Convert to Query String from IDictionary
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Net;
using System.Security.Cryptography;
namespace Amazon.Services
{
public static class Utility
{
#region Static Methods
public static String ToQueryString(IDictionary<String, String> parameters)
{
StringBuilder data = new StringBuilder();
foreach (String key in parameters.Keys)
{
if (parameters[key] != null)
data.AppendFormat("{0}={1}&", key, Utility.UrlEncode(parameters[key]));
}
return data.Remove(data.Length - 1, 1).ToString();
}
public static String UrlEncode(String data)
{
StringBuilder encoded = new StringBuilder();
String unreservedChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~";
foreach (char symbol in System.Text.Encoding.UTF8.GetBytes(data))
{
if (unreservedChars.IndexOf(symbol) != -1)
encoded.Append(symbol);
else
encoded.Append("%" + String.Format("{0:X2}", (int)symbol));
}
return encoded.ToString();
}
public static String EscapeXml(String str)
{
str = str.Replace("&", "&");
str = str.Replace("<", "<");
str = str.Replace(">", ">");
str = str.Replace("'", "'");
return str.Replace("\"", """);
}
public static String UnescapeXml(String str)
{
str = str.Replace(""", "\"");
str = str.Replace("'", "'");
str = str.Replace(">", ">");
str = str.Replace("<", "<");
return str.Replace("&", "&");
}
#endregion
}
}
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