Hi Shaolin,
At
present there is no support to change the row count and row height on demand
and we have logged this as Feature
Request.
We have created a feature request for “ Support to change row count and
row height dynamically”. This feature can be tracked through our Feature
Management
http://www.syncfusion.com/support/directtrac/features/WPF-12257
You will be able to communicate with us regarding the open features at
any time using the “Contact” option.
Regards,
Jayapradha