Query 1: incompatibility with DatePicker.
SfTextInputLayout control doesn’t support Datepicker as
input view. We have already logged a feature request for this requirement, and
it can be tracked through our feedback portal below.
https://www.syncfusion.com/feedback/25576
Please cast your vote to make it count. We will prioritize
the features every release based on the demands, and since we don’t have an
immediate plan to implement this feature and it will be included in any of our
upcoming releases.
If you have any more specifications/suggestions to the
feature request, you can add them as a comment in the portal.
Query 2: Border is not stretched when ErrorText is longer
than HintText or Text itself.
This is the default behavior of
SfTextInputLayout, we would like to inform you that the Hint and Text
properties are displayed inside the border. So, the border size is directly
depend on it. But the purpose of the ErrorText is to display the error messages
only when the provided input is failed to meet the expected, once the user
provided input meets the requirement, we collapsed it. Also, it will be
displayed bottom of the text input layout border (Not inside the border as like
Hint/Text). So, we didn’t consider the ErrorText for rendering the Border.