DataView RowFilter not working

I am working on a simple database c# program. Using MS Access as end database. I have a form with datagridview, using Dataview as Datasource.

 

When I try to use DataView.Row filter, All operators (<, >, <=, >=) are working except = (equal) not working. My column datatype is DateTime. That part of the code is shown below.

 

Advance thanks, Please help.