OpenXml Copy ImagesPart from one Document to another

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C#

XML

MS-Excel

Hey There,

currently I'm developing a Report Generator that reads an ExcelTemplate(.xlsx) and afterwards creates an new file and writes some Cells, Rows and Sheets with all the formatation and other stuff.
That all works great, but now they came up with another requirement:
If there are images in the template they should appear in the final report aswell.

My thought was I just have to copy the DrawingsPart from one file to another and set the relations correctly. But there occured some problems.

First: It seems to be Impossible to clone a whole Part. Am I right? Is there a Solution? (I found a quite dirty Workaround. I Open the Templatefile take the Part and do not close it anymore so the Part seems to be there. I do only use this way for testing purposes)

2nd If I want to change the relation of the imageparts inside of the DrawingsPart I get the Exception: A relationship can only be created between two parts in a package. So how can i get the required parts into my package?

I'm not sure if this is a good way but it's the only way i see at the moment.

btw, copying the whole template and filling it afterwards is no possible way for me because the template often contains fields that aren't used.

[Edit:]
I should tell you that my "dirty way" copys the images into the new File, i think the problem is anywhere at the relations.

Best Regads
Ray