isprop for custom classes

Why isprop doesn't work for custom classes in Matlab versions earlier than 2011a? Even help shows that this feature works only for COM object. So how to check is property a property of my class? sorry for my english...

Answer 1

[Daniel Shub]

I don't know why TMW only implemented isprop for custom classes in r2011a, but it is pretty easy to work around. To test if a string y is a property of an object obj:

x = metaclass(obj)
tf = ismember(y, {x.PropertyList.Name});

This doesn't do any error checking on obj or y. If you have r2011a you can see the copyrighted source code of TMW's implementation of isprop.

 edit isprop

[Dmitry Borovoy]

sorry, was offline