i have millions of old dxf files every file contains a 2d part of a Product in that part is a marking (partnumber, projekt, typ of part) this 3 lines of Text i like to delete and add my own text to make it understandable for our new cutter machine. how to add the new text i know. i just dont understand how to pick that old Text and delete it.
1. Document.Load (OK)
2. delete all TEXT (???) (not MText)
3. add new MText (OK)
4. then save under same filename same directory (OK)
but i get a sytax error because of directory or filename
Fehler
System.IO.IOException: "Die Syntax für den Dateinamen, Verzeichnisnamen oder die Datenträgerbezeichnung ist falsch. : 'C:\Users\Me\Desktop\dxfmergetest\autoCAD2018\001typ07sik1.dxf, C:\Users\Me\Desktop\dxfmergetest\autoCAD2018\001typ07sik10.dxf, ......
it looks good but result is still an error
iam a newbee to c# hope to find someone who is able to explain it to me.