GridView自定義分頁---派生類(3)

 /// <summary>

        /// 加入 查詢筆數顯示

        /// </summary>

        /// <param name="fields"></param>

        private void CreateResultRow(DataControlField[] fields)

        {

            GridViewRow row = new GridViewRow(-1, -1, DataControlRowType.DataRow, DataControlRowState.Normal);

            row.ID = "trQueryResultExcel";

            row.CssClass = "QueryResultCSS";

            row.Cells.Clear();

            TableHeaderCell cell = new TableHeaderCell();

            cell.HorizontalAlign = HorizontalAlign.Left;

            row.Cells.Add(cell);

            cell.Style.Add("border", "0px");

            cell.Style.Add("padding", "0 0 3px 0");

            cell.ColumnSpan = fields.Length;

            Literal liter = new Literal();

            liter.Text = String.Format("<font color='#2A58A4' ><b>查詢結果：共 {0} 筆資料 </b></font>", TotalCount);

            cell.Controls.Add(liter);

            Table t = this.Controls[0] as Table;

            t.Rows.AddAt(0, row);

        }

        /// <summary>

        /// 創建匯出excel button

        /// </summary>

        /// <param name="row"></param>

        /// <param name="colspan"></param>

        private void AddExportExcelButton(TableHeaderCell cell)

        {

            Button btn = new Button();

            btn.ID = "btnExporExcel"+this.ID;

            btn.Text = "匯出Excel檔";

            btn.Width = Unit.Parse("80px");

            btn.CssClass = "btn_mouseout";

            btn.CausesValidation = false;

            btn.Click += new EventHandler(btn_Click);

            HtmlGenericControl div1 = new HtmlGenericControl("div");

            div1.Style.Add("float", "right");

            div1.Controls.Add(btn);

            cell.Controls.Add(div1);

           

            if (Page.Master != null && Page.Master.FindControl("ToolkitScriptManager1") != null)

            {

                ((ScriptManager)Page.Master.FindControl("ToolkitScriptManager1")).RegisterPostBackControl(btn);

            }

            else if (Page.FindControl("ToolkitScriptManager1") != null)

            {

                ((ScriptManager)Page.FindControl("ToolkitScriptManager1")).RegisterPostBackControl(btn);

            }

        }

        /// <summary>

        /// 取得查無資料時要顯示的欄位

        /// </summary>

        /// <returns>查無資料時要顯示的欄位</returns>

        private DataControlField[] GetEmptyFields()

        {

            List<DataControlField> list = new List<DataControlField>(this.Columns.Count);

            

            foreach (DataControlField field in this.Columns)

            {

                if (field.Visible)

                {

                    list.Add(field);

                }

            }

            

            return list.ToArray();

        }