Hi,
can you send me the exact line you are typing in?
For instance I can see in your initial description wdcontext which is incorrect, it has to be wdContext (case sensitive).
Another hint:
I also suggest to use the Code Insight feature.
If you enter wdContext and you press the dot (".") then press CTRL+Space then it opens up the possible methods you can type after the dot.
Regards,
Ervin