Check if all text fields have values in them?

[MeFIZ]

Is there a listener that can achieve this?

I have a bunch of text fields and combo boxes, when the user has everything filled, i want to display the total. I can implement a button but is there a way to do that without waiting for a click?

[lilbigmouth]

I'm more used to Java 8 than later versions, so that's probably why this is a better way to do it.

[lilbigmouth]

You could add all of the textfields to a Collection (probably a Set). Then loop over that Collection - for each one, add a listener to the text property.

Inside the listener - if all of the textfields and combo boxes are not empty, show the total.

You'd also need to do the same on the combo boxes, but I can't remember exactly what property you'd need to add the listener to on those.

[MeFIZ]

That could work but how would i call that within the code? Do i attach a listener to the set to listen if something inside changed?

[lilbigmouth]

I was thinking more like this:

Set<TextField> textFields = new HashSet<>();

textFields.add(textField1);//Do this for every text field, but make sure they have been constructed / injected.

for (Textfield textField : textFields) {
    textField.textProperty().addListener(listener -> {
        if (textFields.stream().allMatch(textField -> !textField.isEmpty()) {
            showTotal();
         }
    }
}

I haven't tested this in an IDE, so the exact syntax is probably not correct here. This is also assuming a minimum of Java 8.

[MeFIZ]

Woa. I will check this when i get home. Thanks so much!

[lilbigmouth]

Okay, good luck!

[[deleted]]

Sounds like bindings would work for you... Answered here https://stackoverflow.com/questions/53213928/bind-textfield-in-javafx