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ENRM
Helper III
Helper III

Draw random numbers

Hello everyone.
I have three text input boxes, where the boxes are defined as numbers. There are "min" numbers, "max" numbers and "quantity" numbers. When I press the random button, I create a table, with numbers from the text input boxes "min" and "max". Then I draw a random "quantity it is displayed in a gallery.

Then comes the question.
I want to press the random button once and the first random number should appear in a Label on the screen. Then I should be able to press the next button and the next number will appear in Label, and previous numbers will be shown in the gallery. Is this possible to achieve in a decent and simple way?
Attaches coding to the Random button. The formula is in the Norwegian setup of power apps. A comma becomes a semicolon and a semicolon becomes a double semicolon.

 

 

 

Skjermbilde 2023-03-09 192709.png

Skjermbilde 2023-03-09 192622.png

2 ACCEPTED SOLUTIONS

Accepted Solutions
TheRobRush
Super User
Super User

OOOOOOOH OK Makes sense. Ok so Single number box 

Last(FirstN(Sort(numbersDraw,Random,SortOrder.Ascending), winningNumbers))

mulitbox below it 

Concat(FirstN(Sort(numbersDraw,Random,SortOrder.Ascending), winningNumbers-1), Value, " ")

 

then you can add a little to that all numbers box to show when all numbers have drawn say like 

Switch(winningNumbers,
       Value(TextInput3.Text),
       Concat(FirstN(Sort(numbersDraw,Random,SortOrder.Ascending), winningNumbers), Value, " "),
       Concat(FirstN(Sort(numbersDraw,Random,SortOrder.Ascending), winningNumbers-1), Value, " ")
)

 

and even set visible of the solo number box to 

Switch(winningNumbers,
       Value(TextInput3.Text), false, true)

 

adding in those last two will make it display one at a time and then move into the group as you continue until the end, at which point all numbers will show in the group box

 

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TheRobRush
Super User
Super User

watched your vide, looks lovely. Reason it just goes straight to the box below is the last part we added.

Switch(winningNumbers,
       Value(TextInput3.Text), false, true)

change visible of the single text box from that, to true, and it will stay there 😉

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View solution in original post

15 REPLIES 15
TheRobRush
Super User
Super User

Where I have 3 text inputs, set to numbers, named TextInput 1 2 3, in my buttons onselect I place

 

ClearCollect(numbersDraw, 
             ForAll(Sequence(Sum(TextInput2.Text+1-TextInput1.Text),TextInput1,1) As numberTurn, {Value:numberTurn.Value, Random:Rand()}))

 

 

In my label I place

 

Concat(FirstN(Sort(numbersDraw,Random,SortOrder.Ascending), TextInput3.Text), Value, " ")

 

 

TheRobRush_0-1678392061089.png

 

_____________________________________________________________________________________
Like my answer? - Hit that Thumbs Up. Resolved the Issue? - Hit Accept as Solution.
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@TheRobRush 

My formula works on the random button, but I want to add a new next button.

I want to press the random button once and the first random number should appear in a Label on the screen. Then I should be able to press the next button and the next number will appear in Label, and previous numbers will be shown in the gallery. 

The ultimate would be that now that the last number has been drawn, a text will appear saying "No more moves"

@ENRM 

 

If I understood correctly, you want to 

 

1) Press Random once > then Next once (?) > then a text saying "No more moves"

2) Display the current value in a label, and the previous in a gallery

 

You can use a variable to capture the button presses.  Add something like this to the "OnSelect" for your Random and Next buttons:

UpdateContext({varButtonPush: varButtonPush + 1})

 

You can then reference this for your buttons in the DisplayMode property.  For example, for the "Random" button you can add:

If(varButtonPush > 0, DisplayMode.Disabled)

 

So you can disable your buttons as the user advances. For the "No More Moves", you can set the visible property to 

If(varButtonPush = 2,true,false)

 

For the Gallery portion, you can capture the previous value into a collection, and then use that for your Gallery.   So if the current value is in your label, before you replace that with a new value, add this to the beginning of your formula:

Collect(colPriorRandom,YourTextLabel.Text)

Rusk_0-1678395148719.png

 

You'll want to clear the collection at some point, but these are just a few ideas that may work for your use case

 

TheRobRush
Super User
Super User

So, I would still make your random button different, as yours is far more complex than necessary and will make future edits harder if someone that isn't you has to work with this code one day.

 

To test, make a button with the onselect of

If(IsBlank(winningNumbers),
ClearCollect(numbersDraw, 
ForAll(Sequence(Sum(TextInput2.Text+1-TextInput1.Text),TextInput1,1) As numberTurn, {Value:numberTurn.Value, Random:Rand()})));

Set(winningNumbers, If(IsBlank(winningNumbers),1, winningNumbers+1))

 

and set its displaymode to

If(Not(winningNumbers=Value(TextInput3.Text)), DisplayMode.Edit, DisplayMode.Disabled)

 

and it's text to

If(Not(winningNumbers=Value(TextInput3.Text)), "Draw Number", "Draw Complete")

 

then put a label in the screen with this text

Concat(FirstN(Sort(numbersDraw,Random,SortOrder.Ascending), winningNumbers), Value, " ")

 

this will draw one number at a time until the requested limit is reached, then chaneg your button from draw number to draw complete and make it unable to be pressed further. Can then reset it by placing this somewhere, if needed

Set(winningNumbers,Blank())

 

_____________________________________________________________________________________
Like my answer? - Hit that Thumbs Up. Resolved the Issue? - Hit Accept as Solution.
This helps others find solutions to future issues!

@TheRobRush 

Entered what you wrote and got this? Unable to press.

 

ENRM_0-1678398094654.png

 

TheRobRush
Super User
Super User

Check your display mode of the button and make.sure you changed the textbox3 reference to name of your own textbox where your draw count is located. And if it is correct then place a label somewhere and see what value is currently in winningNumbers (also check that all my formula textbox references where swapped when you put them.in your app so you dont end up with a reference throwing it off 🙂 )

_____________________________________________________________________________________
Like my answer? - Hit that Thumbs Up. Resolved the Issue? - Hit Accept as Solution.
This helps others find solutions to future issues!

@TheRobRush 

Typo on the text box. Thanks. This works well.
What if I want to show only one feature in a new text box, and that all are collected in the one I have now.

TheRobRush
Super User
Super User

Do you mean you want a seperate text box for each number revealed by the draw?

_____________________________________________________________________________________
Like my answer? - Hit that Thumbs Up. Resolved the Issue? - Hit Accept as Solution.
This helps others find solutions to future issues!

@TheRobRush 

No, not separately. A textbox. The first number appears in and the next number appears in the same text box and the first goes into the text box that is there now. If this makes sense

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