當DataGrid同時具有分頁和排序功能時應注意在重新綁定數據源時，MyDataGrid.CurrentPageIndex=0;
下面給實現以上功能的原碼，也就不多綴了aspx中包含有DataGrid和控制其數據源變化的dropdownlist
DataGrid代碼
  <asp:datagrid id="MyDataGrid" runat="server" BorderColor="#CCCCCC" Font-Size="100%" HorizontalAlign="Center"
            AutoGenerateColumns="False" OnDeleteCommand="MyDataGrid_Delete" OnSortCommand="Sort_Grid" OnPageIndexChanged="MyDataGrid_PageIndexChanged"
            DataKeyField="ACC_NO" PagerStyle-Position="Bottom" PagerStyle-HorizontalAlign="Center" PagerStyle-Mode="NextPrev"
            PageSize="10" AllowSorting="True" AllowPaging="True" CellPadding="4" Width="100%">
            <AlternatingItemStyle BackColor="#E9E9E6"></AlternatingItemStyle>
            <HeaderStyle Font-Bold="True" Wrap="False" ForeColor="White" BackColor="#999999"></HeaderStyle>
            <Columns>
             <asp:ButtonColumn Text="口" CommandName="Delete"></asp:ButtonColumn>
             <asp:BoundColumn DataField="NO" SortExpression="NO" ReadOnly="True" HeaderText="序號"></asp:BoundColumn>
             <asp:BoundColumn DataField="ID" SortExpression="ID" HeaderText="ID"></asp:BoundColumn>
             <asp:BoundColumn DataField="NAME" SortExpression="NAME" HeaderText="名稱"></asp:BoundColumn>
             <asp:BoundColumn DataField="C_NAME" SortExpression="C_NAME" HeaderText="各科名稱"></asp:BoundColumn>
             <asp:BoundColumn DataField="FLG" SortExpression="FLG" HeaderText="項目"></asp:BoundColumn>
            </Columns>
            <PagerStyle NextPageText="下10件" PrevPageText="返回" HorizontalAlign="Center"></PagerStyle>
           </asp:datagrid>

dropdownlist代碼
<asp:dropdownlist id="ddlWk" Runat="server" AutoPostBack="True" Enabled="False">
               <asp:ListItem Value="0">東京</asp:ListItem>
               <asp:ListItem Value="3">九州</asp:ListItem>