Updated documentation to acknowledge the fact that properties can have identical labels, and that they must have non-empty name that is unique under parent

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55604 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/propgrid/property.h

@@ -1165,6 +1165,12 @@ public:
         m_helpString = helpString;
     }
 
+    /** Sets property's label.
+
+        @remarks
+        - Properties under same parent may have same labels. However,
+        property names must still remain unique.
+    */
     void SetLabel( const wxString& label ) { m_label = label; }
 
     inline void SetName( const wxString& newName );

interface/wx/propgrid/propgridiface.h

@@ -765,9 +765,10 @@ public:
     }
 
     /** Sets label of a property.
+
         @remarks
-        This is the only way to set property's name. There is not
-        wxPGProperty::SetLabel() method.
+        - Properties under same parent may have same labels. However,
+        property names must still remain unique.
     */
     void SetPropertyLabel( wxPGPropArg id, const wxString& newproplabel );