var canonicallink = Request.Url.Scheme + "://" + Request.Url.Authority + Request.Url.AbsolutePath.ToString();

试试这个:

urlString=Request.RawUrl.ToString.Substring(0, Request.RawUrl.ToString.IndexOf("?"))

从这里:http://www.example.com/mypage.aspx?myvalue1=hello&myvalue2=goodbye 你会得到这个:mypage.aspx

this.Request.RawUrl.Substring(0, this.Request.RawUrl.IndexOf('?'))

Silverlight的解决方案:

string path = HtmlPage.Document.DocumentUri.GetComponents(UriComponents.SchemeAndServer, UriFormat.Unescaped);

我已经创建了一个简单的扩展，因为其他一些答案抛出空异常，如果没有QueryString开始:

public static string TrimQueryString(this string source)
{ 
    if (string.IsNullOrEmpty(source))
            return source;

    var hasQueryString = source.IndexOf('?') != -1;

    if (!hasQueryString)
        return source;

    var result = source.Substring(0, source.IndexOf('?'));

    return result;
}

用法:

var url = Request.Url?.AbsoluteUri.TrimQueryString() 

var canonicallink = Request.Url.Scheme + "://" + Request.Url.Authority + Request.Url.AbsolutePath.ToString();