Random Letter Generator (Advanced)

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Posted on by Courtney

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Hi Everyone.

I have 3 text labels that are set to randomly generate 1 letter each between A to F.

The user has the option to select a different letter which is also generated at random (on select) between A to F.

What I need is to figure out how to make sure that the letter generated will not be a duplicate of one of the other letters already on screen.

Here is the code i have so far.

ClearCollect(Letters,Split("ABCDEF",""));ClearCollect(Letters1,Split("ABCDEF",""));ClearCollect(Letters2,Split("ABCDEF",""));ClearCollect(Letters3,Split("ABCDEF",""));UpdateContext({UpperCaseValue:""});Set(box1, false );Set(box2, false );Set(input3, false );Set(input2, false );Set(input1, false );Set(cover1, false );Set(cover2, false );Set(cover3, false );Set(reason1, false );Set(reason2, false );Set(reason3, false );Set(amendblock, false );Set(submitblock, false );Set(randletter,First(Shuffle(Letters)).Result);Set(randletter1,First(Shuffle(Filter(Letters,Result<>randletter))).Result);Set(randletter2,First(Shuffle(Filter(Letters,Result<>randletter,Result<>randletter1))).Result);Set(randletter3,First(Shuffle(Letters)).Result)

Any ideas on this would be great.

Thanks.

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There is a function called shuffle which should do the job you're after wonderfully.

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-shuffle

Basically to get three numbers create a table of letters and store in a collection, here called colAlphabet and then you can clearcollect like this ClearCollect(colThreeLetters,FirstN(Shuffle(colAlphabet),3))

The first N will return the first three letters from the shuffle which will ensure that none are duplicated.

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Courtney 261 on at

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Is it possible to use the (If) formula to exclude repeating letters which are already visible on other labels?

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