protected void btnConfirm_Click(object sender, EventArgs e)
    {
        //proId,name,
        string procId   = lblProcId.Text;
        string procName = lblProcName.Text;
        string userCode = GetEmployee().Id;
        string userName = GetEmployee().Name;

        List <Person> items = new List <Person>();

        if (ViewState["SelectedPersons"] != null)
        {
            items = (List <Person>)ViewState["SelectedPersons"];
        }
        //insert
        foreach (var item in items)
        {
            if (!BPMHelp.ExistAuthorization(procId, userCode, item.EmployeeCode))
            {
                BPMHelp.InsertAuthorization(userCode, userName, procId, procName, item.EmployeeCode, item.EmployeeName);
            }
        }

        GoToPage();
    }