private ElementId GetAssociateLevelOfViewPlan(ViewPlan view)
{
Schema ViewPlanSchema = Schema.Lookup(Guids.VIEW_PLAN_SHEMA_GUID);
Entity ViewPlanSchemaEnt = view.GetEntity(ViewPlanSchema);
ElementId levelId = ViewPlanSchemaEnt.Get <ElementId>(ViewPlanSchema.GetField("Level"));
return(levelId);
}