Compare DOC Files using C# .NET Code | Avoid System.InvalidCastException

Aspose.Words Product Family
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1

Hi,

we get an InvalidCastException when comparing two documents.
Additional information (roughly translated):

Object of type “Aspose.Words.Tables.Table” cannot be converted to “Aspose.Words.Paragraph”.

Test code:

            var oldDocument = new Document(@"S:\tmp\revcompare\old.doc");
            var newDocument = new Document(@"S:\tmp\revcompare\new.doc");

            oldDocument.Compare(newDocument, "author", DateTime.UtcNow);

Documents are attached. Thanks for your help.
documents.zip (39.1 KB)

2

@Serraniel,

You are right; the current version of Aspose.Words for .NET throws following exception upon comparing these particular Word DOC files:

System.InvalidCastException
HResult=0x80004002
Message=Unable to cast object of type 'Aspose.Words.Tables.Table' to type 'Aspose.Words.Paragraph'.
Source=Aspose.Words

For the sake of correction, we have logged this problem in our issue tracking system. The ID of this issue is WORDSNET-22668. We will further look into the details of this problem and will keep you updated here on the status of correction. We apologize for your inconvenience.

3

The issues you have found earlier (filed as WORDSNET-22668) have been fixed in this Aspose.Words for .NET 21.9 update.