Question

With class RoleRecord (Guid RoleId, string RoleName,…) I am trying to get a new list of Name where the RoleId matches a list of Guid

IEnumerable<RoleRecord> roles;
IEnumerable<Guid> roleIds;

I was thinking about avoiding the nested for loops, and along the lines of :

            var query = 
            from rowA in roles
            join rowB in roleIds
            on rowA.RoleId equals rowB.????
            select { rowA.RoleName };

I tried to wrap the guid in a class too, but cant even build it because the syntax is wrong.
Any ideas?
Thanks

Answer 1

Give this a try:

var query = 
            from rowA in roles
            where roleIds.Contains(rowA.RoleId)
            select  rowA.RoleName;