rowCss
Optional. Sets style for a row
rowCss?: (row: object) => string;
Example
<style>
    .my_custom_row {
        background: coral;
    }
</style>
const grid = new dhx.Grid("grid_container", {
    columns: [
        // columns config
    ],
    rowCss: (row) => { return row.custom ? "my_custom_row" : "" },
    data: dataset
});
Related sample: Grid. Custom row style
The function takes the object of a row as a parameter and returns a string with the name of a CSS class.