Stairs Get Stairs Supports Method

public ICollection<ElementId> GetStairsSupports()

private void GetStairSupports(Stairs stairs)
{
    ICollection<ElementId> supportIds = stairs.GetStairsSupports();
    string info = "Number of supports:  " + supportIds.Count;

    int supportIndex = 0;
    foreach (ElementId supportId in supportIds)
    {
        supportIndex++;
        Element support = stairs.Document.GetElement(supportId);
        if (null != support)
        {
            info += "\nName of support " + supportIndex + ":  " + support.Name;
        }
    }

    TaskDialog.Show("Revit", info);
}