ASP.NET 4.0删除控件后菜单控件的渲染问题RenderingCompatibilityVersion =“3.5”

如果我删除页面controlRenderingCompatibilityVersion属性，它们不再显示为嵌套表，而是作为ul / li Tags。这在很多方面打破了我的布局。对于迁移复杂的ASP.NET菜单布局的任何建议都是非常受欢迎的。

编辑：标记和CSS详细信息作为对评论的回复

皮肤文件的相关部分

<asp:Menu runat="server" DynamicHorizontalOffset="2" Orientation="Horizontal" SkipLinkText=""
    StaticPopoutIR_684_11845@ageUrl="~/App_Images/Themes/arrow_down.gif" DynamicPopoutIR_684_11845@ageUrl="~/App_Images/Themes/arrow_right.gif">
    <StaticMenuItemStyle CssClass="MenuDefaultMenuItemStyle" />
    <DynamicMenuItemStyle  CssClass="MenuDefaultMenuItemStyle" />

    <StaticSELEctedStyle CssClass="MenuDefaultSELEctedStyle" />
    <DynamicSELEctedStyle CssClass="MenuDefaultSELEctedStyle" />

    <StaticHoverStyle CssClass="MenuDefaultHoverStyle" />
    <DynamicHoverStyle CssClass="MenuDefaultHoverStyle" />
</asp:Menu>

<asp:Menu runat="server" SkinId="MenuVertical" DynamicHorizontalOffset="2" SkipLinkText=""
    StaticPopoutIR_684_11845@ageUrl="~/App_Images/Themes/arrow_right.gif" DynamicPopoutIR_684_11845@ageUrl="~/App_Images/Themes/arrow_right.gif">
    <StaticMenuItemStyle CssClass="MenuVerticalMenuItemStyle" />
    <DynamicMenuItemStyle  CssClass="MenuVerticalMenuItemStyle" />

    <StaticSELEctedStyle CssClass="MenuVerticalSELEctedStyle" />
    <DynamicSELEctedStyle CssClass="MenuVerticalSELEctedStyle" />

    <StaticHoverStyle CssClass="MenuVerticalHoverStyle" />
    <DynamicHoverStyle CssClass="MenuVerticalHoverStyle" />
</asp:Menu>

样式表

.MenuDefaultMenuItemStyle
{
    BACkground-color: #D5DCE1;
    color: #234875;
    padding: 2px;
    width: 100%;
}

.MenuDefaultSELEctedStyle
{
    BACkground-color: #3C5778;
    color: #FFFFFF;
    padding: 2px;
    width: 100%;
}

.MenuDefaultHoverStyle
{
    BACkground-color: #666666;
    color: #FFFFFF;
    padding: 2px;
    width: 100%;
}

.MenuVerticalMenuItemStyle
{
    BACkground-color: #FFFFFF;
    border: 1px solid #D5DCE1;
    color: #234875;
    height: 30px;
    padding: 2px;
    width: 100%;
}

.MenuVerticalSELEctedStyle
{
    BACkground-color: #003366;
    border: 1px solid #D5DCE1;
    color: #FFFFFF;
    height: 30px;
    padding: 2px;
    width: 100%;
}

.MenuVerticalHoverStyle
{
    BACkground-color: #EEEEEE;
    border: 1px solid #000000;
    color: #234875;
    height: 30px;
    padding: 2px;
    width: 100%;
}