///<summary>
///Removes user from Channel
///</summary>
private void RemoveUser(User user)
{
if (Online.Contains(user))
{
Online.Remove(user);
}
}
///<summary>
///Add user to Channel
///</summary>
private void AddUser(User user)
{
if (!Online.Contains(user))
{
Online.Add(user);
}
}