Comment 3 for bug 893343

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David Gomes (davidgomes) wrote :

I checked Marlin code, found nothing (I found where it's done, but it's not very clear).

So, I sent an email to the Vala Mailing list asking how to do this, waiting for response.

We have to get the column that is on the top right of the Tree View and use tree_view.set_expander_column( top_right_column).

The issue is getting the top right column.