ApplicationUnhandledExceptionEventArgs Class
Provides data for the Application.UnhandledException event.
Namespace: System.Windows
Assembly: System.Windows (in System.Windows.dll)
The ApplicationUnhandledExceptionEventArgs type exposes the following members.
| Name | Description | |
|---|---|---|
![]() ![]() | ApplicationUnhandledExceptionEventArgs | Initializes a new instance of the ApplicationUnhandledExceptionEventArgs class. |
| Name | Description | |
|---|---|---|
![]() ![]() | ExceptionObject | Gets or sets the unhandled exception. |
![]() ![]() | Handled | Gets or sets a value that indicates whether the exception is handled. |
| Name | Description | |
|---|---|---|
![]() ![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() ![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
![]() ![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() ![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() ![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() ![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
Application.UnhandledException uses the generic EventHandler<TEventArgs> and this ApplicationUnhandledExceptionEventArgs class for event data.
The ExceptionObject property provides information about the unhandled exception. Set the Handled property to true to prevent additional processing of the exception after your UnhandledException handler completes.
The following example shows how to handle and use the UnhandledException event.
using System.IO; // FileNotFoundException using System.Windows; // Application, StartupEventArgs, ApplicationUnhandledExceptionEventArgs namespace SilverlightApplication { public partial class App : Application { public App() { this.Startup += this.Application_Startup; this.UnhandledException += this.Application_UnhandledException; InitializeComponent(); } private void Application_Startup(object sender, StartupEventArgs e) { this.RootVisual = new Page(); } private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e) { if (e.ExceptionObject is FileNotFoundException) { // Inform the user // Recover from the error e.Handled = true; return; } // Exception is unrecoverable so stop the application and allow the // Silverlight plug-in control to detect and process the exception. } } }
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.



