virtual int GetSelectedItemsCount() const = 0;
virtual int GetSelections(wxDataViewItemArray& sel) const = 0; // returns all selected items in the native control
virtual bool IsSelected (wxDataViewItem const& item) const = 0; // checks if the passed item is selected in the native control
virtual int GetSelectedItemsCount() const = 0;
virtual int GetSelections(wxDataViewItemArray& sel) const = 0; // returns all selected items in the native control
virtual bool IsSelected (wxDataViewItem const& item) const = 0; // checks if the passed item is selected in the native control