I have an ICollection that I know will only ever have one member. Currently, I loop through it, knowing the loop will only ever run once, to grab the value. Is there a cleaner way to do this?

I could alter the persistentState object to return single values, but that would complicate the rest of the interface. It's grabbing data from XML, and for the most part ICollections are appropriate.

        // worldMapLinks ensured to be a singleton
        ICollection<IDictionary<string, string>> worldMapLinks = persistentState.GetAllOfType("worldMapLink");

        string levelName = ""; //worldMapLinks.GetEnumerator().Current['filePath'];

        // this loop will only run once
        foreach (IDictionary<string, string> dict in worldMapLinks) // hacky hack hack hack
        {
            levelName = dict["filePath"];
        }

        // proceed with levelName
        loadLevel(levelName);

Here is another example of the same issue:

        // meta will be a singleton
        ICollection<IDictionary<string, string>> meta = persistentState.GetAllOfType("meta");
        foreach (IDictionary<string, string> dict in meta) // this loop should only run once. HACKS.
        {
            currentLevelName = dict["name"];
            currentLevelCaption = dict["teaserCaption"];
        }

Yet another example:

    private Vector2 startPositionOfKV(ICollection<IDictionary<string, string>> dicts)
    {
        Vector2 result = new Vector2();
        foreach (IDictionary<string, string> dict in dicts) // this loop will only ever run once
        {
            result.X = Single.Parse(dict["x"]);
            result.Y = Single.Parse(dict["y"]);
        }

        return result;
    }