Use polymorphism to differentiate behaviour of wxEnumProperty and wxEditEnumProperty.

Override OnSetValue(), StringToValue(), ValidateValue() methods instead of using RTTI in conditional statements to check if wxEditEnumProperty object is actually handled.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78403 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/propgrid/props.h

@@ -524,6 +524,13 @@ public:
 
     virtual ~wxEditEnumProperty();
 
+    void OnSetValue() wxOVERRIDE;
+    bool StringToValue(wxVariant& variant,
+                       const wxString& text,
+                       int argFlags = 0) const wxOVERRIDE;
+    bool ValidateValue(wxVariant& value,
+                       wxPGValidationInfo& validationInfo) const wxOVERRIDE;
+
 protected:
 };