FilePickerContracts

File picker provider sample

This sample shows how an app can provide files, a save location, and real-time file updates to other apps through the file picker by participating in the File Open Picker contract, File Save Picker contract, and Cached File Updater contract, respectively. This sample uses [Windows.Storage.Pickers.Provider]9http://msdn.microsoft.com/library/windows/apps/br207954) and Windows.Storage.Provider API.

The sample demonstrates these tasks:

1.Provide files by integrating with the File Open Picker contract Uses the following API:

• JavaScript: WebUIFileOpenPickerActivatedEventArgs class C#/C++/VB: FileOpenPickerActivatedEventArgs class method
• FileOpenPickerUI class

2.Provide a save location by integrating with the File Save Picker contract Uses the following API:

• JavaScript: WebUIFileSavePickerActivatedEventArgs class C#/C++/VB: FileSavePickerActivatedEventArgs class method
• FileSavePickerUI class

3.Provide real-time file updates by integrating with the Cached File Updater contract Uses the following API:

• JavaScript: WebUICachedFileUpdaterActivatedEventArgs class C#/C++/VB: [CachedFileUpdaterActivatedEventArgs](http://msdn.microsoft.com/library/windows/apps/hh7004400 class method
• CachedFileUpdaterUI class
• CachedFileUpdater class

Note This scenario requires the File picker sample. To learn more about integrating with file picker contracts, see Quickstart: Integrating with file picker contracts and Guidelines and checklist for file picker contracts.

Related technologies

Windows.Storage.Pickers namespace, Windows.Storage.Pickers.Provider namespace

System requirements

Client: Windows 10

Server: Windows Server 2016 Technical Preview

Phone: Windows 10

Build the sample

1. If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.
2. Start Microsoft Visual Studio 2015 and select File > Open > Project/Solution.
3. Starting in the folder where you unzipped the samples, go to the Samples subfolder, then the subfolder for this specific sample, then the subfolder for your preferred language (C++, C#, or JavaScript). Double-click the Visual Studio 2015 Solution (.sln) file.
4. Press Ctrl+Shift+B, or select Build > Build Solution.

Run the sample

The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.

Deploying the sample

• Select Build > Deploy Solution.

Deploying and running the sample

• To debug the sample and then run it, press F5 or select Debug > Start Debugging. To run the sample without debugging, press Ctrl+F5 or selectDebug > Start Without Debugging.