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

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

                // Security check
                EmployeeGateway employeeGateway1 = new EmployeeGateway(new DataSet());
                int employeeId = employeeGateway1.GetEmployeIdByLoginId(Convert.ToInt32(Session["loginID"]));
                hdfCurrentEmployeeId.Value = employeeGateway1.GetEmployeIdByLoginId(Convert.ToInt32(Session["loginID"])).ToString();
                employeeGateway1.LoadByEmployeeId(employeeId);

                if (!employeeGateway1.GetApproveTimesheets(employeeId))
                {
                    Response.Redirect("./../../error_page.aspx?error=" + "You are not authorized to view this page. Contact your system administrator.");
                }

                // Tag page
                Session.Remove("projectTimeApproveDummy");

                // Initialize  variables
                lblError.Visible = false;

                // ... Initialize viewstate variables
                System.Configuration.AppSettingsReader appSettingReader = new System.Configuration.AppSettingsReader();
                ViewState["LHMode"] = appSettingReader.GetValue("LABOUR_HOURS_OPERATION_MODE", typeof(System.String)).ToString();

                // Labour Hours Mode check
                if ((string)ViewState["LHMode"] == "Partial")
                {
                    Response.Redirect("./../../error_page.aspx?error=" + "The system is on partial mode. Contact your system administrator.");
                }

                ViewState["others"] = Request.QueryString["others"];

                PayPeriodGateway payPeriodGateway = new PayPeriodGateway(new DataSet());
                ViewState["period_id"] = payPeriodGateway.GetPayPeriodId(DateTime.Now);

                // Load data
                // ... Loading employees accordingly to the admins country.
                EmployeeList employeeList = new EmployeeList(new DataSet());
                string employeeType = employeeGateway1.GetType(employeeId);
                odsClient.SelectParameters.RemoveAt(2);
                if (employeeType.Contains("CA"))
                {
                    employeeList.LoadByRequestProjectTimeEmployeeTypeEmployeeIdApproveManagerAndAddItem(1, "CA", -1, "(All)", employeeId);

                    odsClient.SelectParameters.Add("countryId", "1");
                }
                else
                {
                    if (employeeType.Contains("US"))
                    {
                        employeeList.LoadByRequestProjectTimeEmployeeTypeEmployeeIdApproveManagerAndAddItem(1, "US", -1, "(All)", employeeId);

                        odsClient.SelectParameters.Add("countryId", "2");
                    }
                    else
                    {
                        employeeList.LoadByRequestProjectTimeEmployeeTypeEmployeeIdApproveManagerAndAddItem(1, "SOTA", -1, "(All)", employeeId);

                        odsClient.SelectParameters.Add("countryId", "-1");
                    }
                }

                odsClient.Select();
                ddlClient.SelectedIndex = 0;
                upnlClient.Update();

                ddlTeamMember.DataSource = employeeList.Table;
                ddlTeamMember.DataValueField = "EmployeeID";
                ddlTeamMember.DataTextField = "FullName";
                ddlTeamMember.DataBind();

                odsProject.SelectParameters.RemoveAt(2);
                odsProject.SelectParameters.Add("clientId", "-1");
                odsProject.Select();
                ddlProject.DataBind();
                ddlProject.SelectedIndex = 0;
                upnlProject.Update();

                projectTimeApproveTDS = this.SubmitSearch();

                // Store Datasets
                Session["projectTimeApproveTDS"] = projectTimeApproveTDS;
                projectTimeApprove = projectTimeApproveTDS.ProjectTimeApprove;
                Session["projectTimeApprove"] = projectTimeApproveTDS.ProjectTimeApprove;

                // If coming from
                // ... timesheet_edit.aspx, timesheet_summary.aspx or timesheet_delete.aspx
                if ((Request.QueryString["source_page"] == "timesheet_edit.aspx") || (Request.QueryString["source_page"] == "timesheet_summary.aspx") || (Request.QueryString["source_page"] == "timesheet_delete.aspx"))
                {
                    // ... restore top values
                    RestoreNavigatorState();

                    // ... filter grid information
                    //SetFilterByCountryIdClientIdProjectId();
                    //SetFilterByEmployeeIdDate();
                    SetFilterByClientIdProjectIdEmployeeIdDate();
                }

                ViewState["filter_expression"] = "Deleted = 0";

                SetFocus();
            }
            else
            {
                // Restore dataset
                projectTimeApproveTDS = (ProjectTimeApproveTDS)Session["projectTimeApproveTDS"];
                projectTimeApprove = projectTimeApproveTDS.ProjectTimeApprove;
                Session["projectTimeApprove"] = projectTimeApproveTDS.ProjectTimeApprove;
            }
        }