private void UpdateDatabase()
        {
            DB.Open();
            DB.BeginTransaction();
            try
            {
                int companyId = Int32.Parse(hdfCompanyId.Value);
                int loginId = Convert.ToInt32(Session["loginID"]);

                if (cbxEndConfirm.Checked)
                {
                    ProjectCombinedCostingSheetAddBasicInformation projectCostingSheetAddBasicInformation = new ProjectCombinedCostingSheetAddBasicInformation(projectCostingSheetAddTDS);
                    int costingSheetId = projectCostingSheetAddBasicInformation.Save(companyId);
                    hdfCostingSheetId.Value = costingSheetId.ToString();

                    // Save costs information
                    ProjectCombinedCostingSheetAddLabourHoursInformation projectCostingSheetAddLabourHoursInformation = new ProjectCombinedCostingSheetAddLabourHoursInformation(projectCostingSheetAddTDS);
                    projectCostingSheetAddLabourHoursInformation.Save(companyId, costingSheetId);

                    ProjectCombinedCostingSheetAddUnitsInformation projectCostingSheetAddUnitsInformation = new ProjectCombinedCostingSheetAddUnitsInformation(projectCostingSheetAddTDS);
                    projectCostingSheetAddUnitsInformation.Save(companyId, costingSheetId);

                    ProjectCombinedCostingSheetAddMaterialsInformation projectCostingSheetAddMaterialsInformation = new ProjectCombinedCostingSheetAddMaterialsInformation(projectCostingSheetAddTDS);
                    projectCostingSheetAddMaterialsInformation.Save(companyId, costingSheetId);

                    ProjectCombinedCostingSheetAddSubcontractorsInformation projectCostingSheetAddSubcontractorsInformation = new ProjectCombinedCostingSheetAddSubcontractorsInformation(projectCostingSheetAddTDS);
                    projectCostingSheetAddSubcontractorsInformation.Save(companyId, costingSheetId);

                    ProjectCombinedCostingSheetAddOtherCostsInformation projectCostingSheetAddOtherCostsInformation = new ProjectCombinedCostingSheetAddOtherCostsInformation(projectCostingSheetAddTDS);
                    projectCostingSheetAddOtherCostsInformation.Save(companyId, costingSheetId);

                    ProjectCombinedCostingSheetAddRevenueInformation projectCostingSheetAddRevenueInformation = new ProjectCombinedCostingSheetAddRevenueInformation(projectCostingSheetAddTDS);
                    projectCostingSheetAddRevenueInformation.Save(companyId, costingSheetId);

                    if (rbtnBeginTemplate.Checked)
                    {
                        ProjectCostingSheetTemplateInformation projectCostingSheetTemplateInformation = new ProjectCostingSheetTemplateInformation(projectCostingSheetAddTDS);
                        projectCostingSheetTemplateInformation.Save(companyId);
                    }
                }
                else
                {
                    if (cbxEndSave.Checked)
                    {
                        ProjectCostingSheetTemplateInformation projectCostingSheetTemplateInformation = new ProjectCostingSheetTemplateInformation(projectCostingSheetAddTDS);
                        projectCostingSheetTemplateInformation.Save(companyId);
                    }
                    else
                    {
                        if (rbtnBeginTemplate.Checked)
                        {
                            ProjectCostingSheetTemplateInformation projectCostingSheetTemplateInformation = new ProjectCostingSheetTemplateInformation(projectCostingSheetAddTDS);
                            projectCostingSheetTemplateInformation.Save(companyId);
                        }
                    }
                }

                DB.CommitTransaction();

                // Store datasets
                projectCostingSheetAddTDS.AcceptChanges();
                Session["projectCostingSheetAddTDS"] = projectCostingSheetAddTDS;

            }
            catch (Exception ex)
            {
                DB.RollbackTransaction();

                string url = string.Format("./../../error_page.aspx?error={0}", ex.Message.Replace('\n', ' '));
                Response.Redirect(url);
            }
        }
        private void PostPageChanges()
        {
            if (cbxEndConfirm.Checked)
            {
                string combinedProjects = "";

                foreach (int projectId in projectsSelected)
                {
                    ProjectGateway projectGateway = new ProjectGateway();
                    projectGateway.LoadByProjectId(projectId);

                    combinedProjects = combinedProjects + ", " + projectGateway.GetName(projectId);
                }
                ProjectCombinedCostingSheetAddBasicInformation model = new ProjectCombinedCostingSheetAddBasicInformation(projectCostingSheetAddTDS);
                model.Insert(Int32.Parse(hdfClientId.Value), tbxName.Text, tkrdpFrom.SelectedDate.Value, tkrdpTo.SelectedDate.Value, decimal.Parse(tbxTeamMembersTotalCostCAD.Text), decimal.Parse(tbxTeamMembersTotalCostUSD.Text), decimal.Parse(tbxMaterialsTotalCostsCAD.Text), decimal.Parse(tbxMaterialsTotalCostsUSD.Text), decimal.Parse(tbxUnitsTotalCostsCAD.Text), decimal.Parse(tbxUnitsTotalCostsUSD.Text), decimal.Parse(tbxOtherCostsTotalCostsCAD.Text), decimal.Parse(tbxOtherCostsTotalCostsUSD.Text), 0, 0, "In Progress", false, Int32.Parse(hdfCompanyId.Value), decimal.Parse(tbxSubcontractorsTotalCostsCAD.Text), decimal.Parse(tbxSubcontractorsTotalCostsUSD.Text), decimal.Parse(tbxRevenueTotal.Text), decimal.Parse(tbxGrandProfit.Text), decimal.Parse(tbxGrandGrossMargin.Text), combinedProjects);

                Session["projectCostingSheetAddTDS"] = projectCostingSheetAddTDS;
            }
        }