Question

I know the title is not great but I think the code will come across a lot better.

Say I have the following class:

public class Test
{
    public List<Object> ObjectList = new List<Object>;
}

Now let’s say I have a list<Test> listOfTest that has 100 items in its list, and each Test object in the list has 100 items in its List<Object> ObjectList list.

Can I use LINQ, Lambda expression or anything to quickly get all the Objects’s from every Test object?

Currently I have to do the following:

var items = new List<Object>();
foreach(var testobj in listOfTest)
{
    items.AddRange(testObj.ObjectList);
}

I do know I could do listOfTest.foreach() but it really comes down to still needing the foreach.

I personally do NOT like this and think it is a hack almost and there must be a better way to do this. So the question is basically, is there a better way to do this?

Answer 1

How about:

var items = listOfTest.SelectMany(lt => lt.myInnerObject).ToList();