I just made some more tests with ASPOSE.PowerPoint v3.5.7.0
1/ About "\t" In fact "\t" works, I have done more test and when I try to insert a "\t" into a portion, it works. pres.Slides[0].Shapes[0].TextFrame.Paragraphs[0].Portions[0].Text = "# \t # \t #"; > OK
2/ About "\r" & "\n" & "\r\n" Was perfectly working with ASPOSE.PowerPoint v2.3.5 pres.Slides[0].Shapes[0].TextFrame.Paragraphs[0].Portions[0].Text = "# \n #"; > KO
In debug or Release it provides an exception. It's meaning that for each time I have a "\r\n" I need to insert a new paragraphs, hard work. aspose.PowerPoint cannot do it itself ???
3/ Could you told me HOW I can insert a new line without a new paragraph ? You know like "SHIFT + ENTER" used in powerpoint document ????