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Property Sheet validator [message #879536]

Thu, 31 May 2012 11:40

Sarath Rachakonda

Messages: 16
Registered: May 2012

Junior Member

Hi everyone,

I have Few Nodes defined and placed in the Palette. Each Node has an attribute "Name"
which can be set in the property sheet.

I have a rule that in the diagram there shouldn't be multiple Nodes with same "Name". I have to check this validation that "Name" is not same for any 2 Nodes.

I couldn't find a place in the GMF generated code to set the validator. Can someone help me on this. In the PropertySection code i have set descriptor as EMFCompositeSourcePropertyDescriptor and set validator on that but "isValid" method is not invoked when i change value in the property sheet

Thanks for your help

Thanks,
Sarath

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Re: Property Sheet validator [message #879962 is a reply to message #879536]

Fri, 01 June 2012 07:56

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

there are two nice ways to do this.

1) http://wiki.eclipse.org/Graphical_Modeling_Framework/Tutorial/Part_2#Validation
2) http://www.eclipse.org/epsilon/doc/evl/(Take a look at the screencast at the bottom)

The advantage of 2) is that it validates your model independent from the editor you use for editing.

Ralph

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