Gridview标题行错乱

<Columns>
                        <asp:TemplateField HeaderText="编号"><HeaderStyle BorderWidth="50px" Height="30px" /><ItemTemplate><%#(Container.DataItemIndex+1) %></ItemTemplate>
                        </asp:TemplateField>
                        <asp:BoundField DataField="name" HeaderText="用户名" ReadOnly="True" />
                        <asp:BoundField DataField="realname" HeaderText="姓名">
                        <HeaderStyle BorderWidth="60px" />
                        </asp:BoundField>
                        <asp:BoundField DataField="department" HeaderText="部门">
                        <HeaderStyle BorderWidth="100px" />
                        </asp:BoundField>
                        <asp:BoundField DataField="time" HeaderText="注册日期" ReadOnly="True" />
                        <asp:CommandField HeaderText="选择" ShowSelectButton="True">
                        <HeaderStyle BorderWidth="60px" />
                        </asp:CommandField>
                        <asp:CommandField HeaderText="编辑" ShowEditButton="True">
                        <HeaderStyle BorderWidth="60px" />
                        </asp:CommandField>
                        <asp:CommandField HeaderText="删除" ShowDeleteButton="True">
                        <HeaderStyle Width="60px" />
                        </asp:CommandField>
                    </Columns>
                    <FooterStyle BackColor="#B5C7DE" ForeColor="#4A3C8C" />
                    <HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#F7F7F7" />
                    <PagerSettings Visible="False" />
                    <PagerStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" HorizontalAlign="Right" />
                    <RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" />
                    <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="#F7F7F7" />
                    <SortedAscendingCellStyle BackColor="#F4F4FD" />
                    <SortedAscendingHeaderStyle BackColor="#5A4C9D" />
                    <SortedDescendingCellStyle BackColor="#D8D8F0" />
                    <SortedDescendingHeaderStyle BackColor="#3E3277" />
                </asp:GridView>[local]1[/local]