private void saveModificationAndClose()
        {
            try
            {
                CAwsConfig.Instance.write("AwsAccessKey", AwsAccessKey.ActucalText);
                CAwsConfig.Instance.write("AwsSecretKey", AwsSecretKey.ActucalText);
                CAwsConfig.Instance.write("Ec2CertPath", Ec2CertPath.ActucalText);
                CAwsConfig.Instance.write("Ec2Home", Ec2Home.ActucalText);
                CAwsConfig.Instance.write("Ec2UserPrivateKey", Ec2UserPrivateKey.ActucalText);
                CAwsConfig.Instance.write("JavaHome", JavaHome.ActucalText);
                CAwsConfig.Instance.commit();

                if (_dashboard != null)
                {
                    _dashboard.configurationReady();
                }

                this.Close();
            }
            catch (Exception ex)
            {
                System.Windows.MessageBox.Show(ex.Message);
            }
        }