Telerik ui sidedrawer is not access in code behind by id ( undefined) or not working in nativescript-core

[ganeshhfs]

Hi,
I am using following ui with Telerik side-drawer in one of page as given in attachment file with ui and code in function.
when i tap on button in given ui then i am trying to get drawer id from page but it showing undefined.I have use side drawer on my app pages but i am not able use side drawer because of this issue.I am using native script - core in my application so that i using java script.

Can you please provide solution for this or shared sample application with me.
Please provide the step use drawer of telerik in app or any other required plugin needed.

sidedrawer.txt

Thanks and Regards,
Ganesh Madane