Clear syntax in a property

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Posted on by Charlie

104

Hello everyone,

Do you know a way to have a clearer syntax in the property. For example, below the code I would like write in a text proporty for a Label.

var myVar2 = Label2.Text
var myVar3 = Label3.Text
var myVar = ""
If (condition1, myVar = myVar2, myVar = myVar3)
return myVar

Okay... this example is really simple. But in my case, I can use a lot other widgets. So, to have not a very veyr very long IF, I would like define local variables in the property.

What do you think about this ?

Thank in advance and Have a nice weekend.

Charlie.

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Nogueira1306 7,390 Super User 2024 Season 1 on at

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You can use UpdateContext and Set for vars

https://docs.microsoft.com/en-US/powerapps/maker/canvas-apps/functions/function-set

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

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CarlosFigueira Microsoft Employee on at

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You can use the With function to define "variables" within properties. For example, in your scenario, you could set the Text property of your label to something along the lines of

With( { myVar2: Label2.Text, myVar3: Label3.Text }, With( { myVar: If(condition1, myVar2, myVar3) }, myVar))

Notice that they are not really 'variables' as their values won't change, they are more like aliases to other expressions.

Hope this helps!

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Charlie 104 on at

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Hi,

Set() and UpdateContext are not availoable only in the "property" like onSelect, onChange, ... ?

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Nogueira1306 7,390 Super User 2024 Season 1 on at

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You can also use it on App OnStart or in a screen OnVisible

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CarlosFigueira Microsoft Employee on at

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That's correct, functions that have side effects (Set, UpdateContext, Patch, Collect, ...) are only available in behavior properties. Data properties, such as the Text property of a label, can only access functions that don't have side effects

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Charlie 104 on at

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Hi,
Yes, perfect. It's good for me :).

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Charlie 104 on at

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Okay so, I will also try this ;).

Thank you so much.

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