Question

I need add new style for some DataGrid rows, depending on variable.

For example:

table.setRowStyles(new RowStyles<Entry>() {
    @Override
    public String getStyleNames(Entry entry, int rowIndex) {
        return entry.isStyle() ? "newStyle" : null;
    }
});

“newStyle” is global css style.

The problem is style not applied to rows until i add !important to css definition.
But with !important i lost all default DataGrid styles and have only “newStyle”.

UPDATE: css file

.newStyle {
    color : lightgray;
}

Answer 1

See this previous question for the working solution. Copied for convenience:

In short extend the DataGrid.Style (the goal is only to have a new
type, you don’t have to add anything to it) and have your
dataGridStyle overridden method return your own subtype rather than
DataGrid.Style (and it’ll work because of return-type covariance)