Hi @Berihun1 ,
I assume you are referring to the red labels under the text controls. You need Variable here - firstly initiate it at screen OnVisible
UpdateContext({varError: false})
Now on your Save button OnSelect put this
If(
Value(YourAgeBoxName.Text) > 0 && Value(YourFamilySizeBoxName.Text) > 0,
UpdateContext({varError: false});
SubmitForm(YourFormName),
UpdateContext({varError: true})
)
The last bit is the Visible on your error labels
varError && !(Value(Self.Text) > 0)
I am assuming here that a number must be entered. Also (if you have not already) set the format to Number
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