Question

我有2个链接

 <li class="active">
  <a href="<%#CurrentSearchUrl%>"><span>Current search Page
 </span></a> 

  <li><a href="<%#CurrentSearchUrlParam%>"><span>Add param </span>
      </a>

在Page_Load

中

    CurrentSearchUrl = Request.Url.AbsoluteUri;
    CurrentSearchUrlParam = Request.Url+"&discount=1";

添加了param，但url不正确我目前的网址是

http://localhost:1067/search/default.aspx?q=test

我想添加一个参数，所需的结果应该是

http://localhost:1067/search/default.aspx?q=test&discount=1

提前致谢

Answer 1

        var uriBuilder = new UriBuilder(Request.Url.AbsoluteUri);
        var paramValues = HttpUtility.ParseQueryString(uriBuilder.Query);
        paramValues.Add("param1", "value1");
        paramValues.Add("param2", "value2");
        uriBuilder.Query = paramValues.ToString();

        Link1.HRef=uriBuilder.Uri;

Answer 2

小心已有的参数。这是Victor＆＃39;的一个小修改。代码：

    var uriBuilder = new UriBuilder(Request.Url.AbsoluteUri);
    var paramValues = HttpUtility.ParseQueryString(uriBuilder.Query);

    if(paramValues.Get("param1")!=null) paramValues.Remove("param1");

    paramValues.Add("param1", "value1");
    paramValues.Add("param2", "value2");
    uriBuilder.Query = paramValues.ToString();

    Link1.HRef=uriBuilder.Uri;

Answer 3

有很多方法可以做到这一点。例如：

您的HTML：

<li class="active">
  <a href="" runat="server" ID="Link1"><span>Current search Page
 </span></a> 

  <li><a href="" runat="server" ID="Link2"><span>Add param </span>
      </a>

在Page_Load：

中

Link1.HRef = HttpContext.Current.Request.Url.ToString();
Link2.HRef = HttpContext.Current.Request.Url.ToString()+"&discount=1";

如何在c＃中向当前url添加一个参数

3 个答案: