学步园

        #region URL中去除指定参数
        /// <summary>
        /// 中去除指定参数
        /// </summary>
        /// <param name="url">地址</param>
        /// <param name="param">参数</param>
        /// <returns></returns>
        public static string buildurl(string url, string param)
        {
            string url1 = url;
            if (url.IndexOf(param) > 0)
            {
                if (url.IndexOf("&", url.IndexOf(param) + param.Length) > 0)
                {
                    url1 = url.Substring(0, url.IndexOf(param) - 1) + url.Substring(url.IndexOf("&", url.IndexOf(param) + param.Length) + 1);
                }
                else
                {
                    url1 = url.Substring(0, url.IndexOf(param) - 1);
                }
                return url1;
            }
            else
            {
                return url1;
            }
        }
        #endregion


     #region "获取页面url"
        /// <summary>
        /// 获取当前访问页面地址参数
        /// </summary>
        public static string GetScriptNameQueryString
        {
            get
            {
                return HttpContext.Current.Request.ServerVariables["QUERY_STRING"].ToString();
            }
        }
        /// <summary>
        /// 获取当前访问页面地址
        /// </summary>
        public static string GetScriptName
        {
            get
            {
                return HttpContext.Current.Request.ServerVariables["SCRIPT_NAME"].ToString();
            }
        }
        /// <summary>
        /// 获取当前访问页面Url
        /// </summary>
        public static string GetScriptUrl
        {
            get
            {
                return GetScriptNameQueryString == "" ? GetScriptName : string.Format("{0}?{1}", GetScriptName, GetScriptNameQueryString);
            }
        }
        /// <summary>
        ///  获取当前访问页面 参数
        /// </summary>
        public static string GetScriptNameQuery
        {
            get
            {
                return HttpContext.Current.Request.Url.Query;
            }
        }
        #endregion

 

要去除多个参数，这么使用就可以了。buildurl(buildurl(buildurl(url,param1),param2),param3)