Question

I want to convert this query syntax to method syntax, silly but confused

List<int> x = new List<int>();
// code to fill list
from ug in DataContext.UserGroups
where (
    from f in x
    select f    
).Contains(ug.ID)
select ug;

Answer 1

var results = DataContext.UserGroups.Where(ug => x.Contains(ug.ID)).Select(ug => ug.ID);

I think that’s what you want. The code you put in your question wasn’t 100% complete. Were you just trying to get the IDs of UserGroups that were in the int list? If you just want the UserGroups that match, remove the .Select part of my query.

To get the UserGroups that match:

var results = DataContext.UserGroups.Where(ug => x.Contains(ug.ID));