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The script has the following variables available: this, type, model, bind, old, locator.
this: MDAController
Detailed properties of the controller are available in NexJ Studio's code
completion by pressing CTRL-Space.
type:
The Type parameter can be one of the following symbols:
1. "changed" - when the instance attribute value changes.
2. "added" - when the instance is added to the collection.
3. "removed" - when an instance is removed from a collection.
model:
The model which fired the data event. The model is one of the Instance, Collection, of ActiveNode models.
bind:
The data bind to retrieve, or set values on the model.
The data bind supports the following methods:
(bind'getValue model) - the method returns the value from the given model
(bind'setValue model value) - the method sets a value on the given model.
(bind'canSetValue model) - the method returns true if it is updatable for the model. False otherwise.
locator:
It is an auxillary parameter for determining what kind of model is passed in.
The locator can be one of the following symbols.
index
- There is a current index change on a Collection Model. The model passed in is a Collection Model. The bind
returns an integer value corresponding to the current index.
collection
- There is a change of an active model on an ActiveNode Model. The model passed in is an ActiveNode Model. The bind
returns the active Collection Model.
selection
- There is a change of selection on an ActiveNode Model. The model passed in is an ActiveNode Model. The bind
returns the currently selected Instance Model.
attribute
- There is a change of an attribute value on an Instance Model. The model passed in is an Instance Model. The bind
returns the current value.
instance
- There is a change in the state of a Collection Model. The model passed in is a Collection Model.
union
- There is a change in the index in the Union Model. This is a system feature.
language : schemeLanguageType
The scripting language for this element.
The language defaults to scheme.| Valid values based on“languageType”. | |
|---|---|
| scheme |
scheme scripting language |