better variant support, fixes #11114

[wxWidgets.git] / samples / dataview / mymodels.h

diff --git a/samples/dataview/mymodels.h b/samples/dataview/mymodels.h
index 9a926ddc343f76001fc96d91199392e8491b0663..ba4397c1f19aa865c8df6e6e3744a0862d1d79ea 100644 (file)
--- a/samples/dataview/mymodels.h
+++ b/samples/dataview/mymodels.h
@@ -141,7 +141,7 @@ public:
     // override sorting to always sort branches ascendingly
 
     int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
-                 unsigned int column, bool ascending );
+                 unsigned int column, bool ascending ) const;
 
     // implementation of base class virtuals to define model