Modern ASP.NET forms layout techniques

We have several internal LOB applications developed in ASP.NET web forms. We have/had always used Html tables to layout data entry forms in these applications. They have worked fine as they are internal applications and for the most part we control what browsers our users use to access them. I was wondering what's the latest way to design asp.net data entry forms? we looked at bootstrap but either we will have to use 'their' grids or html tables ( if I am not mistaken). Just wondering if we are missing out on something.

Thanks