OpenFileDialog AllowMultipleSelections limit number of selections

Targets macOS
1

Hi,

Is it possible to limit the number of selectable files, say if you only want the user to be able to select two files, in OpenfileDialog with AllowMultipleSelections as true?

Thanks.

2

Nope, do a loop with post processing.
Check if count <> 2, and if it is, show “Invalid choice, you must select 2 files, try again”, and reopen the dialog for a new selection until an abortion of the operation or user selecting 2 valid files.

3

Ah I see. I was wondering if there was something I missed that could do that.

Well no worries. Thanks!

1 Like
4

Not so quick.

If you use for example NSOpenPanelMBS class for the dialog, you can have an event when the user changes selection.

Same for Windows with WinFileOpenDialogMBS class.

3 Likes
5

Ah cool.

No biggie. I was just wondering if XOJO had something built in.

Have to keep this in mind.

Thanks!