cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Anonymous
Not applicable

Display image from Sharepoint Library. Authentication Problem?

Hello,

 I Have an app that loads Images from Sharepoint Library. Images are in a gallery and It works fine when developping the app.

 

However, when its deployed to new devices, the images doesn't show. The only way to make them show is by opening a new tab and opening the sharepoint site which the document library resides in.  (And this is not a one time process. You have to keep doing it from time to time)

 

This is not practical when deplying the app to a large number of devices. 
 What is causing this issue and how can i Fix it?

 

thanks

2 ACCEPTED SOLUTIONS

Accepted Solutions

Hi @Anonymous 

I can confirm that I have just changed 600 images to URI and they now load from my sharepoint list on all devices (Android / IOS) for all users.

View solution in original post

@JMAFO @Anonymous @Anonymous @Newbie2019 @robinwong 

 

You can view highly compressed and equally high quailty renditions Images or Photos files stored in any Document Library by using the {Thumbnail} property for any given image/photo or file (eg.Word documents,, PowerPoint, HTML files etc) :

 

Assuming you have added a SharePoint Connector to your app associated with Document Library, have added a Gallery control your app associated to that Document Library, you can thereafte simply add an image control to the Gallery and set it's properties as follows:

 

ThisItem.'{Thumbnail}'.Small
ThisItem.'{Thumbnail}'.Medium
ThisItem.'{Thumbnail}'.Large

 

Should you, for example, on selecting a specific row in the gallery whereby a pop-up windows appears containing an larger rendition of that same image/photo in another Image control, all you need to do is set the Image property on that control specifying the following base syntax:

 

Gallery1.Selected.'{Thumbnail}'.Large

 

The URL of the 'returned for sat the '{Thumbnail}'.Large property will look something like as follows:

 

https://...-mediap.svc.ms/transform/thumbnail?provider=spo&inputFormat=jpg&cs=fFNQTw&correlationId=GUID&docid=https%3A%2F%contoso%2Esharepoint%2Ecom%2F%5Fapi%2Fv2%2E0%2Fdrives%2Fb%21LR...Gwl%2Dh...bm%2Fitems%2F01.....HCL%3Ftempauth%3DeyJ…aXw0%26version%3DPublished&width=800&height=800

Note the URL (for a large thumbnail) ends with: &width=800&height=800

 

It is supported, albeit this blog from Chaks (a Senior Program Manager at Microsoft) describes how you can do this with the Graph APIs, this has since been implemented nataively in the SharePoint Connector per my blog post early this year:

https://masteroffice365.com/sharepoint-powered-thumbnails/

 

If you alternatively wish to view an ultra-high quality and equally superbly optimized rendition for any given photo, that by all accounts you'll never even be able to tell the difference between the 0.5Mb - 1Mb maximum size of the rendition compared even a 50Mb file of the original image, you can simply use the substitute function to replace the &width=800&height=800 in the thumbnail URL exposed with whatever values you want. For example:

 

Substitute( Gallery1.Selected.Thumbnail, “&width=800&height=800”, “&width=4096&height=4096” )

The Graph APIs do support specified custom thumbnails size, and as such this really is no different to what you can in case do with the Graph APIs. This technique is simply far easier to implement, and can be entirely dynamically set at runtime as and where you may wish to leverage it. Much like I have done in the lastest blog and corrosponding demo video I've recently published. 

https://youtu.be/vSbwmHfqK3c

https://masteroffice365.com/powerapps

View solution in original post

28 REPLIES 28
v-monli-msft
Community Support
Community Support

Hi @Anonymous,

 

How did you set in PowerApps to make the image show? Did you set below formula in the Image property of the Image control inside the Gallery control?

 

 ‘{Link}’ 

If so, then it is known that this only works in the web version of PowerApps - not on devices. To make it work on devices,  you could try to convert the SharePoint images to its URI (Uniform Resource Identifier) form and bind the image control to that. The URI is basically a long text representation of the image/picture.
Do the following:

  • In SharePoint, create an additional text column in my library and named it 'imageDataUri'
  • In Microsoft Flow, I created a Flow that fires whenever a new SharePoint list item is created, checks to see if the list item is an image (based on the file extension), and if it is, converts its content to its URI format and saves the text in the list items 'imageDataUri' field
  • In PowerApps, instead of binding my image control to the SharePoint image URL, I bound it to the data URI field of the list item instead.

Below is the marked key section of my Flow that does the conversion to the URI format:

flowsp2.png

 

The formula looks as follows:

dataUri(binary(body('Get_file_content')))

The body('Get_file_content') is a reference to the previous step in which you need to fetch the actual content of the file (image in my case) from SharePoint.

 

Regards,

Mona

 

Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Anonymous
Not applicable

Thank you for the Reply!

 

 er... I Think i failed to mention something..

Well the Images are in a Document Library. But There is a Sharepoint List that has a column called "ImageURL" which contains the URL's of the images in the document library. 

 Ex:
 /*mysite*/Shared%20Documents/Images/1.jpg
 /*mysite*/Shared%20Documents/Images/2.jpg


So inside powerapps, what im doing is just adding a Media > Image

 and for the IMAGE property, im saying "Thisitem.ImageURL

 

shouldn't this work? 
😕

 

And for your method, wouldn't DataURI's size be large as the image's size? 

And I have alot of images in the Document library. 
 The app is just Retrieving the Image related to a dropdown box selection.
Maybe we can use Flow to retrieve the image from the document library using ur method?

 

Thank you again..!

Anonymous
Not applicable

No Solutions?

Anonymous
Not applicable

Hey Aragorn- did you ever find a solution to this? I am having the same troubles as you did with my app.

Hi @Anonymous 

I can confirm that I have just changed 600 images to URI and they now load from my sharepoint list on all devices (Android / IOS) for all users.

JMAFO
Helper V
Helper V

Using the flow to convert the image to URI is extremely slow and causes the image library to no longer open up.. is this expected behavior?

Hi @JMAFO , I had issues with using flow and an image library so placed them all in a standard sharepoint list. The column type is multiple line of text.

 

I used an online convertor as flow was to slow.

 

Cheers

@Newbie2019 thanks for the reply! So to get this clear, you used a standard SharePoint list with the multi line column that stored the data uri and then connected to that list via PowerApps data connection? Did you include the images as attachments on the list?

@JMAFO Yeah, use a standard SharePoint list with a multiline column. I simply click to add a new entry and paste the into that column. For example I called my multi column imageDataURI as below:

URI.JPG

 

I then display the mage in powerapps gallery by doing a lookup based on a name which is displayed against the URI in the title column.

 

Let me know if this works.

 

Cheers

Helpful resources

Announcements

Celebrating the May Super User of the Month: Laurens Martens

  @LaurensM  is an exceptional contributor to the Power Platform Community. Super Users like Laurens inspire others through their example, encouragement, and active participation. We are excited to celebrated Laurens as our Super User of the Month for May 2024.   Consistent Engagement:  He consistently engages with the community by answering forum questions, sharing insights, and providing solutions. Laurens dedication helps other users find answers and overcome challenges.   Community Expertise: As a Super User, Laurens plays a crucial role in maintaining a knowledge sharing environment. Always ensuring a positive experience for everyone.   Leadership: He shares valuable insights on community growth, engagement, and future trends. Their contributions help shape the Power Platform Community.   Congratulations, Laurens Martens, for your outstanding work! Keep inspiring others and making a difference in the community!   Keep up the fantastic work!        

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started: https://aka.ms/CS_Copilot_Cookbook_Gallery   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!      

Tuesday Tip | How to Report Spam in Our Community

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Community Roundup: A Look Back at Our Last 10 Tuesday Tips

As we continue to grow and learn together, it's important to reflect on the valuable insights we've shared. For today's #TuesdayTip, we're excited to take a moment to look back at the last 10 tips we've shared in case you missed any or want to revisit them. Thanks for your incredible support for this series--we're so glad it was able to help so many of you navigate your community experience!   Getting Started in the Community An overview of everything you need to know about navigating the community on one page!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Ranks and YOU Have you ever wondered how your fellow community members ascend the ranks within our community? We explain everything about ranks and how to achieve points so you can climb up in the rankings! Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Powering Up Your Community Profile Your Community User Profile is how the Community knows you--so it's essential that it works the way you need it to! From changing your username to updating contact information, this Knowledge Base Article is your best resource for powering up your profile. Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Blogs--A Great Place to Start There's so much you'll discover in the Community Blogs, and we hope you'll check them out today!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Unlocking Community Achievements and Earning Badges Across the Communities, you'll see badges on users profile that recognize and reward their engagement and contributions. Check out some details on Community badges--and find out more in the detailed link at the end of the article! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Blogging in the Community Interested in blogging? Everything you need to know on writing blogs in our four communities! Get started blogging across the Power Platform communities today! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Subscriptions & Notifications We don't want you to miss a thing in the community! Read all about how to subscribe to sections of our forums and how to setup your notifications! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Getting Started with Private Messages & Macros Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Community User Groups Learn everything about being part of, starting, or leading a User Group in the Power Platform Community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Update Your Community Profile Today! Keep your community profile up to date which is essential for staying connected and engaged with the community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Thank you for being an integral part of our journey.   Here's to many more Tuesday Tips as we pave the way for a brighter, more connected future! As always, watch the News & Announcements for the next set of tips, coming soon!

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today! https://aka.ms/PowerUp  

Top Solution Authors
Top Kudoed Authors
Users online (4,875)