how to extract json object in .net (business central to .net)

First you can de-serialize it and then pick the actual property you wish to display.

I had been done it. thanku sir

To the best of my knowledge, there is no way to do it.

You will still need to deserialize entire json, create an object out of it and then access the property that you want.

May be you will do all of this in one line, however, for the computer, I don't believe there is a way to go around it.