根据内置的内部类PageThemeBuildProvider,asp.net CSS文件的创建相对路径包括在主题目录
internal void AddCssFile(VirtualPath virtualPath)
{
if (this._cssFileList == null)
{
this._cssFileList = new ArrayList();
}
this._cssFileList.Add(virtualPath.AppRelativeVirtualPathString);
}
为了解决你的问题,你可以尝试使用基本标签:
//Add base tag which specifies a base URL for all relative URLs on a page
System.Web.UI.HtmlControls.HtmlGenericControl g = new System.Web.UI.HtmlControls.HtmlGenericControl("base");
//Get app root url
string AppRoot = Request.Url.AbsoluteUri.Replace(Request.Url.PathAndQuery, "");
g.Attributes.Add("href",AppRoot);
Page.Header.Controls.AddAt(0,g);
使用这种方法的坏处是,如果应用程序URL被更改,链接将会中断。
为了尽量减少这种变化的影响,你可以使用HTML包括代替基本标记,包括包含您的基本标记如下文件:
base.html文件包含:
<base href="http://localhost:50897"></base>
这可能在应用程序创建开始请求:
bool writeBase = true;
protected void Application_BeginRequest(object sender, EventArgs e)
{
if (writeBase)
{
writeBase = false;
//Save it to a location that you can easily reference from saved html pages.
string path = HttpContext.Current.Server.MapPath("~/App_Data/base.html");
using (System.IO.TextWriter w = new System.IO.StreamWriter(path, false))
{
w.Write(string.Format("<base href=\"{0}\"></base>", HttpContext.Current.Request.Url.AbsoluteUri.Replace(HttpContext.Current.Request.Url.PathAndQuery, "")));
w.Close();
}
}
}
和添加文字控制你的aspx:
//the path here depends on where you are saving executed pages.
System.Web.UI.LiteralControl l = new LiteralControl("<!--#include virtual=\"base.html\" -->");
Page.Header.Controls.AddAt(0,l);
saved.html包含:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<!--#include virtual="base.html" -->
...
</head>
....
</html>
UPDATE: 这是在asp.net开发服务器进行测试,如果托管的IIS下的应用为approot将无法正确解析。要获得正确的应用程序绝对url使用:
/// <summary>
/// Get Applications Absolute Url with a trailing slash appended.
/// </summary>
public static string GetApplicationAbsoluteUrl(HttpRequest Request)
{
return VirtualPathUtility.AppendTrailingSlash(string.Format("{0}://{1}{2}", Request.Url.Scheme, Request.Url.Authority, Request.ApplicationPath));
}