conditional LINQ match from multiple items

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hi,
i am new for linq and don't know much and need your help. i have following scenario:

employee table contains
EmpId as primary key
deptId as foreign key
Name
address

i have an anonymous object var deptlist in which i contain list of deptId. Now i want to select all employee from employee table that has any of the deptId as i have in my object deptlist.

Posted 29-May-10 0:59am

darora85

Updated 29-May-10 2:16am

Moak

v2

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Henry Minute · Answer 1 · 2010-05-29T03:54:00

This is a fairly simple example that does what say that you need

C#

// Create a 'dummy' deptList as I don't know what yours contains
int[] ids = {1, 4, 5, 9};
var deptList = ids.Select(n => n);
var result = from e in Employees
where (deptList.Contains(e.deptid)
// I am only selecting Lastname, obviously you should select whichever fields you want.
select (e.LastName);

I have tested this against the Northwind database sample using e.EmployeeID instead of e.DeptID but that should make no difference to the outcome.