css和主页asp.net问题

时间:2011-04-20 12:44:01

标签: .net asp.net html master

我在asp.net项目的母版页中使用了以下代码

<a runat="server" href="home.htm" onmouseover="document.Home_Img.src='Images/home_2.png'"
        onmouseout="document.Home_Img.src='Images/home.png'">
        <img alt="" src="Images/home.png" name="Home_Img" runat="server" />
    </a>

它适用于根目录中的所有关联webforms,但不适用于子目录页面。 任何sugesstion都会得到尊重。

Thnx提前......

2 个答案:

答案 0 :(得分:6)

您使用相对网址Images/home.png作为图片位置,将其更改为绝对/Images/home.png

<a runat="server" href="home.htm" onmouseover="document.Home_Img.src='/Images/home_2.png'"
        onmouseout="document.Home_Img.src='/Images/home.png'">
        <img alt="" src="/Images/home.png" name="Home_Img" runat="server" />
    </a>

此外,这与CSS无关,因为您使用的是旧式Javascript鼠标悬停。我强烈建议您将其更改为:

<style>
a.home {
    background: url(/Images/home.png) no-repeat;
    display: block; /* this may not be correct, depends on the layout */
    height: 100px; /* height of image */
    text-indent: 9999px;
    width: 100px; /* width of image */
}
a.home:hover {
    background: url(/Images/home_2.png) no-repeat;
}
</style>

<a class="home" href="home.htm">Home</a>

答案 1 :(得分:2)

将您的包装的URL放在ResolveUrl中,如下所示:

<a runat="server" href="<%= this.ResolveUrl("home.htm") %>" onmouseover="document.Home_Img.src='<%= this.ResolveUrl("Images/home_2.png") %>'"
        onmouseout="document.Home_Img.src='<%= this.ResolveUrl("Images/home.png") %>'">
        <img alt="" src="Images/home.png" name="Home_Img" runat="server" />
    </a>