DataGrid 中有一列 是radioButtonList 第一加载页面的时候没有问题,第二次就出现下面的问题:未能加载视图状态

Question

未能加载视图状态。正在向其中加载视图状态的控件树必须与前一请求期间用于保存视图状态的控件树相匹配。例如，当以动态方式添加控件时，在回发期间添加的控件必须与在初始请求期间添加的控件的类型和位置相匹配。

Answer 1

<asp:datagrid id="DataGrid3" runat="server" Width="100%" AllowPaging="True"
PageSize="15" AutoGenerateColumns="False">
<FooterStyle BackColor="#D0EBEE"></FooterStyle>
<ItemStyle Height="20px"></ItemStyle>
<HeaderStyle Height="20px" BackColor="#D0EBEE"></HeaderStyle>
<PagerStyle Visible="False"></PagerStyle>
                            <Columns>                                
                                <asp:BoundColumn DataField="username" HeaderText="网址人员">
                                    <HeaderStyle Width="25%" Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center" />
                                    <ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False"
                                        Font-Underline="False" HorizontalAlign="Center" />
                                </asp:BoundColumn>
                                <asp:BoundColumn DataField="num" HeaderText="数量">
                                    <HeaderStyle Width="25%" Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center" />
                                    <ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False"
                                        Font-Underline="False" HorizontalAlign="Center" />
                                </asp:BoundColumn>
                                <asp:BoundColumn DataField="Dtime" HeaderText="时间">
                                    <HeaderStyle Width="25%" Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center" />
                                    <ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False"
                                        Font-Underline="False" HorizontalAlign="Center" />
                                </asp:BoundColumn>
                                <asp:BoundColumn DataField="dealresult" HeaderText="处理结果">
                                    <HeaderStyle Width="25%" Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center" />
                                    <ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False"
                                        Font-Underline="False" HorizontalAlign="Center" />
                                </asp:BoundColumn>
                            </Columns>
</asp:datagrid>