/// <summary>
/// Removes an item from the session
/// </summary>
/// <param name="sessionKey">Name of the session object</param>
public static void RemoveSessionValue(SessionValue sessionKey)
{
HttpSessionState session = HttpContext.Current.Session;
if (SessionKeyExists(sessionKey.ToString()))
{
session.Remove(sessionKey.ToString());
}
}
/// <summary>
/// Retrieves an item from the session cache
/// </summary>
/// <param name="sessionKey">Name of the session object</param>
/// <returns>Object - the item being retrieved from the session store</returns>
public static object GetSessionValue(SessionValue sessionKey)
{
object retVal;
HttpSessionState session = ((HttpSessionState)HttpContext.Current.Session);
try
{
if (SessionKeyExists(sessionKey.ToString()))
{
retVal = session[sessionKey.ToString()];
}
else
{
retVal = null;
}
}
catch (Exception)
{
retVal = null;
}
return retVal;
}
/// <summary>
/// Saves a session object for a Key
/// </summary>
/// <param name="sessionKey">Name of the session object</param>
/// <param name="objectValue">The object value.</param>
public static void SaveSessionValue(SessionValue sessionKey, object objectValue)
{
HttpContext.Current.Session[sessionKey.ToString()] = objectValue;
}
/// <summary>
/// Saves a value to the session cache
/// </summary>
/// <param name="sessionKey">Name of the session object</param>
/// <param name="sessionObject">Item being saved in the session</param>
public static void SetSessionValue(SessionValue sessionKey, Object sessionObject)
{
HttpSessionState session = HttpContext.Current.Session;
try
{
if (SessionKeyExists(sessionKey.ToString()))
{
session.Remove(sessionKey.ToString());
}
session.Add(sessionKey.ToString(), sessionObject);
}
catch (Exception)
{
// do nothing
}
}
/// <summary>
/// Checks whether a key exists in the current session
/// </summary>
/// <param name="sessionKey">SessionValue enum</param>
/// <returns>Boolean - -True for the existence of the session key</returns>
public static bool SessionKeyExists(SessionValue sessionKey)
{
bool keyExists = false;
HttpSessionState session = HttpContext.Current.Session;
foreach (string key in session.Keys)
{
if (key.Equals(sessionKey.ToString(), StringComparison.OrdinalIgnoreCase))
{
keyExists = true;
break;
}
}
return keyExists;
}