Eliminated lingering validation failure message on the status bar. Added wxPropertyGrid virtual member functions DoHidePropertyError() and GetStatusBar().

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64796 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/propgrid/propgrid.h

@@ -1601,12 +1601,38 @@ public:
         m_validationInfo.m_failureMessage.clear();
     }
 
-    /** Override in derived class to display error messages in custom manner
+    /**
+        Override in derived class to display error messages in custom manner
         (these message usually only result from validation failure).
+
+        @remarks If you implement this, then you also need to implement
+                 DoHidePropertyError() - possibly to do nothing, if error
+                 does not need hiding (e.g. it was logged or shown in a
+                 message box).
+
+        @see DoHidePropertyError()
     */
     virtual void DoShowPropertyError( wxPGProperty* property,
                                       const wxString& msg );
 
+    /**
+        Override in derived class to hide an error displayed by
+        DoShowPropertyError().
+
+        @see DoShowPropertyError()
+    */
+    virtual void DoHidePropertyError( wxPGProperty* property );
+
+#if wxUSE_STATUSBAR
+    /**
+        Return wxStatusBar that is used by this wxPropertyGrid. You can
+        reimplement this member function in derived class to override
+        the default behavior of using the top-level wxFrame's status
+        bar, if any.
+    */
+    virtual wxStatusBar* GetStatusBar();
+#endif
+
     /** Override to customize property validation failure behavior.
         @param invalidValue
             Value which failed in validation.