Group By in LINQ TO SQL [Multiple Columns]

 

Today I have to write a  Operation [WCF] which  takes  Input as a String  Metal type and  it will  group the Records by a column XXXX in a Table and sum XX and YY column. 

Here i am going to use North wind  Database  for DEMO . I can not post my Project code.

 

Here I am using Group By and SUM Aggregate Functions to add all Freight Charge.

 

Thanks

SreenivasaRagavan.