How to login in to connect

[kamble...@gmail.com]

Hello,
 I have successfully loaded the plugin in Ami-broker ,while connecting, it is asking me for ID and Password. I checked the codes, where code is:
 
private void btnLogin_Click(object sender, System.Windows.RoutedEventArgs e)
        {
            System.Windows.MessageBox.Show("Hello " + txtUserName.Text);
        }

How can i connect to plugin and which function passes the data to Ami-broker?
 

Thank You so much!!