sessionsample

default

txt

using AdHoc.DataStorage;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.SessionState;

public class CustomSessionStorage : IDataStorage
{
	private HttpSessionState SessionNullable
	{
		get
		{
			HttpContext context = HttpContext.Current;
			if (context != null)
				return context.Session;
			return null;
		}
	}

private HttpSessionState Session
	{
		get
		{
			HttpSessionState session = SessionNullable;
			if (session != null)
				return session;
			throw new Exception("Session data storage provider was not available");
		}
	}

public bool ProviderAvailable
	{
		get { return SessionNullable != null; }
	}

public string ProviderInstanceID
	{
		get { return Session.SessionID; }
	}

public object Get(string key)
	{
		if (Session == null)
			return null;
		return Session[key];
	}

public void Set(string key, object value)
	{
		Session[key] = value;
	}

public void Remove(string key)
	{
		HttpSessionState session = Session;
		if (session != null)
			session.Remove(key);
	}

public bool Contains(string key)
	{
		return Session[key] != null;
	}

public void Clear()
	{
		HttpSessionState session = Session;
		if (session != null)
			session.Clear();
	}

public object this[string key]
	{
		get
		{
			return Get(key);
		}
		set
		{
			Set(key, value);
		}
	}

public string[] AllKeys
	{
		get
		{
			HttpSessionState session = Session;
			List<string> allKeys = new List<string>();
			foreach (string key in session.Keys)
				allKeys.Add(key);
			return allKeys.ToArray();
		}
	}

public CustomSessionStorage()
	{
		HttpSessionState session = SessionNullable;
		if (session !=null && session.IsCookieless)
			throw new Exception("CookieLess mode not supported.");
	}
}

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