Hi Samu Zhang,

Your given code is not working in my application i have same problem as asubsal. 

ListView :

<asp:ListView ID="ListViewGroups" runat="server" ItemPlaceholderID="linksHolder" OnPagePropertiesChanging="ListViewGroups_PagePropertiesChanging" DataKeyNames="" >

<LayoutTemplate>

<ItemTemplate>

<asp:ListView ID="ListView1" runat="server" ItemPlaceholderID="itemPlaceHolder">

<LayoutTemplate><ItemTemplate></ItemTemplate></LayoutTemplate>

</ asp:ListView>

</ItemTemplate>

</LayoutTemplate>

</ asp:ListView>

DataPager:

<asp:DataPager ID="dPagerGroups" runat="server" PageSize="5" PagedControlID="ListViewGroups">

<Fields>
                    <asp:NextPreviousPagerField ShowFirstPageButton="true" ShowLastPageButton="false"
                        ShowNextPageButton="false" ShowPreviousPageButton="true" />
                    <asp:NumericPagerField />
                    <asp:NextPreviousPagerField ShowFirstPageButton="false" ShowLastPageButton="true"
                        ShowNextPageButton="true" ShowPreviousPageButton="false" />
                </Fields>

</asp:DataPager>

This is not working ....

Database connection and all other steps are correct.... just paging is not working..... plz give reply as soon as possible...