Xamarin.Forms on Windows Phone 8.1

Hi all,

I'm using Xamarin.Forms 1.2.3 to develop an application.

It works well on iOS and Android. On Windows Phone I have 2 small issues like below:

1. ListView: when there is more thant 10 rows, a scrollbar appears on the right of the list view (number 1 in the first picture) , it makes the layout broken, labels inside cells don't align with the header anymore (number 2 in the first picture). Does anyone know how to get rid of the scrollbar?

2. I try to create a DateTimePicker by using a button, click on a button will show DatePicker dialog then when user selects a date I show the TimePicker (call TimePicker.Focus). Again, It works well on iOS and Android, but on Windows Phone the TimePicker doesnot show until user taps one more time on the button. Does anyone know how to fix this problem?

Thanks a ton.