Here is your solution
1) Create this procedure in SQL SERVER(I guess you are using sql server database)
CREATE PROCEDURE spGetDateByDate(@vDate AS DATETIME)
AS
BEGIN
Select * from billentry where CONVERT(char(15), CONVERT(varchar, Billdate, 101)) like
CONVERT(char(15), CONVERT(varchar,@vDate, 101))
END
2) Then write Vb.net code to connect SQL server and execute this procedure with DateTimePicker2.Value as parameter
3) Get all rows and display in your form
Hope this helps. if does work then accept and vote the solution