Problems with DataView

Hi,

I'm trying to get some data from a DataView, based on a date, with a
RowFilter, like this:

dvInfo.RowFilter = "MyDate >= '" & Format(userDate, "dd/MM/yyyy") & " 12:01
a.m.' AND Fecha <= '" & Format(userDate, "dd/MM/yyyy") & " 11:59 p.m.'"

dvInfo.RowStateFilter = DataViewRowState.CurrentRows

It doesn't work.

Any help?

Thanks,