Can I have multiple selections in wxGenericDirCtrl? Topic is solved

[Nintendofreak88]

Is there some way to have multiple selections in wxGenericDirCtrl? I've tried setting the wxTreeCtrl's style like this:

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myDirCtrl->GetTreeCtrl()->SetWindowStyle(wxMULTIPLE);

But, my program crashes as soon as it starts up. Any ideas why?

[Nintendofreak88]

My question hasn't been answered in quit a while... Does anyone have an idea? Should I submit it as a bug?

[wxuser]

Is there some way to have multiple selections in wxGenericDirCtrl?

I am not sure either, but here are few comments.

regarding your code

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myDirCtrl->GetTreeCtrl()->SetWindowStyle(wxMULTIPLE);

See window styles for wxTreeCtrl its wxTR_MULTIPLE for multiple selection. but i dont know if this change would help.

One more way would be to have a look at how wxGenericDirCtrl gets the info from wxTreeCtrl and try to fix any problems there.

hope this helps

PS: If you solve this issue, please do post back with the fix so that others will know when they search

[DavidHart]

(In case that doesn't help:)

I'm sure it's possible. In 2.4.2, it wasn't possible to get close enough to the treectrl even by subclassing, so I ended up copying most of the wxGenericDirCtrl code into my class. It was then easy to add:
treeStyle |= wxTR_MULTIPLE; treeStyle |= wxTR_EXTENDED;
before the tree was created with the style treeStyle.

In 2.6.2, there is a new member function, wxGenericDirCtrl::CreateTreeCtrl(), that allows you to recreate the tree as you wish. It's protected so you'll have to subclass.

David

[Nintendofreak88]

See window styles for wxTreeCtrl its wxTR_MULTIPLE for multiple selection. but i dont know if this change would help.

Sorry, that was just a typo in my code above, I am using wxTR_MULTIPLE.

I'm sure it's possible. In 2.4.2, it wasn't possible to get close enough to the treectrl even by subclassing, so I ended up copying most of the wxGenericDirCtrl code into my class. It was then easy to add:
treeStyle |= wxTR_MULTIPLE; treeStyle |= wxTR_EXTENDED;
before the tree was created with the style treeStyle.

In 2.6.2, there is a new member function, wxGenericDirCtrl::CreateTreeCtrl(), that allows you to recreate the tree as you wish. It's protected so you'll have to subclass.

Thanks, it worked perfectly!