Select Items from List<object> by conitaining List<guid> in C#

I am having the ListAllUsers . User having propeorty id(as Guid),na开发者_开发百科me(as String),address(as String). I am having another List ids of users id which are selected from ui. I want to get List selectedUsers, where ids from AllUsers. I am trying to fetch it by LINQ. can i do this by single statement , without multiple itterations? how?

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If I understand your question correctly, you can do something like:

var selectedUsers = allUsers.Where(user => selectedUserIds.Contains(user.Id));

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Another possible approach is:

var selectedUsers = selectedUserIds.Select(id => allUsers.First(user => user.id == id))

This will throw an exception if one of the selectedUserIds doesn't map to a user which might be what you want. The method by Frédéric will silently swallow.