linq join on multiple columns 2- you can use the OrganizationContext with Linq to Sql . linq join on multiple columns Join - LINQ Joining Operator - TutorialsTeacher Language Integrated Query (LINQ) contains many complex operators, which combine multiple data sources or does complex processing. SELECT multiple columns from DataTable using LINQ change you group by clause to: group new { target, transaction } by new { target.ProductGroupID, target.StateID, target.Year } into grouped. Linq with multiple table joins, ordering and grouping. LINQ Join with Multiple Conditions in On Clause - Stack Overflow The joining operators joins the two sequences (collections) and produce a result. An implicit join specifies the collections to be joined in a From clause and identifies the matching key fields in a Where clause. [ProductId] = ( [t1]. Join two tables using LINQ to Entities, then group and total the columns from each tables. So we are using list collection to create three data sources with student details, … LINQ Group By multiple columns and Joins