nativescript-dom in typescript not working

[bismert]

Hi everyone, I am a newbie in to the nativescript framework I wanna tryout some stuffs then I stumbled upon the this plugin now I dont know how to use it with typescript

TypeError: page.getElementById is not a function
Here is error I get.
Attached is my code screen shot

I dont know what I am missing kindly help

[spstratis]

Since you're trying to do this in the navigatingTo event I don't think your page object has been fully initialized. From what I read the page is initialized until late in the view cycle. I find if I reference page in the on loaded event I'm able to get around this issue.