure

SizeChangedEventArgs Class

SizeChangedEventHandler Delegate

StartupEventArgs Class

StartupEventHandler Delegate

Style Class

StyleTypedPropertyAttribute Class

SystemColors Class

SystemParameters Class

TemplateBindingExpression Class

TemplatePartAttribute Class

TemplateVisualStateAttribute Class

TextAlignment Enumeration

TextDecorationCollection Class

TextDecorations Class

TextTrimming Enumeration

TextWrapping Enumeration

Thickness Structure

TriggerAction Class

TriggerActionCollection Class

TriggerBase Class

TriggerCollection Class

UIElement Class

VerticalAlignment Enumeration

Visibility Enumeration

VisualState Class

VisualStateChangedEventArgs Class

VisualStateGroup Class

VisualStateManager Class

VisualTransition Class

Window Class

WindowCollection Class

WindowResizeEdge Enumeration

WindowSettings Class

WindowStartupLocation Enumeration

WindowState Enumeration

WindowStyle Enumeration

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StartupEventHandler Delegate

Silverlight

Represents the method that will handle the Application.Startup event.

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

Copy

public delegate void StartupEventHandler(
	Object sender,
	StartupEventArgs e
)

Parameters

sender: Type: System.Object
The object that raised the event.

e: Type: System.Windows.StartupEventArgs
The event data.

The following code shows how to handle the Startup event.

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using System.Windows; // Application, StartupEventArgs

namespace SilverlightApplication
{
    public partial class App : Application
    {
        public App()
        {
            this.Startup += this.Application_Startup;
            InitializeComponent();
        }

        private void Application_Startup(object sender, StartupEventArgs e)
        {
            // Detect when the application starts up.
        }
    }
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Reference

System.Windows Namespace

Application.Startup

StartupEventArgs

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