protected void grdSubcontractors_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            // Validate general data
            Page.Validate("subcontractorsEdit");
            int projectId = Int32.Parse(hdfProjectId.Value);
            ProjectGateway projectGateway = new ProjectGateway();

            if (Page.IsValid)
            {
                // Validate costs
                projectGateway.LoadByProjectId(projectId);

                if (projectGateway.GetCountryID(projectId) == 1) //Canada
                {
                    Page.Validate("subcontractorsCadEdit");
                }
                else
                {
                    Page.Validate("subcontractorsUsdEdit");
                }
            }

            if (Page.IsValid)
            {
                int costingSheetId = (int)e.Keys["CostingSheetID"];
                int subcontractorId = (int)e.Keys["SubcontractorID"];
                int refId = (int)e.Keys["RefID"];

                int companyId = Int32.Parse(hdfCompanyId.Value);
                string unitOfMeasurement = ((DropDownList)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("ddlUnitOfMeasurementSubcontractorsEdit")).SelectedValue;
                string subcontractor = ((TextBox)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("tbxSubcontractorEdit")).Text;
                double quantity = double.Parse(((TextBox)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("tbxQuantityEdit")).Text.Trim());

                decimal costCad = 0.0M;
                decimal totalCostCad = 0.0M;
                decimal costUsd = 0.0M;
                decimal totalCostUsd = 0.0M;

                if (projectGateway.GetCountryID(projectId) == 1) //Canada
                {
                    costCad = Decimal.Parse(((TextBox)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("tbxCostCADEdit")).Text.Trim());
                    totalCostCad = (costCad * decimal.Parse(quantity.ToString()));
                    totalCostCad = Decimal.Round(totalCostCad, 2);
                }
                else
                {
                    costUsd = Decimal.Parse(((TextBox)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("tbxCostUSDEdit")).Text.Trim());
                    totalCostUsd = (costUsd * decimal.Parse(quantity.ToString()));
                    totalCostUsd = Decimal.Round(totalCostUsd, 2);
                }

                DateTime startDate = ((RadDatePicker)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("tkrdpStartDateEdit")).SelectedDate.Value;
                DateTime endDate = ((RadDatePicker)grdSubcontractors.Rows[e.RowIndex].Cells[0].FindControl("tkrdpEndDateEdit")).SelectedDate.Value;

                // Update data
                ProjectCombinedCostingSheetInformationSubcontractorsInformation model = new ProjectCombinedCostingSheetInformationSubcontractorsInformation(projectCostingSheetInformationTDS);
                model.Update(costingSheetId, subcontractorId, refId, unitOfMeasurement, quantity, costCad, totalCostCad, costUsd, totalCostUsd, false, companyId, subcontractor, startDate, endDate);

                // Store dataset
                subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)model.Table;
                Session["subcontractorsInformation"] = subcontractorsInformation;
                Session["projectCostingSheetInformationTDS"] = projectCostingSheetInformationTDS;

                StepSubcontractorsInformationProcessGrid();
            }
            else
            {
                e.Cancel = true;
            }
        }
        protected void grdSubcontractors_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            // Subcontractors Gridview, if the gridview is edition mode
            if (grdSubcontractors.EditIndex >= 0)
            {
                grdSubcontractors.UpdateRow(grdSubcontractors.EditIndex, true);
            }

            // Delete subcontractor
            int costingSheetId = (int)e.Keys["CostingSheetID"];
            int subcontractorId = (int)e.Keys["SubcontractorID"];
            int refId = (int)e.Keys["RefID"];

            ProjectCombinedCostingSheetInformationSubcontractorsInformation model = new ProjectCombinedCostingSheetInformationSubcontractorsInformation(projectCostingSheetInformationTDS);
            model.Delete(costingSheetId, subcontractorId, refId);

            // Store dataset
            subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)model.Table;
            Session["subcontractorsInformation"] = subcontractorsInformation;
            Session["projectCostingSheetInformationTDS"] = projectCostingSheetInformationTDS;

            StepSubcontractorsInformationProcessGrid();
        }
        protected void grdSubcontractors_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            switch (e.CommandName)
            {
                case "Add":
                    // Subcontractors Gridview, if the gridview is edition mode
                    if (grdSubcontractors.EditIndex >= 0)
                    {
                        grdSubcontractors.UpdateRow(grdSubcontractors.EditIndex, true);
                    }

                    // Validate general data
                    Page.Validate("subcontractorsNew");
                    int projectId = Int32.Parse(hdfProjectId.Value);
                    ProjectGateway projectGateway = new ProjectGateway();

                    if (Page.IsValid)
                    {
                        // Validate costs
                        projectGateway.LoadByProjectId(projectId);

                        if (projectGateway.GetCountryID(projectId) == 1) //Canada
                        {
                            Page.Validate("subcontractorsCadNew");
                        }
                        else
                        {
                            Page.Validate("subcontractorsUsdNew");
                        }
                    }

                    if (Page.IsValid)
                    {
                        int companyId = Int32.Parse(hdfCompanyId.Value);
                        int subcontractorId = Int32.Parse(((DropDownList)grdSubcontractors.FooterRow.FindControl("ddlSubcontractorNew")).SelectedValue);
                        string unitOfMeasurement = ((DropDownList)grdSubcontractors.FooterRow.FindControl("ddlUnitOfMeasurementSubcontractorsNew")).SelectedValue;
                        string subcontractor = ((DropDownList)grdSubcontractors.FooterRow.FindControl("ddlSubcontractorNew")).SelectedItem.Text;
                        double quantity = double.Parse(((TextBox)grdSubcontractors.FooterRow.FindControl("tbxQuantityNew")).Text.Trim());
                        string comment = ""; if (!string.IsNullOrEmpty(((TextBox)grdSubcontractors.FooterRow.FindControl("tbxCommentNew")).Text.Trim())) comment = ((TextBox)grdSubcontractors.FooterRow.FindControl("tbxCommentNew")).Text.Trim();

                        decimal costCad = 0.0M;
                        decimal totalCostCad = 0.0M;
                        decimal costUsd = 0.0M;
                        decimal totalCostUsd = 0.0M;

                        if (projectGateway.GetCountryID(projectId) == 1) //Canada
                        {
                            costCad = Decimal.Parse(((TextBox)grdSubcontractors.FooterRow.FindControl("tbxCostCADNew")).Text.Trim());
                            totalCostCad = (costCad * decimal.Parse(quantity.ToString()));
                            totalCostCad = Decimal.Round(totalCostCad, 2);
                        }
                        else
                        {
                            costUsd = Decimal.Parse(((TextBox)grdSubcontractors.FooterRow.FindControl("tbxCostUSDNew")).Text.Trim());
                            totalCostUsd = (costUsd * decimal.Parse(quantity.ToString()));
                            totalCostUsd = Decimal.Round(totalCostUsd, 2);
                        }

                        DateTime startDate = ((RadDatePicker)grdSubcontractors.FooterRow.FindControl("tkrdpStartDateNew")).SelectedDate.Value;
                        DateTime endDate = ((RadDatePicker)grdSubcontractors.FooterRow.FindControl("tkrdpEndDateNew")).SelectedDate.Value;

                        ProjectCombinedCostingSheetInformationSubcontractorsInformation model = new ProjectCombinedCostingSheetInformationSubcontractorsInformation(projectCostingSheetInformationTDS);
                        model.Insert(0, subcontractorId, unitOfMeasurement, quantity, costCad, totalCostCad, costUsd, totalCostUsd, false, companyId, subcontractor, startDate, endDate, comment);

                        Session.Remove("subcontractorsInformationDummy");
                        subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)model.Table;
                        Session["subcontractorsInformation"] = subcontractorsInformation;
                        Session["projectCostingSheetInformationTDS"] = projectCostingSheetInformationTDS;

                        grdSubcontractors.DataBind();

                        StepSubcontractorsInformationProcessGrid();
                    }
                    break;
            }
        }
        protected void SubcontractorsInformationEmptyFix(GridView grdView)
        {
            if (grdView.Rows.Count == 0)
            {
                int companyId = Int32.Parse(hdfCompanyId.Value);
                ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable dt = new ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable();
                dt.AddCombinedSubcontractorsInformationRow(0, 0, 0, "", 0, 0, 0, 0, 0, false, companyId, false, "", DateTime.Now, DateTime.Now, "", 0, "");
                Session["subcontractorsInformationDummy"] = dt;

                grdView.DataBind();
            }

            // Normally executes at all postbacks
            if (grdView.Rows.Count == 1)
            {
                ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable dt = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)Session["subcontractorsInformationDummy"];
                if (dt != null)
                {
                    // Hide row
                    grdView.Rows[0].Visible = false;
                    grdView.Rows[0].Controls.Clear();
                }
            }
        }
        public ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable GetSubcontractorsInformation()
        {
            subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)Session["subcontractorsInformationDummy"];

            if (subcontractorsInformation == null)
            {
                subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)Session["subcontractorsInformation"];
            }

            return subcontractorsInformation;
        }
        // ////////////////////////////////////////////////////////////////////////
        // INITIAL EVENTS
        //
        protected void Page_Load(object sender, EventArgs e)
        {
            // Register client scripts
            this.RegisterClientScripts();

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

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

                // Tag Page
                hdfCostingSheetId.Value = Request.QueryString["costing_sheet_id"].ToString();
                hdfCompanyId.Value = Session["companyID"].ToString();
                hdfProjectId.Value = Request.QueryString["project_id"];
                hdfDataChanged.Value = Request.QueryString["data_changed"];
                hdfDataChangedMessage.Value = "Changes made to this project will not be saved.";

                ViewState["state"] = Request.QueryString["state"];
                ViewState["active_tab"] = Request.QueryString["active_tab"];
                ViewState["origin"] = Request.QueryString["origin"];
                ViewState["update"] = Request.QueryString["update"];

                projectTDS = (ProjectTDS)Session["lfsProjectTDS"];

                Session.Remove("labourHoursInformationDummy");
                Session.Remove("unitsInformationDummy");
                Session.Remove("subcontractorsInformationDummy");
                Session.Remove("materialsInformationDummy");
                Session.Remove("otherCostsInformationDummy");
                Session.Remove("revenueInformationDummy");

                // If coming from project_combined_costing_sheets_navigator.aspx or project_combined_costing_sheets_add.aspx
                int companyId = Int32.Parse(hdfCompanyId.Value);
                if (Request.QueryString["source_page"] == "project_costing_sheets_navigator.aspx" || Request.QueryString["source_page"] == "project_combined_costing_sheets_add.aspx")
                {
                    // Store Navigator State and Update control
                    StoreNavigatorState();
                    ViewState["update"] = "no";

                    // Get Costing sheet ID
                    int costingSheetId = Int32.Parse(hdfCostingSheetId.Value.Trim());

                    // Get dataset
                    projectTDS = (ProjectTDS)Session["lfsProjectTDS"];
                    projectCostingSheetInformationTDS = new ProjectCostingSheetInformationTDS();
                    labourHoursInformation = new ProjectCostingSheetInformationTDS.CombinedLabourHoursInformationDataTable();
                    unitsInformation = new ProjectCostingSheetInformationTDS.CombinedUnitsInformationDataTable();
                    subcontractorsInformation = new ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable();
                    materialsInformation = new ProjectCostingSheetInformationTDS.CombinedMaterialsInformationDataTable();
                    otherCostsInformation = new ProjectCostingSheetInformationTDS.CombinedOtherCostsInformationDataTable();
                    revenueInformation = new ProjectCostingSheetInformationTDS.CombinedRevenueInformationDataTable();

                    // Get General Data
                    ProjectCombinedCostingSheetInformationBasicInformation projectCostingSheetInformationBasicInformation = new ProjectCombinedCostingSheetInformationBasicInformation(projectCostingSheetInformationTDS);
                    projectCostingSheetInformationBasicInformation.LoadByCostingSheetId(costingSheetId, companyId);

                    ProjectCombinedCostingSheetInformationLabourHoursInformationGateway projectCostingSheetInformationLabourHoursInformationGateway = new ProjectCombinedCostingSheetInformationLabourHoursInformationGateway(projectCostingSheetInformationTDS);
                    projectCostingSheetInformationLabourHoursInformationGateway.LoadByCostingSheetId(costingSheetId, companyId);

                    ProjectCombinedCostingSheetInformationUnitsInformationGateway projectCostingSheetInformationUnitsInformationGateway = new ProjectCombinedCostingSheetInformationUnitsInformationGateway(projectCostingSheetInformationTDS);
                    projectCostingSheetInformationUnitsInformationGateway.LoadByCostingSheetId(costingSheetId, companyId);

                    ProjectCombinedCostingSheetInformationSubcontractorsInformationGateway projectCostingSheetInformationSubcontractorsInformationGateway = new ProjectCombinedCostingSheetInformationSubcontractorsInformationGateway(projectCostingSheetInformationTDS);
                    projectCostingSheetInformationSubcontractorsInformationGateway.LoadByCostingSheetId(costingSheetId, companyId);

                    ProjectCombinedCostingSheetInformationMaterialsInformationGateway projectCostingSheetInformationMaterialsInformationGateway = new ProjectCombinedCostingSheetInformationMaterialsInformationGateway(projectCostingSheetInformationTDS);
                    projectCostingSheetInformationMaterialsInformationGateway.LoadByCostingSheetId(costingSheetId, companyId);

                    ProjectCombinedCostingSheetInformationOtherCostsInformationGateway projectCostingSheetInformationOtherCostsInformationGateway = new ProjectCombinedCostingSheetInformationOtherCostsInformationGateway(projectCostingSheetInformationTDS);
                    projectCostingSheetInformationOtherCostsInformationGateway.LoadByCostingSheetId(costingSheetId, companyId);

                    projectCombinedCostingSheetInformationRevenueInformationGateway projectCombinedCostingSheetInformationRevenueInformationGateway = new projectCombinedCostingSheetInformationRevenueInformationGateway(projectCostingSheetInformationTDS);
                    projectCombinedCostingSheetInformationRevenueInformationGateway.LoadByCostingSheetId(costingSheetId, companyId);

                    Session["lfsProjectTDS"] = projectTDS;
                    Session["projectCostingSheetInformationTDS"] = projectCostingSheetInformationTDS;
                    Session["labourHoursInformation"] = projectCostingSheetInformationTDS.CombinedLabourHoursInformation;
                    Session["unitsInformation"] = projectCostingSheetInformationTDS.CombinedUnitsInformation;
                    Session["subcontractorsInformation"] = projectCostingSheetInformationTDS.CombinedSubcontractorsInformation;
                    Session["materialsInformation"] = projectCostingSheetInformationTDS.CombinedMaterialsInformation;
                    Session["otherCostsInformation"] = projectCostingSheetInformationTDS.CombinedOtherCostsInformation;
                    Session["revenueInformation"] = projectCostingSheetInformationTDS.CombinedRevenueInformation;

                    labourHoursInformation = projectCostingSheetInformationTDS.CombinedLabourHoursInformation;
                    unitsInformation = projectCostingSheetInformationTDS.CombinedUnitsInformation;
                    subcontractorsInformation = projectCostingSheetInformationTDS.CombinedSubcontractorsInformation;
                    materialsInformation = projectCostingSheetInformationTDS.CombinedMaterialsInformation;
                    otherCostsInformation = projectCostingSheetInformationTDS.CombinedOtherCostsInformation;
                    revenueInformation = projectCostingSheetInformationTDS.CombinedRevenueInformation;
                }

                // ... project_combined_costing_sheets_add.aspx
                if (Request.QueryString["source_page"] == "project_combined_costing_sheets_add.aspx")
                {
                    ViewState["update"] = "yes";
                }

                // ... left menu, project_combined_costing_sheets_edit.aspx, project_combined_costing_sheets_delete.aspx or project_combined_costing_sheets_state.aspx
                if ((Request.QueryString["source_page"] == "lm") || (Request.QueryString["source_page"] == "project_combined_costing_sheets_summary.aspx") || (Request.QueryString["source_page"] == "project_combined_costing_sheets_delete.aspx") || (Request.QueryString["source_page"] == "project_combined_costing_sheets_state.aspx"))
                {
                    // Store Navigator State and Update control
                    StoreNavigatorState();
                    ViewState["update"] = Request.QueryString["update"];
                }

                // Restore dataset
                projectTDS = (ProjectTDS)Session["lfsProjectTDS"];
                projectCostingSheetInformationTDS = (ProjectCostingSheetInformationTDS)Session["projectCostingSheetInformationTDS"];

                labourHoursInformation = (ProjectCostingSheetInformationTDS.CombinedLabourHoursInformationDataTable)Session["labourHoursInformation"];
                unitsInformation = (ProjectCostingSheetInformationTDS.CombinedUnitsInformationDataTable)Session["unitsInformation"];
                subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)Session["subcontractorsInformation"];
                materialsInformation = (ProjectCostingSheetInformationTDS.CombinedMaterialsInformationDataTable)Session["materialsInformation"];
                otherCostsInformation = (ProjectCostingSheetInformationTDS.CombinedOtherCostsInformationDataTable)Session["otherCostsInformation"];
                revenueInformation = (ProjectCostingSheetInformationTDS.CombinedRevenueInformationDataTable)Session["revenueInformation"];

                if (!Convert.ToBoolean(Session["sgLFS_PROJECTS_COSTINGSHEETS_ADMIN"]))
                {
                    // Costing Sheet state check
                    ProjectCombinedCostingSheetInformationBasicInformationGateway projectCostingSheetInformationBasicInformationGatewayForValidate = new ProjectCombinedCostingSheetInformationBasicInformationGateway(projectCostingSheetInformationTDS);
                    string state = projectCostingSheetInformationBasicInformationGatewayForValidate.GetState(Int32.Parse(hdfCostingSheetId.Value));
                    if (state == "Approved")
                    {
                        Response.Redirect("./../../error_page.aspx?error=" + "This costing sheet is approved, you can not edit it.");
                    }
                }

                ProjectGateway projectGateway = new ProjectGateway(projectTDS);
                hdfClientId.Value = projectGateway.GetClientID(Int32.Parse(hdfProjectId.Value.ToString())).ToString();

                // ... for project
                int currentProjectId = Int32.Parse(hdfProjectId.Value.ToString());
                string name = projectGateway.GetName(currentProjectId);
                if (name.Length > 23) name = name.Substring(0, 20) + "...";
                lblTitleProjectName.Text = name + " (" + projectGateway.GetProjectNumber(currentProjectId) + ")";

                // ... for client
                int currentClientId = projectGateway.GetClientID(Int32.Parse(hdfProjectId.Value.ToString()));

                CompaniesGateway companiesGateway = new CompaniesGateway();
                companiesGateway.LoadAllByCompaniesId(currentClientId, companyId);
                lblTitleClientName.Text = "Client: " + companiesGateway.GetName(currentClientId);

                LoadBasicData();
            }
            else
            {
                // Restore dataset
                projectTDS = (ProjectTDS)Session["lfsProjectTDS"];
                projectCostingSheetInformationTDS = (ProjectCostingSheetInformationTDS)Session["projectCostingSheetInformationTDS"];

                labourHoursInformation = (ProjectCostingSheetInformationTDS.CombinedLabourHoursInformationDataTable)Session["labourHoursInformation"];
                unitsInformation = (ProjectCostingSheetInformationTDS.CombinedUnitsInformationDataTable)Session["unitsInformation"];
                subcontractorsInformation = (ProjectCostingSheetInformationTDS.CombinedSubcontractorsInformationDataTable)Session["subcontractorsInformation"];
                materialsInformation = (ProjectCostingSheetInformationTDS.CombinedMaterialsInformationDataTable)Session["materialsInformation"];
                otherCostsInformation = (ProjectCostingSheetInformationTDS.CombinedOtherCostsInformationDataTable)Session["otherCostsInformation"];
                revenueInformation = (ProjectCostingSheetInformationTDS.CombinedRevenueInformationDataTable)Session["revenueInformation"];
            }
        }