Hi,
Start learning from here: https://support.smartbear.com/testcomplete/docs/app-testing/desktop/net/addressing-objects.html
And then go here: https://support.smartbear.com/testcomplete/docs/app-testing/desktop/net/control-support.html
And finally: https://support.smartbear.com/testcomplete/docs/app-objects/specific-tasks/grids/index.html
I don't think the generic "how to use grids" support page is going to help here.
I have never heard of Magic xpa, but looking at the classname of the grid in the snapshot, it looks like a control specific to them. If they are supported as a 3rd party control type by TestComplete, I can't find any reference to it. The only thing I can find is an unresolved forum thread from 2 years ago ....
Given that grids can be complex when supported fully by TC, I can see trying to work with an unsupported type as not a lot of fun.
If it's based on a supported class (is there a way of finding that out?) you should be able to link it. But I have no idea if that will expose the methods and properties you're after.
Good luck!
