The reason of System.NullReferenceE

The reason of System.NullReferenceException is thrown in Table.ToString() is in accessing to Table.IsNested property
inside this method. Customer uses the ExtractContent() method, which uses Node.Clone().
When node cloned, it becames parentless, so call to Table.FirstNonMarkupParentNode in Table.IsNested throws an exception.
We can do resilience in Table.IsNested property, checking it's value is not null and returning false otherwise.

Результаты (русский) 2:

The reason of System. NullReferenceException is thrown in Table. ToString () is in accessing to Table IsNested property.
inside this method. The Customer uses the ExtractContent () method, which uses the Clone Node..
When node cloned, it becames parentless, the call to FirstNonMarkupParentNode in Table Table: IsNested throws an exception..
We can do resilience in Table IsNested property. checking it's value is not null and returning false otherwise.

Результаты (русский) 3:

The reason of System.NullReferenсeExсeptiоn is thrоwn in Table.tostring=License Expiration() is in accessing to table.IsNested property
inside this method. Customer uses the ExtrасtCоntent() method, which uses node.Clone( ) .
when node сlоned, it beсаmes pаrentless, so call to table.FirstNоnMаrkupPаrentNоde in Table.IsNested thrоws an exception.
we can do resilienсe in Table.IsNested property,Checking it's value is not null and see more false otherwise.