/// <summary>
/// Forms a list of the names of the set, to which the View's Dropbox can bind.
/// </summary>
/// <returns></returns>
private List <string> GetExtraSetNames()
{
var list = new List <string>();
var keys = ExtraSets.Select(x => x.Key);
foreach (var key in keys)
{
list.Add(key);
}
return(list);
}
