Cookie help class

Using System;
Using System. Collections. Generic;
Using System. Linq;
Using System. Web;
Using System. IO;
Using System. Runtime. Serialization;
Using System. Runtime. Serialization. Formatters. Binary;
Using System. Web. Security;
Using System. Web. UI;
Using System. Web. UI. HtmlControls;
Using System. Web. UI. WebControls;
Using System. Data;
Using System. Configuration;
Namespace Bll
{
/// <Summary>
/// Cookie operation class
/// </Summary>
Public class CookieHelper
{
# Region save Cookie
/// <Summary>
/// Save the Cookie
/// </Summary>
/// <Param name = "CookieName"> Cookie name </param>
/// <Param name = "CookieValue"> Cookie value </param>
/// <Param name = "CookieTime"> Cookie expiration time (hours). 0 indicates that the page is disabled. </param>
Public static void SaveCookie (string CookieName, object CookieValue, double CookieTime)
{
HttpCookie myCookie = new HttpCookie (CookieName );
DateTime now = DateTime. Now;
MyCookie. Value = ConvertObjectToString (CookieValue );
If (CookieTime! = 0)
MyCookie. Expires = now. AddHours (CookieTime );
If (HttpContext. Current. Response. Cookies [CookieName]! = Null)
HttpContext. Current. Response. Cookies. Remove (CookieName );
HttpContext. Current. Response. Cookies. Add (myCookie );
}
Private static string ConvertObjectToString (object CookieValue)
{
BinaryFormatter bf = new BinaryFormatter ();
MemoryStream MS = new MemoryStream ();
Bf. Serialize (MS, CookieValue );
Byte [] result = new byte [ms. Length];
Result = ms. ToArray ();
String temp = System. Convert. ToBase64String (result );
Ms. Flush ();
Ms. Close ();
Return temp;
}
# Endregion
# Region obtain Cookie
/// <Summary>
/// Obtain the Cookie
/// </Summary>
/// <Param name = "CookieName"> Cookie name </param>
/// <Returns> Cookie value </returns>
Public static object GetCookie (string CookieName)
{
HttpCookie myCookie = new HttpCookie (CookieName );
MyCookie = HttpContext. Current. Request. Cookies [CookieName];
If (myCookie! = Null)
Return ConvertStringToObject (myCookie. Value );
Else
Return null;
}
Private static object ConvertStringToObject (string value)
{
Byte [] B = System. Convert. FromBase64String (value );
MemoryStream MS = new MemoryStream (B, 0, B. Length );
BinaryFormatter bf = new BinaryFormatter ();
Return bf. Deserialize (MS );
}
# Endregion
# Region clear Cookie
/// <Summary>
/// Clear Cookie
/// </Summary>
/// <Param name = "CookieName"> Cookie name </param>
Public static void ClearCookie (string CookieName)
{
HttpCookie myCookie = new HttpCookie (CookieName );
DateTime now = DateTime. Now;
MyCookie. Expires = now. AddYears (-2 );
HttpContext. Current. Response. Cookies. Add (myCookie );
}
# Endregion
}
}

 

Author wander. chu