Store multiple values in a session variable

Question

Before I ask my question, please consider this scenario: a user on my website has a profileID . There are some pluginID 's associated with this profileID .

Eg: User1 might have 2, 3 and 5 plugins associated with his profile.

When the user logs in, I store the profileID of the user in a session variable cod . ON a certain page, the user tries to edit the plugins associated with his profile. So, on that page, I have to retrieve those pluginID 's from the DB.

I have applied this code but this fetches only the maximum pluginID from the DB and not all the pluginID 's.

SqlCommand cmd1 = new SqlCommand("select plugin_id from profiles_plugins where id=(select id from profiles_plugins where profile_id=" + Convert.ToInt32(Session["cod"]) + ")", con);
SqlDataReader dr1 = cmd1.ExecuteReader();
if (dr1.HasRows)
{
  while (dr1.Read())
  {
    Session["edp1"] = Convert.ToInt32(dr1[0]);
  }
}
dr1.Close();
cmd1.Dispose();

I was trying to figure out how can I store multiple pluginID 's in this session variable?

Thanks

Answer 1

Read the value to a list or array first and then store the list or array:

using(SqlCommand cmd1 = new SqlCommand("select plugin_id from profiles_plugins where id=(select id from profiles_plugins where profile_id=" + Convert.ToInt32(Session["cod"]) + ")", con))
{

    SqlDataReader dr1 = cmd1.ExecuteReader();
    var yourList = new List<int>();
    if (dr1.HasRows)
    {
        while (dr1.Read())
        {
           yourList.Add(Convert.ToInt32(dr1[0]));
        }
    }
    Session["edp1"] = yourList;
    dr1.Close();
}

Also, read Marc Gravell's comment on your question.

Answer 2

You can store whatever objects you like under a session key, not only scalar values. So simply define a custom type containing all the values you would like to store, create an instance of this type and put it into the session.