App_Code.Controls.PostPager.PageUrl C# (CSharp) Method

        private static string PageUrl()
        {
            var path = HttpContext.Current.Request.RawUrl.Replace("Default.aspx", string.Empty);
            if (path.Contains("?"))
            {
                if (path.Contains("page="))
                {
                    var index = path.IndexOf("page=");
                    path = path.Substring(0, index);
                }
                else
                {
                    path += "&";
                }
            }
            else
            {
                path += "?";
            }

            return HttpUtility.HtmlEncode(path + "page={0}");
        }