RM.Common/DotNetCode/RequestHelper.cs

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using System.Runtime.InteropServices;
using System.Web;

namespace RM.Common.DotNetCode
{
    public class RequestHelper
    {
        public static string GetScriptNameQueryString
        {
            get
            {
                return HttpContext.Current.Request.ServerVariables["QUERY_STRING"].ToString();
            }
        }

        public static string GetScriptName
        {
            get
            {
                return HttpContext.Current.Request.ServerVariables["SCRIPT_NAME"].ToString();
            }
        }

        public static string GetScriptUrl
        {
            get
            {
                return (RequestHelper.GetScriptNameQueryString == "") ? RequestHelper.GetScriptName : string.Format("{0}?{1}", RequestHelper.GetScriptName, RequestHelper.GetScriptNameQueryString);
            }
        }

        public static string GetScriptNameQuery
        {
            get
            {
                return HttpContext.Current.Request.Url.Query;
            }
        }

        [DllImport("wininet")]
        private static extern bool InternetGetConnectedState(out int connectionDescription, int reservedValue);

        public static bool IsConnectedInternet()
        {
            int i = 0;
            return RequestHelper.InternetGetConnectedState(out i, 0);
        }

        public static string UrlEncode(string str)
        {
            string result;
            if (string.IsNullOrEmpty(str))
            {
                result = "";
            }
            else
            {
                str = str.Replace("'", "");
                result = HttpContext.Current.Server.UrlEncode(str);
            }