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Question - Patch - Is it possible to patch a record variable or context?

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Posted on by Owizardo

Hi,

I have a simple app divded into 2 screens. One screen is a gallery with many items. Onclick, I transfert ThisItem over tot he next screen. So far everything is working flawless.

Now the problem I have is that at somepoint, I need to be able to patch ThisItem when inputs or dropdowns are changed. This allows me to keep my background data and interface in sync so that on save I can easily grab ThisItem and update my Sharepoint list.

However, Patch does not seem to work on variables or Context (Set() or UpdateContext()). So mmy solution was to create a collection and on the default of the input I do something like First(Collection). In thoery this would work but seems clunky and messy.

I could also do UpdateContext directly but since it comes from Sharepoint, it adds a bunch of hidden columns that becomes impossible to work with in a clean fashion.

Im wondering if anyone knows of a better way to update a Context via Patch() somehow?

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Building Power Apps

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RandyHayes 76,299 Super User 2024 Season 1 on at

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This may not completely address your situation, but it sparked my response because I do see this often...
What gets missed sometimes is that Patch actually *returns* the results. (think about that for a moment).

Example: let's say you store ThisItem in a variable - Set(myItem, ThisItem)

So, doing a:
Patch(myItem, {someField:someValue})
will do very little for you. What you really want is:
Set(myItem, Patch(myItem, {someField:someValue}))
This will update the variable myItem with the changes you want.

Of course, this is ONLY for the local variable/copy of that information. If you want to push that back to the data source, you will eventually need to do a Patch(dataSource, recordToChange, myItem)

Hope this gives you some help.
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KroonOfficeSol 587 on at

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@RandyHayes really nice approach I must say

@Owizardo
Another solution is not to use a variable but a collection to store your ThisItem, so like
ClearCollect(_ThisItemTemp, ThisItem)
You can easily patch this collection and right it back to the SharePoint I would think.

Hope this helps to,

Paul