Workset Table Get Active Workset Id Method

public WorksetId GetActiveWorksetId()

public Workset GetActiveWorkset(Document doc)
{
    // Get the workset table from the document
    WorksetTable worksetTable = doc.GetWorksetTable();
    // Get the Id of the active workset
    WorksetId activeId = worksetTable.GetActiveWorksetId();
    // Find the workset with that Id 
    Workset workset = worksetTable.GetWorkset(activeId);
    return workset;
}