private void Button_Click(object sender, RoutedEventArgs e) { if (this.R_Name.Text == "" || this.R_password.Text == "") { MessageBox.Show("用户名或密码不能为空!"); } else { CryptoServiceClient client = new CryptoServiceClient(); int c = client.Login(this.R_Name.Text, this.R_password.Text); if (c == 0) { MessageBox.Show("用户名或密码不正确!"); } else { IndexWindow indexWindow = new IndexWindow(); indexWindow.userName = this.R_Name.Text; indexWindow.Show(); this.Close(); } } }