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Show Base64 image from Sharepoint List in an App executed in MS Teams

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Posted on by Oklaf

Hi everybody,

I have stored images als Base64 string in a sharepoint List in text column. In Powerapps I added a gallery with an image object to show the image (it is a logo). When testing the Screen the image is displayed correctly. But when I start the app in MS Teams, no image is displayed. But why doesn't it work in MS Teams and how can I solve it?

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ragavanrajan 7,044 Most Valuable Professional on at

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Hi @Oklaf ,

Please have a look at the following video by @Shanescows

https://www.youtube.com/watch?v=bIne3DD3HAg&ab_channel=ShaneYoung

He has covered everything about base64 conversion

And also two more excellent tutorial from Paul

https://www.youtube.com/watch?v=qX3i8456YwU

https://www.youtube.com/watch?v=QnDD7jleHME

And also the following thread.

https://powerusers.microsoft.com/t5/Building-Power-Apps/How-to-show-base64-images-in-PowerApps/td-p/42628

Hope it helps.

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Oklaf on at

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Hi Ragavanrajan,

thank for the reply.

Creating and storing the image data isn't the problem.

The SP list has the following data:

When I'm testing the App in the Studio the picture shows up:

But when launching the App in Teams the picture is gone:

The image data comes from the selected item of the gallery:
image: galVenueRaum.Selected.GrundrissPic
If I insert a text item and set default to the image data, the string shows up correctly.

Directly inserted picture aren't the problem. Just image Data from SP List were not shown.

O.

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Oklaf on at

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Hi,

it looks like I found the problem: in SP was saved a space character before the data string. But the space string was not shown in the overview. I try to track how the space character came into the SP.

O.

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