How to set Table/TableRow/TabelCell width by percent in code behind in asp.net?

How do I set width with percent in code behind? The only option I can think of is taking the parent width and calculate by percent.i.e. TableRow.Width = Table.Width.Value * 25/100 (set table row with width equals to 25% of the table width). However, eventually, how do I set the table width in percent? Without the table width, the child controls cannot use its parent widths to calculate.

MS JSON date serialization and daylight saving time

We have an Ajax web service hosted in an ASP.NET application. This service accepts a DateTime parameter which, for the purposes of this question, should receive the DateTime equivalent of /Date(1359727200000-0200)/, which is a MS-JSON literal for Feb 1, 2013 9:00 AM in Brazil time. This literal is what the browser sends within the Ajax request.