How to show grid view empty when i make new request?
                            
                         
                        
                     
                 
                
                    Hai Friends,
   
     I ve the asp.net page like below
<asp:pannel=1>
travel_purpose = textbox
total_amount = textbox
these information ll store on my table in "travel_request"
table structure:
================
create table travel_request
(
 request_id int identity,
 user_id varchar(100),
 travel_purpose varchar(100),
 toatal_amount varchar(20)
)
i made here when the person is entered to fill above text box request_id ll be generated.
<asp:pannel=2>
departure date =textbox
from_place = textbox
to_place = textbox
travel_mode = textbox
request_id "visible=false" = text box
ADD(button) (after pressing these button  above details ll show on grid view).
these deatils ll stored on
create table onward_journey
(
 journey_id int identity,
 request_id int references travel_request(request_id),
 departuredate datetime,
 from_palce varchar(20),
 To_place varchar(20),
 travel_mode varchar(20)
)
so i made the query for displaying gridviews:
==============================================
select * from onward_journey where request_id = IDENT_CURRENT('Travel_request')
now the problem is when i try to made new request that time also gridview contains last request_id  value.
above query is the problem......
 i need  the solution when i make new request grid ll show "empty" (i.e doesnt show previous value of request).