在aspose.words.Document.getMailMerge（）。execute之后更新mailmerge字段

Question

this is my first question here so bear with me please.

I have an aspose.words.Document object with mailmerge fields. I need to change one of the fields more than one time. As far as I know once you change a MailMerge field with Document.getMailMerge().execute , the field becomes plain text and stop being a field. Thats because when I use these lines of code again with different values, it doesn't work for a second time.

doc.getMailMerge().execute(
                new String[] { "title", "name", "address", "telephone", "fax", "date" },

                new Object[] { "Some title", "some name", "some address", "some telephone", "some fax", "some date" });

I have two workarounds for this problem that I'm facing:

One is that I create one more Document object and put that object through all the phases with my original Document object except for the doc.MailMerge().execute phase. However the phases before MailMerge phase cost much time (for big documents) which can be measured with minutes, so I dont want to double that time. I used a performance tool for it.

Second is that right before using MailMerge() for the first time, I use Document.deepClone() on the original document to create a second independant object. With this I don't need to add those time costly code blocks for a second time, but I also haven't calculated or searched deeply for performance of this deepClone() method. I'll add that info after I dig into that.

Long story short what I want to ask is, can I update a MailMerge field after I change it. If not so, is there a better workaround for this?

Answer 1

As far as I know once you change a MailMerge field with Document.getMailMerge().execute, the field becomes plain text and stop being a field.

Yes, you are right. The fields are filled with data after executing mail merge.

can I update a MailMerge field after I change it. If not so, is there a better workaround for this

If you want to execute mail merge on same document multiple times, you can either prepare the document again before merging, or create a clone. However, it is faster to prepare the document once and than clone it before each merge.

Please take a look at How to Produce Multiple Documents during Mail Merge .

Disclosure: I am a developer at Aspose.