Writing code to find the column associated with the CodeReview request request element

Question

I'm new to C # (from Java) and trying to write a report that counts the number of code reviews completed.

I have no problem repeating code view requests. When viewing code is associated with a set of changes, I use the following code, which works fine:

Changeset changeset = versionControlServer.GetChangeSet(int.Parse(
    workItem.Fields["Associated Context"].Value.ToString()), true, true);

I am trying to make an equivalent using Shelvesets.

I can iterate through all the shelves using the following code:

foreach (Shelveset shelveset in versionControlServer.QueryShelvesets(null,null) {
    Console.WriteLine(shelveset.Name);
}

Unfortunately, when I try to execute the same command based on a previously typed name, I get nothing. The following code returns an empty list.

foreach (Shelveset shelveset in versionControlServer.QueryShelvesets("ShelvesetName",null)) 
{
    Console.WriteLine(shelveset.Name);
}

- , , versionControlServer.QueryShelvesets("ShelvesetName",null) , CodeReviewRequest?