CODEWITHSUNDEEP
javajavafxtableview
ismarlowe
ismarlowe

Reputation: 157

TableView in JavaFX: how to change a single cell's background color if a TableCellTextField is being used?

I am creating a TableCellTextField in all rows in the following column:

nameColumn.setCellFactory(TextFieldTableCell.forTableColumn());

My intention is to change the edited cell's background color depending on the user's input.

I have found several solutions for changing a single cell's background color which consist in overriding the updateItem() method inside the cell factory. Here is an example.

However, I do not know how to combine that strategy with making the cell editable through a TextField.

Upvotes: 0

Views: 514

Answers (1)

James_D
James_D

Reputation: 209694

You can basically do the same thing with a TextFieldTableCell that you do with a regular TableCell. Note that, unlike a plain TableCell, a TextFieldTableCell already takes care of setting the text etc.

So you can do, e.g.:

PseudoClass specialClass = PseudoClass.getPseudoClass("special");

nameColumn.setCellFactory(tc -> new TextFieldTableCell<MyType, String>(TextFormatter.IDENTITY_STRING_CONVERTER) {
    @Override
    public void updateItem(String item, boolean empty) {
        super.updateItem(item, empty);
        boolean condition = /* depends on item and empty.... */
        pseudoClassStateChanged(specialClass, condition);
    }
});

Then in your CSS file, just define the styles you need for the cell. E.g.

.table-cell:special {
    -fx-background-color: yellow ;
}

Upvotes: 2

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