. NET common tool class--session operation class

Using System;
Using System.Collections.Generic;
Using System.Text;
Using System.Web;
Using System.Web.SessionState;
Using System.Web.UI;
Using System.Web.UI.HtmlControls;
Using System.Web.UI.WebControls;
Using System.Web.UI.WebControls.WebParts;

Namespace ZC. Utils
{
<summary>
<para> </para>
Common tool class--session operation class
<para>----------------------------------------------------------</para>
<para> Addsession: Add session, valid for default </para>
<para> Addsession: Add session and adjust the validity period to minutes or years </para>
<para> GetSession: Reads a Session object value </para>
<para> Delsession: Delete a Session object </para>
</summary>
public class Session
{

public Object This[string Key]
{
Get
{
return Get (key);
}
Set
{
Set (key, value, 60, 0);
}
}



#region Add session, valid for default
<summary>
Add session, valid for default
</summary>
<param name= "Strsessionname" >session object name </param>
<param name= "strvalue" >session value </param>
public static void Add (String strsessionname, Object ObjValue)
{
Httpcontext.current.session[strsessionname] = ObjValue;
}
#endregion

#region Add session and adjust the validity period to minutes or years
<summary>
Add a session and adjust the validity period to minutes or years
</summary>
<param name= "Strsessionname" >session object name </param>
<param name= "strvalue" >session value </param>
<param name= "Iexpires" > minutes: Greater than 0 is valid for the number of minutes, equals 0 is valid for the following year </param>
<param name= "Iyear" > Years: When the number of minutes is 0 years is the validity period, when the number of minutes is greater than 0 o'clock this parameter is set at random </param>
public static void Set (String strsessionname, Object objvalue, int iexpires, int iyear)
{
Httpcontext.current.session[strsessionname] = ObjValue;
if (Iexpires > 0)
{
HttpContext.Current.Session.Timeout = Iexpires;
}
else if (iyear>0)
{
HttpContext.Current.Session.Timeout = * 365 * iyear;
}
}
#endregion

#region reading a Session object value
<summary>
Reading a Session object value
</summary>
<param name= "Strsessionname" >session object name </param>
<returns>session Object Values </returns>
public static Object Get (String strsessionname)
{
return Httpcontext.current.session[strsessionname];
}
#endregion

#region Delete a Session object
<summary>
Delete a Session object
</summary>
<param name= "Strsessionname" >session object name </param>
public static void Remove (String strsessionname)
{
HttpContext.Current.Session.Remove (Strsessionname);
}
#endregion
}
}

. NET common tool class--session operation class