Greetings - I'm building a DSL and I've got a question. Once in the DSLs designer, for a specific property on an instance of a Domain Class, I would the property to provide a *filtered* selection list of other instances of Domain Classes.

For example, if I have a instance of a Domain Class named "Attribute" and it has two properties, one is "Name" and the other is "Type". I might set the "Name" property to "HomePhone" and the "Type" property to "PhoneNumber". I want the value "PhoneNumber" to point to some other instance of a Domain Class named "PhoneNumber".

Basically, I want user to be able to create a diagram that models their business objects, and have the ability to use there business objects as types to select from.

Any ideas? (apologies if my explanation is confusing)

Thanks,

Jordan T.

Jordan

DomainProperties are designed to have value types (int, bool, enum, etc) or string. If you want to refer to a DomainClass, use a reference relationship. This will generate a property in the code, and if the multiplicity is 1 will show up in the property grid of your target designer.

-- Steve Cook

Hi Jordan,

Generally, you always model class-values properties by creating a reference relationship with multiplicity 0..1 or 1..1 between the source and target.

So you might create AttributeHasType bwetween Attribute and Type.

With a multiplicity of max 1, you'll automagically get a property in the property grid of yoru attribute that allows you to pick from the elements of type "Type" in your model.