WHAT IS DIFFERENCE BETWEEN  GRID VIEW AND DATA GRID?
BOTH DATA GRID AND GRID VIEW DERIVED FROM SAME WEB CONTROL CLASS.
BOTH DATA GRID AND GRID VIEW USED TO DISPLAY THE DATA IN HTML TABLE.
THEY BOTH CONTROL THE INFORMATION IN A ROW OF HTML TABLE IN OUTPUT TABLE.
   BUT GRID VIEW HAS MUCH MORE ADVANTAGES THAN DATA GRID...THEY ARE:
1.RICHER DESIGN -TIME CAPABILITIES
           IN GRID VIEW FOR SORTING ,SEARCHING AND PAGING NO NEED OF WRITING A PIECE OF CODE BUT IN CASE OF DATA GRID NEED TO WRITE A CODE.
2.IMPROVED DATA SOURCE BINDING CAPABILITIES
3.AUTOMATIC HANDLING OF SORTING ,DELETES AND PAGING
4.ADDITIONAL COLUMN TYPES AND DESIGN TIME OPERATIONS
5.A CUSTOMIZED PAGER USER  INTERFACE.