rowCss

Optional. Sets style for a row

rowCss?: (row: IRow) => string;

Example

<style>
    .my_custom_row {
        background: coral;
    }
</style>

const treegrid = new dhx.TreeGrid("treegrid_container", {
    columns: [
        // columns config
    ],
    rowCss: function (row) { return row.custom ? "my_custom_row" : "" },
    data: dataset
});

Related sample: TreeGrid. Custom row style

The function takes the id of a row as a parameter and returns a string with the name of a CSS class.