protected void showChat()
{
client.User = new User(userNameTextBox.Text, passwordTextBox.Text);
var frm = new Views.Chat(client);
frm.Location = this.Location;
frm.StartPosition = FormStartPosition.Manual;
frm.FormClosing += delegate
{
client = null;
this.Show();
};
frm.Show();
this.Hide();
}