First of all ,,. Sorry for Poor My English.

dw_1.Modify("datawindow.detail.color='0~tif(getrow()=currentrow(),12639424,r
gb(255,255,255))' ")

In pb 7.0 It is Good, and Gracefull .. (so i using above script as a
substitue dw_1.SelectRow() )

But in DW.Net ,

Is is not good, and ...not good...

try above script. then you will know this problem.