private void BtnOK_Click(object sender, EventArgs e)
 {
     externalApplication             = new SettingExternalApplication();
     externalApplication.Extension   = txtExtension.Text;
     externalApplication.Application = txtPath.Text;
     DialogResult = DialogResult.OK;
     Close();
 }
        public frmSettingExternalApplicationAddEdit(SettingExternalApplication externalApplication, int mode)
        {
            InitializeComponent();
            this.externalApplication = externalApplication;
            switch (mode)
            {
            case 0:
                Text = "Add External App";
                txtExtension.Text = null;
                txtPath.Text      = null;
                break;

            case 1:
                Text = "Edit External App";
                txtExtension.Text = externalApplication.Extension;
                txtPath.Text      = externalApplication.Application;
                break;
            }

            InitLanguageOptions();
        }