public async void rep()
{
string fecha = DateTime.Now.ToString();
string mot = mm.Text.ToString();
try
{
UseManager manager = new UseManager();
manager.Reporte(amtrr.Text.ToString(), mot, fecha, obs.Text.ToString(), lbl_Remitente.Text.ToString());
await DisplayAlert("Reporte Generado", "Reporte Enviado", "Aceptar");
lbl_Remitente.Text = " ";
obs.Text = "";
motivo.SelectedIndex = -1;
}
catch (Exception e1) { }
}