An NSNumber object containing a Boolean value that determines if an additional item which represents nil is inserted into a matrix or pop-up menu before the items in the content array.
SDK
Framework
static let insertsNullPlaceholder: NSBindingstatic let allowsAn NSNumber object containing a Boolean value that determines if the binding allows editing when the value represents a multiple selection.
static let allowsAn NSNumber object containing a Boolean value that determines if the argument bindings allows passing argument values of nil.
static let alwaysA number containing a Boolean value that determines if validation and error alert panels displayed as a result of this binding are displayed as application modal alerts.
static let conditionallyAn NSNumber object containing a Boolean value that determines if the editable state of the user interface item is automatically configured based on the controller's selection.
static let conditionallyAn NSNumber object containing a Boolean value that determines if the enabled state of the user interface item is automatically configured based on the controller's selection.
static let conditionallyAn NSNumber object containing a Boolean value that determines if the hidden state of the user interface item is automatically configured based on the controller's selection.
static let contentA number that specifies the tag id of the popup menu item to replace with the content of the array.
static let continuouslyAn NSNumber object containing a Boolean value that determines whether the value of the binding is updated as edits are made to the user interface item or is updated only when the user interface item resigns as the responder.
static let createsAn NSNumber object containing a Boolean value that determines if a sort descriptor is created for a table column.
static let deletesAn NSNumber object containing a Boolean value that determines if an object is deleted from the managed context immediately upon being removed from a relationship.
static let displayAn NSString object containing a human readable string to be displayed for a predicate.
static let displayAn NSString object that specifies a format string used to construct the final value of a string.
static let handlesAn NSNumber object containing a Boolean value that determines if the content is treated as a compound value.
static let invokesAn NSNumber object containing a Boolean value that determines whether the specified selector is invoked with the array as the argument or is invoked repeatedly with each array item as an argument.
static let multipleAn object that is used as a placeholder when the key path of the bound controller returns the NSMultiple marker for a binding.
static let noAn object that is used as a placeholder when the key path of the bound controller returns the NSNo marker for a binding.
static let notAn object that is used as a placeholder when the key path of the bound controller returns the NSNot marker for a binding.
static let nullAn object that is used as a placeholder when the key path of the bound controller returns nil for a binding.
static let predicateAn NSString object containing the predicate pattern string for the predicate bindings. Use $value to refer to the value in the search field.
static let raisesAn NSNumber object containing a Boolean value that specifies if an exception is raised when the binding is bound to a key that is not applicable—for example when an object is not key-value coding compliant for a key.
static let selectorAn NSString object that specifies the method selector invoked by the target binding when the user interface item is clicked.
static let selectsAn NSNumber object containing a Boolean value that specifies if all the items in the array controller are selected when the content is set.
static let validatesAn NSNumber object containing a Boolean value that determines if the contents of the binding are validated immediately.
static let valueAn NSValue instance that is applied to the bound value.
static let valueThe value for this key is an identifier of a registered NSValue instance that is applied to the bound value.