Why Edit And View item from ribbon is disabled in custom list view webpart ?

Hello,

Scenario:

I have created the custom visual webpart which loads custom list view webpart programmatically that binds list item using spdatasource.In other visual webpart I have added textbox that passes value via query string to xslt webpart and bind data based on the values.

Issue :

When I filter data from xslt listview webpart I am able to see view and edit item for the same record however If I filter via query string xslt webpart is resulting the same record which is correct but on selection of same record "Edit and View Item" from ribbon is disabled !!!

For Exmple :

In both events user is same and permission also same

following link results correct record in xslt webpart, but view item and edit item section is disabled

?FilterSearchVal=Alison+Bell

following link results same record as expected in xslt list view webpart and edit item and view item is also enabled

?FilterSearchVal=Alison+Bell&View={22D677F2-B334-488B-9981-817BAEBDA11A}&FilterField1=NameAndId&FilterValue1=8_Alison Bell - 6557&InitialTabId=Ribbon.ListItem&VisibilityContext=WSSTabPersistence

can anyone please let me know how can I enable view item and edit item while disaplying result thorugh query string ? however I dont knwo where is the issue exactly !!!

Thanks in Advance !!

Dipti Chhatrapati