Data Layer Interface design


hi,

 

i working on n-tier architecture. have p layer, bl, dal, data tier....

 

i working on dal , want expose interface dal bl use...

 

want know should return type.... thinking of idictionary again converting datatable idictionary big headache..

 

i have read somewhere should not use datatable, dataset..rather should use interface.......

 

please guide me..

 

hey,

 

in scenario suggest use business entities.

 

 



Architecture  >  Architecture General



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