Learn how to build a Microsoft Office Add-in that connects to Microsoft Graph, finds all workbooks stored in OneDrive for Business, fetches all charts in the workbooks using the Excel REST APIs, and inserts an image of a chart into a PowerPoint slide using Office.js.

Integrating data from online service providers increases the value and adoption of your add-ins. This code sample shows you how to connect your add-in to Microsoft Graph. Use this code sample to:

• Connect to Microsoft Graph from an Office Add-in.
• Use the OAuth 2.0 authorization framework in an add-in.
• Use the Excel and OneDrive REST APIs from Microsoft Graph.
• Show a dialog using the Office UI namespace.
• Build an Add-in using ASP.NET MVC and Office.js.
• Use add-in commands in PowerPoint.

To run this code sample, the following are required.

• Visual Studio 2015.

• An Office 365 account which you can get by joining the Office 365 Developer Program that includes a free 1 year subscription to Office 365.

• Excel workbooks (with charts) stored on OneDrive for Business in your Office 365 subscription.

• PowerPoint for Windows Desktop, version 16.0.6769.2001 or higher.

• Office Developer Tools

• A Microsoft Azure Tenant. This add-in requires Azure Active Directiory (AD). Azure AD provides identity services that applications use for authentication and authorization. A trial subscription can be acquired here: Microsoft Azure.

1. In Visual Studio, choose the PowerPoint-Add-in-Microsoft-Graph-ASPNET-InsertChartWeb project. In Properties, ensure SSL Enabled is True. Verify that the SSL URL uses the same domain name and port number as those listed in step 3 below.

2. Ensure your Azure subscription is bound to your Office 365 tenant. For more information, see the Active Directory team's blog post, Creating and Managing Multiple Windows Azure Active Directories. The section Adding a new directory will explain how to do this. You can also see Set up your Office 365 development environment and the section Associate your Office 365 account with Azure AD to create and manage apps for more information.

3. Register your application using the Azure Management Portal. To learn how to register your application, see Register your browser-based web app with the Azure Management Portal. Use the following settings:

• SIGN-ON URL: https://localhost:44301/AzureADAuth/Authorize

• APP ID URI: https://localhost:44301

• REPLY URL: https://localhost:44301/AzureADAuth/Authorize

  Note: After you register your application, copy the client id and client secret that is shown in the Azure Management Portal.

4. Grant permissions to your application.

   • In the Azure Management Portal, select the Active Directory tab and an Office 365 tenant.
   • Select the Applications tab and click the application that you want to configure. Choose Configure.
   • In permissions to other applications, add Microsoft Graph.
   • In Delegated Permissions, choose Read user files and files shared with user.

5. In web.config, set AAD:ClientID to your client id, and set AAD:ClientSecret to your client secret.

1. Open the Visual Studio solution file.
2. Right-click PowerPoint-Add-in-Microsoft-Graph-ASPNET-InsertChart, and then choose Set as StartUp Project.
3. Press F5.
4. In PowerPoint, choose Insert > Pick a chart to open the task pane add-in.

• Scenario: When trying to run the code sample, the add-in will not load.
  • Resolution:
    1. In Visual Studio, open SQL Server Object Explorer.
    2. Expand (localdb)\MSSQLLocalDB > Databases.
    3. Right click PowerPoint-Add-in-Microsoft-Graph-ASPNET-InsertChart, then choose Delete.
• Scenario: When you run the code sample, you get an error on the line Office.context.ui.messageParent.
  • Resolution: Stop running the code sample and restart it.
• If download the zip file, when you extract the files you get an error indicating that the file path is too long.
  • Resolution: Unzip your files to a folder directly under the root (e.g. c:\sample).

We'd love to get your feedback about the Insert Excel charts using Microsoft Graph in a PowerPoint Add-in sample. You can send your feedback to us in the Issues section of this repository. Questions about Office 365 development in general should be posted to Stack Overflow. Ensure your questions are tagged with [office-js], [MicrosoftGraph] and [API].

• Microsoft Graph (Excel) ToDo code sample
• Microsoft Graph documentation
• Office Add-ins documentation
• Check out the video from //Build - Office Platform Overview.

Copyright (c) 2016 Microsoft Corporation. All rights reserved.

This project has adopted the Microsoft Open Source Code of Conduct. For more information, see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.