void ConnectUser()
{
if (!isConnected)
{
client = new ServiceChatClient(new System.ServiceModel.InstanceContext(this));
ID = client.Connect(textBox1.Text);
isConnected = true;
button1.Text = "Отключиться";
textBox1.Enabled = false;
AllData [] field = client.GetData();
for (int i = 0; i < field.Length; i++)
{
listBox1.Items.Add(Convert.ToDateTime(field[i].Time).ToString("HH:mm:ss") + " " + field[i].Username + " " + field[i].Message);
}
}
}