I have a question that has a simple answer but I cannot figure it out.

I have a datawindow with a datetime column. I need to do a search on that:

datetime ldt_date
string ls_date
ldt_date = Datetime(ls_date)
ls_tmp = "estimate_date =" + String(ldt_date)

ll_row = dw_temp.Find(ls_tmp, 1, dw_temp.Rowcount())

I get a -5 return. I made sure that ldt_date has the correct format.

Any help would be greatly appreciated.