// ////////////////////////////////////////////////////////////////////////
        //  METHODS
        //
        public ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable GetLaterals()
        {
            projectSectionsNavigatorLaterals = (ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable)Session["projectSectionsNavigatorLateralsNewDummy"];
            if (projectSectionsNavigatorLaterals == null)
            {
                projectSectionsNavigatorLaterals = ((ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable)Session["projectSectionsNavigatorLaterals"]);
            }

            return projectSectionsNavigatorLaterals;
        }
        protected void AddLateralsNewEmptyFix(GridView grdLateralsNavigator)
        {
            if (grdLateralsNavigator.Rows.Count == 0)
            {
                ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable dt = new ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable();
                dt.AddProjectSectionNavigatorLateralsRow(-1, "", "", "", false, -1);
                Session["projectSectionsNavigatorLateralsNewDummy"] = dt;

                grdLateralsNavigator.DataBind();
            }

            // normally executes at all postbacks
            if (grdLateralsNavigator.Rows.Count == 1)
            {
                ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable dt = (ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable)Session["projectSectionsNavigatorLateralsNewDummy"];
                if (dt != null)
                {
                    grdLateralsNavigator.Rows[0].Visible = false;
                    grdLateralsNavigator.Rows[0].Controls.Clear();
                }
            }
        }
        // ////////////////////////////////////////////////////////////////////////
        // EVENTS
        //
        protected void Page_Load(object sender, EventArgs e)
        {
            // Register client scripts
            this.RegisterClientScripts();

            if (!IsPostBack)
            {
                // Security check
                if (!Convert.ToBoolean(Session["sgLFS_PROJECTS_VIEW"]))
                {
                    Response.Redirect("./../../error_page.aspx?error=" + "You are not authorized to view this page. Contact your system administrator.");
                }

                // Validate query string
                if (Request.QueryString["source_page"] == null)
                {
                    Response.Redirect("./../../error_page.aspx?error=" + "Invalid query string in projects2.aspx");
                }

                // Tag page
                hdfCompanyId.Value = Session["companyID"].ToString();
                hdfProjectId.Value = Request.QueryString["project_id"];
                hdfAssetID.Value = Request.QueryString["asset_id"];
                Session.Remove("projectSectionsNavigatorLateralsNewDummy");
                Session.Remove("projectSectionsNavigatorLaterals");

                // Initialize data
                projectTDS = (ProjectTDS)Session["lfsProjectTDS"];
                assetsTDS = new AssetsTDS();
                lfsAssetsTDS = new LfsAssetsTDS();
                workTDS = new WorkTDS();
                projectSectionsNavigatorTDS = new ProjectSectionsNavigatorTDS();

                // Load data
                int companyId = Int32.Parse(hdfCompanyId.Value);
                int assetId = Int32.Parse(hdfAssetID.Value);
                int projectId = Int32.Parse(hdfProjectId.Value);

                AssetSewerSectionGateway assetSewerSectionGateway = new AssetSewerSectionGateway();
                assetSewerSectionGateway.LoadByAssetId(assetId, companyId);

                if (assetSewerSectionGateway.Table.Rows.Count > 0)
                {
                    tbxSectionId.Text = assetSewerSectionGateway.GetFlowOrderID(assetId);
                    tbxStreet.Text = assetSewerSectionGateway.GetStreet(assetId);

                    // ... For usmh
                    if (assetSewerSectionGateway.GetUSMH(assetId).HasValue)
                    {
                        AssetSewerMHGateway assetSewerFindMHGateway = new AssetSewerMHGateway();
                        int USMH = (int)assetSewerSectionGateway.GetUSMH(assetId);

                        assetSewerFindMHGateway.LoadByAssetId(USMH, companyId);
                        tbxUSMH.Text = assetSewerFindMHGateway.GetMHID(USMH);
                    }

                    // ... For usmh
                    if (assetSewerSectionGateway.GetDSMH(assetId).HasValue)
                    {
                        AssetSewerMHGateway assetSewerFindMHGateway = new AssetSewerMHGateway();
                        int DSMH = (int)assetSewerSectionGateway.GetDSMH(assetId);

                        assetSewerFindMHGateway.LoadByAssetId(DSMH, companyId);
                        tbxDSMH.Text = assetSewerFindMHGateway.GetMHID(DSMH);
                    }

                    // ... For Works
                    WorkGateway workGateway = new WorkGateway();
                    if (workGateway.ExistsProjectIdAssetIdWorkTypeCompanyId(assetId, projectId, "Rehab Assessment", companyId))
                        ckbxRehabAssessment.Checked = true;
                    if (workGateway.ExistsProjectIdAssetIdWorkTypeCompanyId(assetId, projectId, "Full Length Lining", companyId))
                        ckbxFullLengthLining.Checked = true;
                    if (workGateway.ExistsProjectIdAssetIdWorkTypeCompanyId(assetId, projectId, "Junction Lining Section", companyId))
                        ckbxJunctionLining.Checked = true;

                    // ... For Laterals
                    if (assetSewerSectionGateway.GetLaterals(int.Parse(hdfAssetID.Value)).HasValue)
                    {
                        tbxTotalLaterals.Text = ((int)assetSewerSectionGateway.GetLaterals(assetId)).ToString();
                    }
                    else
                    {
                        tbxTotalLaterals.Text = "0";
                    }

                    ProjectSectionsNavigatorLateralsGateway projectSectionsNavigatorLateralsGateway = new ProjectSectionsNavigatorLateralsGateway(projectSectionsNavigatorTDS);
                    projectSectionsNavigatorLateralsGateway.LoadBySection_ProjectId(assetId, projectId, companyId);

                    AssetSewerLateralGateway assetSewerLateralGateway = new AssetSewerLateralGateway(assetsTDS);
                    assetSewerLateralGateway.LoadBySectionProjectId(assetId, projectId, companyId);

                    // ... store datasets
                    Session["projectSectionsNavigatorTDS"] = projectSectionsNavigatorTDS;
                    projectSectionsNavigatorLaterals = projectSectionsNavigatorTDS.ProjectSectionNavigatorLaterals;
                    Session["projectSectionsNavigatorLaterals"] = projectSectionsNavigatorLaterals;
                }
            }
            else
            {
                // Restore dataset
                projectTDS = (ProjectTDS)Session["lfsProjectTDS"];
                projectSectionsNavigatorTDS = (ProjectSectionsNavigatorTDS)Session["lfsProjectSectionsNavigatorTDS"];
                projectSectionsNavigatorLaterals = (ProjectSectionsNavigatorTDS.ProjectSectionNavigatorLateralsDataTable)Session["projectSectionsNavigatorLaterals"];
                assetsTDS = (AssetsTDS)Session["assetsTDS"];
                lfsAssetsTDS = (LfsAssetsTDS)Session["lfsAssetsTDS"];
                workTDS = (WorkTDS)Session["workTDS"];
            }
        }