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Categories / C# / Network

 

Url Encode 2

using System; using System.IO; using System.Collections; using System.Text; using System.Text.RegularExpressions; using System.Xml.Serialization; namespace FlickrNet {     /// <summary>     /// Internal class providing certain utility functions to other classes.     /// </summary>     internal sealed class Utils     {         private Utils()         {         } #if !WindowsCE         internal static string UrlEncode(string oldString)         {             if (oldString == null) return null;             string a = System.Web.HttpUtility.UrlEncode(oldString);             a = a.Replace("&", "%26");             a = a.Replace("=", "%3D");             a = a.Replace(" ", "%20");             return a;         } #else         internal static string UrlEncode(string oldString)         {             if (oldString == null) return String.Empty;             StringBuilder sb = new StringBuilder(oldString.Length * 2);             Regex reg = new Regex("[a-zA-Z0-9$-_.+!*'(),]");             foreach (char c in oldString)             {                 if (reg.IsMatch(c.ToString()))                 {                     sb.Append(c);                 }                 else                 {                     sb.Append(ToHex(c));                 }             }             return sb.ToString();         }         private static string ToHex(char c)         {             return ((int)c).ToString("X");         } #endif     } }