Execute followed by ExecuteWithRegions results in InvalidCastException

Aspose.Words Product Family
1

When calling MailMerge.Execute followed by MailMerge.ExecuteWithRegions I get an exception.

System.InvalidCastException: Unable to cast object of type 'Aspose.Words.Fields.FieldSeparator' to type 'Aspose.Words.Fields.FieldStart'.

The solution until a fix is supplied is to save the result from first Execute to a stream. Create a second Document from the stream and call ExecuteWithRegions on the second document.
/Uffe

2

Hello

Thanks for your request. Could you please attach your template document and simple code here for testing? I will check the issue on my side and provide you more information.
Best regards,

3

Sample code to reproduce problem.

static void Main(string[] args)
{
    var doc = new Document(@"test.template.docx");
    doc.MailMerge.Execute(new string[]
    {
        "Anvandare_Namn"
    }, new object[]
    {
        "username"
    });
    var ds = new DataSet();
    ds.ReadXml(@"datatable.xml");
    var dataTable = ds.Tables[0];
    doc.MailMerge.RemoveEmptyParagraphs = true;
    doc.MailMerge.ExecuteWithRegions(dataTable);
    // Exception. Unable to cast object of type 'Aspose.Words.Fields.FieldSeparator' to type 'Aspose.Words.Fields.FieldStart'.
}

Update: Aspose.Words 9.3 is used.
/Uffe

4

Hello

Thank you for additional information. I managed to reproduce the problem on my side. You will be notified as soon as it is resolved.
It seems there is something wrong with Styles of merge fields. As a workaround you can try clearing styles of merge fields inside region or you can modify the TOC field. As a temporary workaround, you can try using the following code of TOC field and the problem disappears: TOC \o “1-1” \h \z \t
Best regards,

5

This looks like the exact problem i’m having. Hope you boys find a solution soon…

6

Hello Abe,

Thanks for your request. I just answered to you here:
https://forum.aspose.com/t/62632
Best regards,

7

A fix for the issue(s) you’ve reported (filed as 19051) will be released in the next release at the end of this month. You will be notified.

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(1)

8

The issues you have found earlier (filed as WORDSNET-3755) have been fixed in this .NET update and in this Java update.

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