调试易

C#: 
protected void gvGoodsInfo_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gvGoodsInfo.PageIndex = e.NewPageIndex;
        this.gvbind();
    }
Aspx:
<asp:GridView ID="gvGoodsInfo" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" Font-Size="9pt" AutoGenerateColumns="False" AllowPaging="True" PageSize="8" OnPageIndexChanging="gvGoodsInfo_PageIndexChanging" Width="383px">
                <FooterStyle BackColor="#FF6D9C" Font-Bold="True" ForeColor="White" />
                <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
                <EditRowStyle BackColor="#999999" />
                <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
                <PagerStyle BackColor="#FF6D9C" ForeColor="Black" HorizontalAlign="Right" />
                <HeaderStyle BackColor="#FF6D9C" Font-Bold="True" ForeColor="White" />
                <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
                <Columns>
                    <asp:BoundField DataField="GoodsID" HeaderText="商品ID" Visible="False" />
                    <asp:BoundField DataField="GoodsTypeName" HeaderText="所属类别" />
                    <asp:BoundField DataField="StoreName" HeaderText="所属仓库" />
                    <asp:BoundField DataField="GoodsName" HeaderText="商品名称" />
                    <asp:HyperLinkField HeaderText="详细信息" Text="详细信息" DataNavigateUrlFields="GoodsID" DataNavigateUrlFormatString="EditGInfo.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/MemberManage/EditGInfo.aspx" >
                        <ControlStyle Font-Underline="False" ForeColor="Black" />
                        <ItemStyle Font-Underline="False" ForeColor="Black" />
                        <HeaderStyle Font-Underline="False" ForeColor="Black" />
                    </asp:HyperLinkField>
                </Columns>
            </asp:GridView>
请问C#中指的什么意思，越详细越好。谢谢帮忙！