Tree views - Best design practices

Diez B. Roggisch deets at nospam.web.de
Thu Jan 8 17:52:21 CET 2009


Filip Gruszczyński wrote:

>>>>> class Element(object):
>>        operations = "Element operations"
>>
>>
>>>>> class Group(object):
>>        operations = "Group operations"
>>
>>
>>>>> e = Element()
>>>>> g = Group()
>>>>>
>>>>> e.operations
>> 'Element operations'
>>>>> g.operations
>> 'Group operations'
> 
> But this is the same as asking for a class, except for having to write
> a method giving some form of a class name and then basing on this
> classname display operations. I know this solution, but this is what I
> would like to evade.
> 

It is *not* the same - the code that knows about the operations is not in
the treeview-logic anymore, but local to the class that can actually deal
with the operations.

Diez



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