Forums

by Anonymous >> Fri, 6 Feb 2004 14:58:48 GMT

hi
i've been having a some problems with the error 'updating method called for constant value'. The values i am trying to update are not constants. My programs is set up to create blanket invoices for customers. So the form has a transient proxy dictionary of proxyCustomerItems. I can create them fine and then when i try to update the price (which is an attribute that's part of the proxy class, not the actual saleItem reference) it says i'm trying to update a constant. Can you only set transient properties once? Thanks for your help.

Les

by allistar >> Sun, 8 Feb 2004 8:37:16 GMT

What this means is that you are doing something like this:

doSomething(anObject: MyClass);begin

anObject.setName("someString");
end;

where MyClass::setName is an "updating" method.

This would cause the "updating method called for constant value" error you see. To fix it you would do this:

doSomething(anObject: MyClass input);begin

anObject.setName("someString");
end;

Regards,
Allistar.
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Allistar Melville
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