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Changing colour of a rectangle

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Posted on by Ticmic

Please be gentle with me I am old and slow.

I have a number of rectangles overlaying an image of a body which are being used in indicate where an injury has taken place on the body.

I want the user to select the rectangle they want and for that rectangle to change colour and remained changed until the form has been submitted.

I have tried following on tutorial and even asked Bing AI but I keep getting an error, here is my workflow:

Circle1 selected

Onselect Set (Mycolor, True)

Fill If (Mycolor, Red,Blue)

as soon as I put the formula in FILL I get this error:

The function "If" has some invalid arguemnts

Location

Circle1

Fill

Can some kind soul show me where I am going wrong, because at this rate I might give up and spend an evening with my wife (so pleeeeese help)

Categories:

Building Power Apps

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TheRobRush 11,128 Moderator on at

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To demonstrate how this works, plac ea single rectangle on your screen. Set it's onselect to

UpdateContext({amISelected:Self})

and its fill to

If(amISelected=Self,Color.DarkRed, Color.Blue)

now copy and paste it ad nauseum and click around
Ticmic 22 on at

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Thank you but how can I revert it back to the original colour if I have made a mistake
TheRobRush 11,128 Moderator on at

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Change OnSelect to

Switch( amISelected, Self, UpdateContext({amISelected:Blank()}), UpdateContext({amISelected:Self}))
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TheRobRush 11,128 Moderator on at

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and HERE is if you want to be able to select more than one at a time.

OnSelect

Switch( Self in selectionArray, true, RemoveIf(selectionArray, button=Self), Collect(selectionArray, {button:Self}))

If(Self in selectionArray,Color.DarkRed, Color.Blue)
Ticmic 22 on at

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Thank you so much for your assistance
TheRobRush 11,128 Moderator on at

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Anytime, don't forget to mark the post/posts that resolved your issue as Solutions so that people searching for your same issue in future will more easily find their answers
Ticmic 22 on at

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Ok, one issue I now have is if I have multiple rectangles when I select one it turns the others off, how can I make it so I can choose multiple rectangles
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TheRobRush 11,128 Moderator on at

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Look through my post above, I already provided a second method for selecting multiple rectangles
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Ticmic 22 on at

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Sorry, I got so Giddy with the solution I missed it thanks again