How to fill data into field by Method in AX

Hii Master,

I have a problem I want add field item category in my viewTable when fill data to field by Method.

#view of my method

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view of field properties

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Error when open view

pastedimage1499932361119v2.png

Is there anyone can help & give me solution for this problem

Thanks

Regards,

Try synchronize and show us the total error/info. If possible, show the code in that method.