JavaScript擷取GridView控制項中選中行的行號和指定列的值

首先在模板列中添加一個按鈕用來選中行，頁面有關代碼如下：

<asp:GridView ID="gdview" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None"
                                            Height="176px" Width="380px" OnRowDataBound="gdview_RowDataBound" OnSelectedIndexChanging="gdview_SelectedIndexChanging">
                                            <FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
                                            <RowStyle BackColor="#E3EAEB" />
                                            <PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
                                            <SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
                                            <HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
                                            <EditRowStyle BackColor="#7C6F57" />
                                            <AlternatingRowStyle BackColor="White" />
                                            <Columns>
                                                <asp:TemplateField>
                                                    <ItemTemplate>
<input id="btnLocation" type="button" value="定位到" onclick="Select()" style="height: 20px" />
                                                    </ItemTemplate>
                                                </asp:TemplateField>
                                            </Columns>
                                        </asp:GridView>

指令碼代碼如下：

//取得gridview中擷取選中行指定列的值
      function Select()
      {
            //擷取滑鼠點擊的元素
            var e=event.srcElement;
            //擷取元素所在的行的行號（表頭行號從0開始）。注意：parentElement只適用於IE瀏覽器，而parentNode則符合DOM標準。
            //var rowIndex=e.parentElement.parentElement.rowIndex ;
            var rowIndex=e.parentNode.parentNode.rowIndex ;
            //擷取GridView控制項
            var gdview=document.getElementById("<%=gdview.ClientID %>");
            //分別擷取選定行指定列的值
            var value=gdview.rows(rowIndex).cells(列號).innerText;
      }