ASP.NET MVC razor:HTML 中的条件属性 [英] ASP.NET MVC razor: conditional attribute in HTML

问题描述

下面的代码看起来不干净.有什么改进代码的建议吗?

Code below doesn't seems clean. Any suggestion to improve the code?

<li @if(ViewData["pagename"].ToString()=="Business details"){ <text>class="active" </text> } >
        <a  @if(ViewData["pagename"].ToString()=="Business details"){ <text>style="color: white; background-color: #08C; border: 1px solid #08C;" </text> }
            href="@Url.Action("BusinessDetails", "Business")">Business Details</a>
    </li> 
    <li @if (ViewData["pagename"].ToString() == "Booking policies"){ <text>class="active"</text> }> 
        <a  @if (ViewData["pagename"].ToString() == "Booking policies")
               { <text>style="color: white; background-color: #08C; border: 1px solid #08C;" </text> }
            href="@Url.Action("BookingPolicies", "Business")">Booking policies</a> 
    </li> 

推荐答案

MVC 具有内置的条件属性...

MVC has conditional attributes built in...

<div @{if (myClass != null) { <text>class="@myClass"</text> } }>Content</div>
<div class="@myClass">Content</div>

如果@myClass 为空，则它根本不会使用该属性...

If @myClass is null, it just won't use the attribute at all...

我知道这可能不能完全解决您当前的问题，但值得一提！

I know that may not quite solve your current issue, but it is noteworthy!

http://weblogs.asp.net/jgalloway/archive/2012/02/16/asp-net-4-beta-released.aspx

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