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Thumbnails for Attached Images before submitting Canvas app form

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Posted on by MTNK

819 Super User 2025 Season 2

I am looking to add rule in my canvas app to show thumbnail for every image attached in Attachments before submitting canvas app form.

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Building Power Apps

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WarrenBelz 153,084 Most Valuable Professional on at

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Hi @mtsts ,

I have a blog that may assist you here.

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

MVP (Business Applications) Visit my blog Practical Power Apps

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MTNK 819 Super User 2025 Season 2 on at

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I could not figure out from the blog.
My question was - when I am adding attachment(shared screenshot), is it possible I can list of images instead of link while adding attachment or when I see any old record in the history of issues created with my app.
(I built a power app with SharePoint list and my app is being used to collect information.)

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Mitanshu 1,650 Moderator on at

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In the Power App above, as you add or remove items in the attachment control, the gallery on the right side updates with corresponding pictures and file name.

To achieve this, I added a gallery with Items property as (you will have to change name of the control):

attachControl.Attachments

I added a Image and label inside the gallery

Image: ThisItem.Value Label: ThisItem.Name

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If this post or my previous reply was useful in other ways, please consider giving it Thumbs Up.

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WarrenBelz 153,084 Most Valuable Professional on at

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@mtsts ,

What is it in the blog that needs clarification - it does exactly what you are referring to.

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MTNK 819 Super User 2025 Season 2 on at

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Attached image for the reference.

Screenshot 2024-0...

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WarrenBelz 153,084 Most Valuable Professional on at

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@mtsts ,

Please read the blog again. That code is for SharePoint Library files - there is a separate item for attachments.

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MTNK 819 Super User 2025 Season 2 on at

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I referred Attachments section and getting error after that. Attached image for reference.

Screenshot 2024-0...

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WarrenBelz 153,084 Most Valuable Professional on at

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@mtsts ,

You need to use your actual gallery name . . .

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MTNK 819 Super User 2025 Season 2 on at

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This is the form made with power apps for user to collect data. and the purpose is when user add image, the user can see image what he added or as admin I can from history of records added in power apps and I can see images instead of links.
And user can add images from the device( recents, downloads etc. from ipad or windows). I hope I explained it as needed.

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MTNK 819 Super User 2025 Season 2 on at

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This is the form made with power apps for user to collect data. and the purpose is when user add attachments, the user can see image or as admin I can see from history of records added in power apps by clicking particular record without downloading it and I can see images instead of links.
Additionally, user can add images from the gallery of user's device(recents, downloads etc. from ipad or windows). I hope I explained it as needed.

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