How to make label visible true click on create button

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Posted on by Community Power Pla... Microsoft Employee

Hi,

I want to make Error label visible true if Textinput is blank. I have written the code below.

If(Isblank(txtinput.text),Errormessage1.visible=true,Errormessage1.visible=false);

I don't want to create context variables becasue there are many fields in my form. So, I have to create for each field one variabele. when I click on create button and I need to validate the form.

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Community Power Pla... Microsoft Employee on at

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Hello nagamanikanta,

you have to change the Visible property of your label like

If(IsBlank(TextInput1),true,false)

Let me know if that works. 🙂

Best regards
Vasii
iAm_ManCat 18,256 Most Valuable Professional on at

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Hi,

You should be able to just change the Visible property of the error message label itself:
Change the Visible property of your error message label to:

If(
IsBlank(txtinput.text),
true,
false
)

Cheers,
@iAm_ManCat
Community Power Pla... Microsoft Employee on at

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But I need to make label visible when i click on Create button. It needs to check whether text input is blank or not.
Community Power Pla... Microsoft Employee on at

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Than you have to use UpdateContext({showLabel:true}) on the OnSelect property of your button and in the label visibility you should write showLabel.

Best regards
Vasii
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If you would make required inputs or something, it would be easier to set the DisplayMode property of the button to disabled if the inputfield is blank like

If(IsBlank(TextInput1),disabled,edit)

Best regards
Vasii
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Below code will work onselect property of create button?
If(Isblank(txtinput.text),Errormessage1.visible=true,Errormessage1.visible=false);
Community Power Pla... Microsoft Employee on at

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Try to use this code in the OnSelect property of your create button
If(IsBlank(TextInput1),UpdateContext({showLabel: true}),UpdateContext({showLabel: false}))
and insert "showLabel" in the Visible property of your errorlabel.

Best regards
Vasii
Community Power Pla... Microsoft Employee on at

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My requirement is not to create context variables(updatecontext()) to make label visible by using this code If(Isblank(txtinput.text),Errormessage1.visible=true,Errormessage1.visible=false); I have to make label visible
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iAm_ManCat 18,256 Most Valuable Professional on at

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You can't do that in PowerApps - you can't set another item's property directly.
You must either use a context variable or a global variable, then set the visible property of that item to the context/global variable.

The way the language and platform is designed is similar to Microsoft Excel, whereby you can't use a standard formula in one cell to directly change another cell's content.

This snippet from https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/working-with-variables
shows how variables are used as you can't directly edit properties like you can with other languages: