Row header width

You can set row header width with CSS:

<style>
    .active-scroll-left, .active-scroll-corner {width: 50px}
    .active-scroll-top, .active-scroll-data {padding-left: 50px}
</style>

or with js method call (which sets the same CSS rules):

obj.setRowHeaderWidth(50);

See also

setRowHeaderWidth method