internal void SendActionToQueue(bool build, bool check)
        {
            try
            {
                // at least one action must be true
                if (!build && !check)
                {
                    throw new ApplicationException(SharedSupport.GetLocalizedString("StudentAssignment_Must_Choose_Action"));
                }

                // validate userAssignmentId
                if (_userAssignmentID <= 0)
                {
                    throw new ApplicationException(SharedSupport.GetLocalizedString("StudentAssignment_InvalidUserAssignmentId"));
                }

                // generate the xml
                System.IO.MemoryStream   ms        = new System.IO.MemoryStream();
                System.Xml.XmlTextWriter xmlwriter = new System.Xml.XmlTextWriter(ms, System.Text.Encoding.ASCII);
                xmlwriter.Formatting = System.Xml.Formatting.Indented;
                xmlwriter.WriteStartDocument(false);
                xmlwriter.WriteStartElement("serverActions");

                // build requested?
                if (build)
                {
                    // update auto build status - set to pending
                    this._autoCompileStatus = Constants.AUTOCOMPILE_PENDING_STATUS;
                }

                // include serverAction element for auto build
                xmlwriter.WriteStartElement("serverAction");
                xmlwriter.WriteAttributeString("name", "AutoBuild");
                xmlwriter.WriteElementString("userAssignmentID", this.UserAssignmentID.ToString());
                xmlwriter.WriteEndElement();

                // check requested?
                if (check)
                {
                    // update auto check status - set to pending
                    this._autoGradeStatus   = Constants.AUTOGRADE_PENDING_STATUS;
                    this._autoCompileStatus = Constants.AUTOCOMPILE_PENDING_STATUS;

                    // include serverAction element for auto build
                    xmlwriter.WriteStartElement("serverAction");
                    xmlwriter.WriteAttributeString("name", "AutoCheck");
                    xmlwriter.WriteElementString("userAssignmentID", this.UserAssignmentID.ToString());
                    xmlwriter.WriteEndElement();
                }

                xmlwriter.WriteEndElement();
                xmlwriter.Flush();

                //read all of the stream and convert to a string
                string msg = System.Text.Encoding.ASCII.GetString(ms.GetBuffer());

                // close
                xmlwriter.Close();
                ms.Close();

                try
                {
                    SharedSupport.SendMessageToQueue(Constants.ACTION_QUEUE_PATH, Constants.ACTION_QUEUE_NAME, Constants.AM_SUBMIT_ACTION, msg);
                }
                catch (Exception e)
                {
                    SharedSupport.HandleError(e, "ServerAction_InvalidQueue");
                }

                // update the status of the userAssignments
                this.LastUpdatedDate = DateTime.Now;
                this.Update();
            }
            catch (Exception ex)
            {
                SharedSupport.HandleError(ex);
            }
        }