private void Registrations_Load(object sender, EventArgs e) { string authenticationCode = RegistrationHelper.GetAuthenticationCode(); if (!string.IsNullOrEmpty(authenticationCode)) { if (XtraMessageBox.Show("HCMIS Already registered. Trying to register again may invalidate your current registration information. Proceed?", "Warning", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == System.Windows.Forms.DialogResult.No) { this.Close(); } } cboUserType.Properties.Items.AddRange(RegistrationHelper.UserTypesForFE()); }