private void BoutonEditContact_Click(object sender, RoutedEventArgs e) { BLL.BLL BLL_EDIT_CONTACT = new BLL.BLL(); if (BLL_EDIT_CONTACT.editContact(editContactFirtsName.Text, editContactSecondName.Text, editContactEmail.Text, editContactPhone.Text, editContactAge.Text)) { editContactFirtsName.Text = ""; editContactSecondName.Text = ""; editContactEmail.Text = ""; editContactPhone.Text = ""; editContactAge.Text = ""; messageEditContact.Content = "Contact edited"; } else { messageEditContact.Content = "Contact not found"; } }