Checkbox to turn off Auto Accriment and record last number (see pictures)

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Posted on by ShaneITAutomate

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Hi,

Im stuck on a problem that is driving me nuts, below you will see an image of my test app,

This app currently uses the labels to make sure the user is using the correct text format which is in the range ZZ000001 - ZZ999999,

The text input is collected into the gallery and also uses the following onchange in the text input

If(Value(Right(SampleIDTEXTINPUT.Text,5))>000001&&Value(Right(SampleIDTEXTINPUT.Text,5))<999999&&IsMatch(Left(SampleIDTEXTINPUT.Text,2),"ZZ"),true,Notify("**Format of entered value should like ZZ000001**",NotificationType.Error);Reset(SampleIDTEXTINPUT))

when the app loads the intial text input needs to be blank and im currently im using the following in the default of the text input

If(IsBlank(Gallery1.AllItems),"", NextSampleID.Text)

I need the checkbox added to turn off the text formating so the user can enter empty sampleID's and i also need for the app to record the last (next) sample id number for when they turn the checkbox off it starts working as normal, so they can turn it off and on again as in the following example but instead of the 000001 it should be ZZ000005 the text input always reverts back to ZZ000001 using the above default code

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Building Power Apps

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timl 37,262 Super User 2026 Season 1 on at

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@ShaneITAutomate

Can you post the formula that you're using to determine the value in your NextSampleID textbox? That's probably where the problem lies.

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ShaneITAutomate 301 on at

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@timl wrote:
@ShaneITAutomate
Can you post the formula that you're using to determine the value in your NextSampleID textbox? That's probably where the problem lies.
Thats the next sampleID text

Concatenate(First2Letters.Text,LastSubSampIDNumberPLus.Text)

The First2Letters is Just a textinput with ZZ in it and the other one is below

Text(LastSubSampIDNumber.Text + 1, "[$-en]000000")

And that one in this is below

Mid(LastSampleID.Text,3,100)

Which gets it from

Last(Gallery1.AllItems).SampleID

Hence the loop to make the numbers accrue upwards. I just want it too show the next sample id it should be and on the first time be blank so they have to put the first sample id in

Ie in the example above it should be showing ZZ000005 however if i press the checkbox it shows ZZ000001 again..

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ShaneITAutomate 301 on at

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Anyone?

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timl 37,262 Super User 2026 Season 1 on at

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@ShaneITAutomate

I'm guessing this is reverting to 1 because the last item in your gallery has a empty sample ID value. I would try filtering out the blank values:

Last(Filter(Gallery1.AllItems, SampleID <> "").SampleID

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timl 37,262 Super User 2026 Season 1 on at

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@ShaneITAutomate

Thanks for your message, and apologies about the typo - there was missing closing bracket.

Last(Filter(Gallery1.AllItems, SampleID <> "")).SampleID

I think the key to this is to make sure that you can retrieve the ZZ000004 value, and hopefully the formula above will do this. Once this part works, everything should flow smoothly from that point onwards.

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ShaneITAutomate 301 on at

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Its doesnt, i would have replied earlier but the microsoft and html data stopping me from posting and banning me for 3600secs everytime for no reason really drives me nuts

The Code just turns off the automatic accuring of text and values (Next sample Ids) and when turning the checkbox off and on it just keeps putting the same value over and over again (see pic below)

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timl 37,262 Super User 2026 Season 1 on at

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@ShaneITAutomate

Looking at you screenshot, it appears that you are determining the 'Next Sample ID' correctly - ZZ800802 in this example.

So presumably, I'm guessing that the fault lies in formula that's attached to 'Add button' button. Can you share the code that you have here? Are you calling Patch and referencing the correct sample ID?

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ShaneITAutomate 301 on at

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Its just a simple collect code,
Collect(colTEST, {Title:"Title", SampleID:SampleIDTEXTINPUT.Text})

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ShaneITAutomate 301 on at

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But the code needs to collect from the text input, the others are just labels that seperate the text into Text and numbers and then concatenates (this code is the next sampleID in that label)
Concatenate(First2Letters.Text,LastSubSampIDNumberPLus.Text)

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ShaneITAutomate 301 on at

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I think your confused as to what im trying to do,

I want the users to press the check box and the data isnt collected (i can use a simple a IF statment in the collect code and use a visibility code to make the text input hide.) Thats fine.

What i cannot figure out is somehow to save the Next Sample ID perhaps using a variable and if the user turns the check box off it changes whatever is in the text input box to the Next Sample ID (the text input under the checkbox and above the add button)

@timl

Also ive modified your code a little and now its swapping back and forth between two values.

I.e

Heres the add code

Collect(colTEST, {Title:"Title", SampleID: If(TurnOFFCHECKBOX.Value = true,"",SampleIDTEXTINPUT.Text), NextSampleID:NextSampleID.Text})

And heres the default code for the text input shown

Last(Filter(Gallery1.AllItems, NextSampleID <> "")).NextSampleID

It now goes back and forth between two values one of which is wrong, however it does keep the last sample ID

Also if i start the app fresh and press the check box straight away the text and numbers go to the first value in the auto accuring code ie ZZ000001

ie.

I want it to be blank at the start and force the user to put in a value so this onchange notify code works

If(Value(Right(SampleIDTEXTINPUT.Text,5))>000001&&Value(Right(SampleIDTEXTINPUT.Text,5))<999999&&IsMatch(Left(SampleIDTEXTINPUT.Text,2),"ZZ"),true,Notify("**Format of entered value should like ZZ000001**",NotificationType.Error);Reset(SampleIDTEXTINPUT))

I also need it to recogonise its not at the start and im adding more than one empty sample ID that it remembers the last one and deosnt go back to ZZ000001

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