Could you please clarify what do you mean?
If you are wondering about the lifetime of the variables in your C# test code, it is following regular rules for .Net.
If you are wondering about UI objects of the tested application, then the flow is like this:
-- Tested application creates its UI objects as it is implemented by developers;
-- TestLeft's runtime engine monitors these objects and maintains its internal objects tree;
-- When your test code searches for an UI object, the reference to the object from the above objects tree is returned;
-- When the tested application destroys the referenced UI object, TestLeft's runtime engine invalidates it in the objects tree and this is (automatically) reflected in your test code.
https://support.smartbear.com/testleft/docs/using/creating-tests/searching-for-objects.html and https://support.smartbear.com/testleft/docs/using/creating-tests/object-identification/understanding... might help further.
/Alex [Community Champion]
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