public virtual async Task OnAccept()
{
Exception error = null;
try {
StartBusy();
error = await Validate();
if (error == null)
{
var task = DoAccept();
if (task != null)
{
await task;
}
}
}
catch (Exception exc) {
Debug.ExceptionCaught(exc);
error = exc;
}
finally {
EndBusy();
}
if (error != null)
{
await Alerts.ErrorAlert(error.Message);
return;
}
await Navigator.PopPage();
}