public EditarContaVM()
{
User = new MercadoModel();
//PARA PREENCHER PLACEHOLDER
var cnpj = Xamarin.Forms.Application.Current.Properties["Cnpj_user"].ToString();
User = conexao.ObterUsuarioMercado(cnpj);
oldSenha = User.senha;
AlterarCommand = new Command(UpdateConta);
ExcluirContaCommand = new Command(ExcluirConta);
}
