SessionFarm from ASP.NET

SessionFarm allows you to access and update the old Session object’s variables from ASP.NET webforms. Here’s what you’ll need to do:

1. Add a reference to SessionFarmNet.dll for your ASP.NET project. Installed into your sessionfarm install directory, usually:

   c:\program files\groat.com\sessionfarm\sessionfarmnet.dll

2. Load the ASPSession object. You’ll notice that when you create the ASPSession object you pass in a connectionstring to the database, and the current webform’s Request and Response objects.

   Groat.SessionFarm.ASPSession aspsession = new Groat.SessionFarm.ASPSession(ConnectionString, Request, Response);

3. There are several ways to read a Session variable:

   aspsession.GetValue(“variablename”); (will return “” if variable not found) aspsession.Contents[“variablename”]; (will throw an exception if variable doesn’t exist)

4. You can use foreach to loop through all of the Session variables:

   foreach(Object obj in aspsession) { DictionaryEntry entry = (DictionaryEntry)obj; Response.Write(entry.Key); Response.Write(" = "); Response.Write(entry.Value); }

5. There are several ways to set a Session variable (be sure to see point #6 on saving changes):

   aspsession.SetValue(“variablename”, “new value”); (works if variable exists or not) aspsession.Contents[“variablename”] = “new value”; (if the variable exists in contents)

6. If you want to save your changes to the Session variables:

   aspsession.Save();