I have noticed a problem when using the DateTimePicker on a web page that is displayed in the .NET WebControl control. The problem I am seeing is the first time I open the calendar and I press one of the arrows on the top to navigate to the next/previous month the calendar immediately closes. If I open the calendar again the next/previous arrow buttons work correctly. This problem only occurs in the WebControl control that I am using. It does not occur in IE or any other web browser that I have tried.
Per your documentation, I added these two lines:
window.MSPointerEvent = null;
window.PointerEvent = null;
This did fix another issue I was having (a button event wasn't firing) but it did not fix the DateTimePicker issue.
Does anyone know what might be causing this and if there is a work around?