asp:GridView 合并相同資料項目行

前台：

<asp:GridView ID="gvInfo" runat="server" AutoGenerateColumns="False" CellPadding="4"                    ForeColor="#333333" HorizontalAlign="left" EmptyDataText="無" OnDataBound="GridView1_DataBound" Width="100%">                    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />                    <Columns>                        <asp:TemplateField HeaderText="序號">                            <ItemTemplate>                                <%#Container.DataItemIndex+1%>                            </ItemTemplate>                            <ItemStyle Width="5%" HorizontalAlign="Center" />                        </asp:TemplateField><asp:BoundField DataField="ShowDay" HeaderText="日期">                            <ItemStyle Width="10%" />                        </asp:BoundField>                        <asp:BoundField DataField="ShowTime" HeaderText="時間">                            <ItemStyle Width="20%" />                        </asp:BoundField>                        <asp:BoundField DataField="Place" HeaderText="地點">                            <ItemStyle Width="15%" />                        </asp:BoundField>                        <asp:BoundField DataField="Content" HeaderText="內容">                            <ItemStyle Width="25%" />                        </asp:BoundField>                        <asp:BoundField DataField="Persons" HeaderText="參加人員">                            <ItemStyle Width="15%" />                        </asp:BoundField>                    </Columns>                    <EditRowStyle BackColor="#2461BF" />                    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />                    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />                    <HeaderStyle BackColor="#cadef4" Font-Bold="True" ForeColor="#3b6798" />                    <AlternatingRowStyle BackColor="White" />                </asp:GridView

後台：

protected void Page_Load(object sender, EventArgs e){gvInfo.DataSource = List<T>;gvInfo.DataBind();}protected void GridView1_DataBound(object sender, EventArgs e){int row = 0;for (int i = 1; i < gvInfo.Rows.Count; i++){if (gvInfo.Rows[i].Cells[1].Text == gvInfo.Rows[i - 1].Cells[1].Text){if (gvInfo.Rows[row].Cells[1].RowSpan == 0) gvInfo.Rows[row].Cells[1].RowSpan++;gvInfo.Rows[row].Cells[1].RowSpan++;gvInfo.Rows[i].Cells[1].Visible = false;}else{row = i;}}}