我想您的问题类似于此 [ ^ ]问题.

检查一下.希望对您有帮助.

[更新]

检查这些链接.

如何设置，更改菜单BackColor(背景色) [ ^ ]
如何在单击后更改菜单背景颜色? [添加悬停asp.net中菜单的属性，我正在使用菜单链接 [

Hi,

I guess your question is similar to this[^] question.

check that. hope it helps.

[UPDATED]

check these links.

How to set, change Menu BackColor (BackGround color)[^]
How to change menu background color after click?[^]
Add hover property for menu in asp.net, I am using a link as menu[^]