AdvStringGrid loadfromcsv problem

When i right click the AdvStringGrid within Delphi, and select a csv file (tab seperated), the file is correctly imported.

Result: Cursist: Meijer RSJ Examennummer: 12345678 (Inkoopordernummer

But when i try this with code and use the same file, it's not importing correctly into the advstringgrid.

Result: Cursist:

CSV file with the information:
L "Cursist: Meijer RSJ Examennummer: 12345678 (Inkoopordernummer" 0000 0,00

The code i'm using:
AdvSG.Delimiter := #9;

What a'm i missing here? And why is it working with rightclick perfectly??

Kind regards

Robert Meijer