public JobInvoiceReturnLine Create(JobInvoiceReturnLine pt)
 {
     pt.ObjectState = ObjectState.Added;
     db.JobInvoiceReturnLine.Add(pt);
     return(pt);
 }
 public void Delete(JobInvoiceReturnLine pt)
 {
     pt.ObjectState = Model.ObjectState.Deleted;
     db.JobInvoiceReturnLine.Remove(pt);
 }
 public void Update(JobInvoiceReturnLine pt)
 {
     pt.ObjectState = ObjectState.Modified;
     db.JobInvoiceReturnLine.Add(pt);
 }