makeUniqueLinkKeyFunction property

(dynamic Function(GraphLinksModel, Object)?) makeUniqueLinkKeyFunction

Gets or sets a function that returns a unique id number or string for a link data object. This function is called by #makeLinkDataKeyUnique when a link data object is added to the model, either as part of a new #linkDataArray or by a call to #addLinkData, to make sure the value of #getKeyForLinkData is unique within the model. However it will not be called when #linkKeyProperty is the default value, an empty string.

The value may be null in order to cause #makeLinkDataKeyUnique behave in the standard manner. (The default value is null.) You may want to supply a function here in order to make sure all of the automatically generated keys are in a particular format. Setting this property after setting #linkDataArray has no real effect until there is a call to #addLinkData.

If a link data object is already in the model and you want to change its key value, call #setKeyForLinkData with a new and unique key.

Implementation

_i2.dynamic Function(
  _i3.GraphLinksModel,
  _i2.Object,
)? get makeUniqueLinkKeyFunction => (
      _i3.GraphLinksModel p0,
      _i2.Object p1,
    ) =>
        _i4.callMethod(
          _i4.getProperty(
            this,
            'makeUniqueLinkKeyFunction',
          ),
          r'call',
          [
            this,
            p0,
            p1,
          ],
        );

void makeUniqueLinkKeyFunction=(dynamic value(GraphLinksModel, Object)?)

Implementation

set makeUniqueLinkKeyFunction(
    _i2.dynamic Function(
      _i3.GraphLinksModel,
      _i2.Object,
    )? value) {
  _i4.setProperty(
    this,
    'makeUniqueLinkKeyFunction',
    value == null ? _i5.undefined : _i4.allowInterop(value),
  );
}