How to set RepeatColumns property of a Datalist using CSS?

Does anyone know how to set the RepeatCol开发者_StackOverflow中文版umns property of an ASP.Net Datalist using CSS ?

This is fundamentally impossible.

This property controls how DataList's server-side code renders its HTML.
CSS is irrelevant.

DataList.RepeatColumns is a property on a server-side control. CSS alone, being client-side, can't touch it. In order to use CSS to style your rendered HTML, you're going to need to use the actual rendered HTML.