headerRowHeight

Optional. Sets the height of rows in the header

headerRowHeight?: number;

Default value: 40

Example

const treegrid = new dhx.TreeGrid("treegrid_container", {
    columns: [
        // columns config
    ],
    headerRowHeight: 50
});

Related sample: TreeGrid. Rows height

The height of the header is calculated as a sum of all row heights in it.