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I am trying to use the same button to choose multiple files that are in different directories. I was able to return the paths chosen when the button is clicked once. But when the button is clicked the second time, I tried to concat the paths to the existing one but it didn't work.
Here is a simple example of what I'm trying to do:
Hi,
I am trying to use the same button to choose multiple files that are in different directories. I was able to return the paths chosen when the button is clicked once. But when the button is clicked the second time, I tried to concat the paths to the existing one but it didn't work.
Here is a simple example of what I'm trying to do:
The first time I clicked the select button, r1.lst contains the two paths I selected:
However, the second time, r1.lst becomes NULL again and the r1.lst contains only the new paths I selected:
How do I get all the files path selected in one list?
Thank you,
Cen
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