public LeftMenu(wcf_chat.Users _user)
{
InitializeComponent();
user = _user;
GLeftMenu = this;
client = new ServiceChatClient(new System.ServiceModel.InstanceContext(this));
List <wcf_chat.Contacts> contacts = client.GetContacts(user.IdLogin).ToList();
foreach (wcf_chat.Contacts contact in contacts)
{
listBox.Items.Add(contact.LoginUserContact);
}
settings.MouseLeftButtonDown += Settings_MouseLeftButtonDown;
}