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Normal Topic Subclassing BOX (Read 2455 times)
Aaron
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Subclassing BOX
Apr 21st, 2006 at 8:59pm
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How do you subclass the BOX class while still using the CreateBox function?
  
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Aaron
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Re: Subclassing BOX
Reply #1 - Apr 24th, 2006 at 12:57am
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There are several properties that I need to add to the BOX and  TABLE classes. Would it be safer to buy the code and add the few properties that I need or would it be doable to subclass each calss and add the properties. I fear that I wil run into issues of functions delivered with each class not working properly using the subclassing approach....
  
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Stoyo
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Re: Subclassing BOX
Reply #2 - Apr 24th, 2006 at 9:59am
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You can subclass a box and use the

flowchart.Add(new NodeClass())

to create objects of the new class.

However it is easier to attach the additional properties to the Box.Tag and Table.Tag, otherwise you will also have to subclass the FlowChart class in order to implement serialization.

Stoyan
  
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Aaron
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Re: Subclassing BOX
Reply #3 - Apr 24th, 2006 at 11:04am
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OK! So if you store in the tag a class rather than a single identification value, then you can not use your find node function, correct?
  
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Stoyo
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Re: Subclassing BOX
Reply #4 - Apr 24th, 2006 at 12:31pm
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You can still keep id values in the tag objects. Override the Equals method of the tag class if you need to use the flowchart's FindBox, or create your own FindBox version that checks the box.Tag.Id.
  
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