Problem with updating a sharepoint list (operator/operand error)

[ABK]

Hello guys. 

So i've made an app for social events at our company. 

Currently, after you sign up for the event - you have to delete your signup if you have changes. 

Currently i wish to change this, but i am having trouble with the code for updateif

The working code for signing up is: 

Set(
    MDS;
    Main_ID
);;
Patch(
    Deltagerliste;
    Defaults(Deltagerliste);
    {
        SignupID: Text(
            Value(
                First(
                    Sort(
                        Filter(
                            Deltagerliste;
                            MDS = MainIDSignup
                        );
                        Value(SignupID);
                        Descending
                    )
                ).SignupID
            ) + 1
        );
        UniqueBooking: Text(
            Value(
                First(
                    Sort(
                        Deltagerliste;
                        Value(UniqueBooking);
                        Descending
                    )
                ).UniqueBooking
            ) + 1
        );
        Titel: Label1_3.Text;
        MainIDSignup: Label24.Text;
        Brugernavn: User().FullName;
        Deltager: "1";
        PlusOne: If(
            Checkbox1.Visible;
            (If(
                Checkbox1.Value = true;
                Text("1");
                Text("0")
            ));
            Text("0")
        );
        PlusKids: If(
            Dropdown1.Visible;
            Dropdown1.SelectedText.Value;
            Text("0")
        )
    }
);;
Navigate(
    Forside;
    None
);;

What i am trying to do is update PlusKids and PlusOne with the following code

UpdateIf(
    Deltagerliste;
    MainIDSignup = Main_ID;
    {
        PlusOne: If(
            Checkbox1.Visible;
            (If(
                Checkbox1.Value = true;
                Text("1");
                Text("0")
            ));
            Text("0")
        );
        PlusKids: If(
            Dropdown1.Visible;
            Dropdown1.SelectedText.Value;
            Text("0")
        )
    }
);;
Navigate(
    Forside;
    None
);;

I am getting some weird error that i am having trouble translating to English. But it seems to be something like

Expected operator error with a text along the lines of

"Operator expected. We are expecting an operator, ex "+", "*" or "&" this place in the formula"

The error is in my update code.

Any useful hints?

[RandyHayes · Accepted solution]

@ABK 

Specifically for the Formula you are trying to change, consider the following formula instead:

UpdateIf(
    Deltagerliste;
    MainIDSignup = Main_ID;
    {
        PlusOne: If(Checkbox1.Visible && Checkbox1.Value; "1"; "0");
        PlusKids: If(Dropdown1.Visible, Dropdown1.Selected.Value; "0")
    }
);;

Navigate(
    Forside;
    None
);;

I am also guessing that perhaps your PlusKids might be a numeric column, in which case, change to the following:

UpdateIf(
    Deltagerliste;
    MainIDSignup = Main_ID;
    {
        PlusOne: If(Checkbox1.Visible && Checkbox1.Value; "1"; "0");
        PlusKids: Value(If(Dropdown1.Visible, Dropdown1.Selected.Value; "0"))
    }
);;

Navigate(
    Forside;
    None
);;

I hope this is helpful for you.

[ABK]

@RandyHayes 

I kinda feel dumb.. 

I had spent so much time starring at codes that I just couldn't see that I was trying to use this under "Text" and not "OnSelect".

Therefore it obviously didn't work 🙂 

Thank you for your help anyway - accepted your answer as the code you provided works. 

[RandyHayes]

@ABK 

It happens!

You know that's a sign you need to take a little break! 🙂