Robert Roebling 8ddda15ba5 Implement and document wxDataViewTreeCtrl::IsContainer(), use it in the sample to not add items to non-containers ...

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62630 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

2009-11-13 14:14:44 +00:00

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