protected void ButtonSave_Click(object sender, System.EventArgs e)
        {
            if (Page.IsValid)
            {
                int    ops_region_id = -1;
                string ops_region    = this.TextBoxOPSRegion.Text;
                string country       = Convert.ToString(this.DropDownListCountries.SelectedValue);

                int result = -1;

                switch (SessionHandler.MappingOPSRegionDefaultMode)
                {
                case (int)App.BLL.Mappings.Mode.Insert:
                    result = MappingsOPSRegions.InsertOPSRegion(ops_region, country);

                    break;

                case (int)App.BLL.Mappings.Mode.Edit:
                    ops_region_id = Convert.ToInt32(this.LabelOPSRegionId.Text);
                    result        = MappingsOPSRegions.UpdateOPSRegion(ops_region_id, ops_region, country);

                    break;
                }

                if (result == 0)
                {
                    //Success
                    _errorMessage = Resources.lang.MessageOPSRegionSaved;
                }
                else
                {
                    //Failed
                    _errorMessage = Resources.lang.ErrorMessageAdministrator;
                }

                //Raise custom event from parent page
                if (SaveMappingDetails != null)
                {
                    SaveMappingDetails(this, EventArgs.Empty);
                }
            }
            else
            {
                //Keep the modal popup form show
                this.ModalPopupExtenderMappingDetails.Show();
            }
        }