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Return the Set Intersection of Two Sequences

  • Članak

Use the Intersect operator to return the set intersection of two sequences.

Example

This example uses Intersect to return a sequence of all countries/regions in which both Customers and Employees live.

var infoQuery =
    (from cust in db.Customers
    select cust.Country)
    .Intersect
        (from emp in db.Employees
        select emp.Country)
;

Dim infoQuery = _
    (From cust In db.Customers _
     Select cust.Country) _
    .Intersect _
        (From emp In db.Employees _
         Select emp.Country)

In LINQ to SQL, the Intersect operation is well defined only on sets. The semantics for multisets is undefined.

See also