FileOpenPickerActivatedEventArgs class

Provides information about an activated event that fires when the user tries to pick files or folders that are provided by the app.

JavaScript:  This type appears as WebUIFileOpenPickerActivatedEventArgs.

Syntax

public sealed class FileOpenPickerActivatedEventArgs : Object,
    IFileOpenPickerActivatedEventArgs,
    IActivatedEventArgs

Attributes

MarshalingBehaviorAttribute(Agile)

VersionAttribute(NTDDI_WIN8)

Members

The FileOpenPickerActivatedEventArgs class has these types of members:

• Methods
• Properties

Methods

The FileOpenPickerActivatedEventArgs class inherits methods from the Object class.

Properties

The FileOpenPickerActivatedEventArgs class has these properties.

Remarks

Learn how to provide files for the user to pick from your app in Quickstart: Providing file services through file pickers and in the Windows.Storage.Pickers.Provider namespace reference.

A FileOpenPickerActivatedEventArgs object is passed to the app's activated event handler when the user wants to pick files or folders that are provided by the app. This type of activation is indicated by the ActivationKind.FileOpenPicker value that is returned by the Kind property.

Apps written in JavaScript must listen for and handle Windows.UI.WebUI.webUIApplication.activated events.

Windows Store apps built for Windows using C++, C#, or Visual Basic typically implement activation points by overriding methods of the Application object. The default template app.xaml code-behind files always include an override for OnLaunched, but defining overrides for other activation points such as OnFileOpenPickerActivated is up to your app code.

All Application overrides involved in an activation scenario should call Window.Activate in their implementations.

Examples

The File picker contracts sample demonstrates how to respond to a FileOpenPicker activation point.

// File open picker activated event handler
protected override void OnFileOpenPickerActivated(FileOpenPickerActivatedEventArgs args)
{
    var FileOpenPickerPage = new SDKTemplate.FileOpenPickerPage();
    FileOpenPickerPage.Activate(args);
}

// Overloaded method to respond to fileOpenPicker events
public void Activate(FileOpenPickerActivatedEventArgs args)
{
    // Perform tasks to prepare your app to display its file picker page

    // Get file picker UI
    fileOpenPickerUI = args.FileOpenPickerUI;

    Window.Current.Content = this;
    this.OnNavigatedTo(null);
    Window.Current.Activate();
}

For C#, args for an OnFileOpenPickerActivated override references a FileOpenPickerActivatedEventArgs object. The OnFileOpenPickerActivated override is in the App.xaml.cs file and the Activate method is in the FileOpenPickerPage.xaml.cs file of the File picker contracts sample.

Requirements

See also

Quickstart: Providing file services through file pickers

File picker contracts sample

OnFileOpenPickerActivated

Application

FileOpenPicker

Windows.Storage.Pickers.Provider namespace

Windows.UI.WebUI.WebUIApplication.Activated event

Windows.UI.Core.CoreApplicationView.Activated event

Build date: 2/25/2013