Unable to use ";;" in my OnSelect statement. "Unexpected characters"

[PhilipL]

Hello, I am trying to make 3 formulas occur in a sequence when using a Button in Power APPs. I have the formulas in the "OnSelect":

My code look like this (when I try to use ";;")

If(IsBlank(FieldOnMyPageInAPP),false, Set(Variable, FieldInMyAPP.Text)) 

;;If(IsBlank(FieldInMyAPP),false, Navigate(NextPageInMyAPP)) 

;;If(CountRows(Filter('Table, Key =Variable)) = 1, Set(Variable2, true), Set(Variable2, false))

However I get the error message on the ";;"

: "Unexpected Characters. Characters are used in an unexpected way."

And when I hover on the "IF" statements to the right of the ";;" I get the following message:

"Expected Operator. We expect an operator such as +,*, or & at this point in the formula"

I can use regular ";" without any errors, but the formulas are not executed in the correct sequence. I do not have the option to split these formulas into multiple buttons or pages. They all need to be triggered from this button. 

Can anyone explain why I cannot use the ";;" ? 

[PhilipL]

The variable is used in other pages unfortunately so needs to remain as a Variable:
Below is a picture of the monitor. Above the Black Line are when I use timer to trigger them one at the time (on the correct sequence) the bottom are when I use the Button. It is the same code, but as we can see the "navigate" step does not occur.  

I can do work around such as timers, which work for now, but I am uncertain if they will work in the future when I have more data etc. Which is why I am reaching out. I need to understand the issue here. 

[iAm_ManCat]

You shouldn't have to resort to timers for such simple code - can you confirm the code you are using is this:

If(
   !IsBlank(FieldInMyAPP.Text),
   Set(VariableName, FieldInMyAPP.Text);
   Set(Variable2, (CountRows(Filter('Table, Key = VariableName)) = 1));
   Navigate(NextPageInMyAPP);
);

[PhilipL]

Almost, the Variable2 is a boolean depending on if the CountRows > 1. 

So everything is the same but I have IF(CountRows(Filter('Table',Key = Variable) > 0, Set(Variable2, True), Set(Variable2, False))

[iAm_ManCat]

The code I have there also evaluates to a boolean output

And you had this on a button, not on the OnStart or something like that?

I replicated this and mine worked correctly. Button sets the variables in order, then navigates:

[PhilipL]

Yes that is how my code looks. Now it works the first time, but when  I get back to the page "1" the second time. and use the button for new values. It doesn't work. The "FieldInMyApp" Is populated with a new & correct info, but the button doesn't work.  But maybe that is some other issue ?

So this might be working now and it is just an issue with my gallery which is where the FieldInMyApp is. 

[iAm_ManCat]

The textInput - is that being used as an input or just to display field details from that row?

[PhilipL]

Here are pictures of the button + code + field to evaluate. 

The field in the app is from a gallery and it is populated by ThisItem.TableName. It works the first time and there is values in the field. Then the 2nd time I want to use the button. I will see the correct values/string in the gallery, but the button doesn't work.

The warning is just for the delegation of CountRows. 

[iAm_ManCat]

Could you try referencing ThisItem directly instead? I've seen cases before where an IsBlank check fails on text inputs when inside a gallery, I usually use the Len function instead of IsBlank - its not a blank check but rather a check for how many characters are in the box

If(
   !IsBlank(ThisItem.PLR_PalletLocationID),
   Set(VariableName, ThisItem.PLR_PalletLocationID);
   Set(Variable2, (CountRows(Filter('Table, Key = VariableName)) = 1));
   Navigate(NextPageInMyAPP);
);

[PhilipL]

Tried ThisItem directly now and the same issue persists.

I have the same issue when I use:

It works for the first delete, but the second time it doesn't work.