public void AddOrUpdateUser(LanUser user, UpdateState updateState)
{
if (this.ContainsUser(user))
{
UserListItem item = this[user.ID];
if ((updateState & UpdateState.NickName) != 0)
{
item.Update();
}
this.Invalidate(item.Bounds);
UserChatControl chatControl = item.ChatControl;
if (chatControl != null)
{
chatControl.Contacter = user;
chatControl.SendMessageEnabled = (user.Status != UserStatus.Offline);
}
if (this.SelectedUser != null && this.SelectedUser.ID == user.ID)
{
//当前刚好表示着聊天记录则更新
if (chatControl != null)
{
chatControl.RefreshMessageList(null);
}
}
}
else
{
UserListItem item = new UserListItem(user);
item.Save();
this.Items.Add(item);
}
}
