How do I do this in C#?

Question

The following Unit Test passes in VB.Net

<Test()> _
Public Sub VB_XMLLiteral_SyntaxRocks_Test()
    Dim XML = <Doc>
                  <Level1>
                      <Item id="1"/>
                      <Item id="2"/>
                  </Level1>
                  <Level1>
                      <Item id="3"/>
                      <Item id="4"/>
                  </Level1>
              </Doc>
    Assert.AreEqual(4, XML.<Level1>.<Item>.Count)
End Sub

How do I assert the same thing in C#?

To clarify, I 'd like to know how to express...

XML.<Level1>.<Item>

...in C#

Answer 1

Assert.AreEqual(4, XML.Elements("Level1").Elements("Item").Count());

And of course XML needs to be an XElement (that's what a VB literal produces too)

Answer 2

Using LINQ to XML:

var XML = new XElement("Doc",
    new XElement("Level1",
        new XElement("Item", 
            new XAttribute("Id", 1)),
        new XElement("Item", 
            new XAttribute("Id", 2))),
    new XElement("Level1",
        new XElement("Item", 
            new XAttribute("Id", 3)),
        new XElement("Item", 
            new XAttribute("Id", 4))));

Assert.AreEqual(4, 
   (from element in XML.Elements("Level1").Elements("Item")
    select element).Count());