CalculatedDataAttribute Class

Represents data attribute which gets its value by evaluating an expression

Inheritance Hierarchy

SystemObject
Aloe.SystemFrameworks.DomainCalculatedDataAttribute

Namespace: Aloe.SystemFrameworks.Domain
Assembly: Aloe.SystemFrameworks.Domain (in Aloe.SystemFrameworks.Domain.dll) Version: 20.1.3.5

Syntax

public class CalculatedDataAttribute : IDataAttribute

Public Class CalculatedDataAttribute
	Implements IDataAttribute

public ref class CalculatedDataAttribute : IDataAttribute

type CalculatedDataAttribute =  
    class
        interface IDataAttribute
    end

The CalculatedDataAttribute type exposes the following members.

Constructors

	Name	Description
	CalculatedDataAttribute	Initializes a new instance of the CalculatedDataAttribute class.

Properties

	Name	Description
	BaseInfo	Gets the base information.
	Expression	Gets the calculated attribute expression.
	IsBlob	Gets a value indicating whether this attribute data is BLOB.
	IsComplexType	Gets a value indicating whether this instance is a complex type.
	IsPersistent	Gets a value indicating whether this attribute is persistent. Only persistent attributes support track changes.
	LocalizedName	Gets the name of the attribute in the current UI culture.
	LocalizedNameFunc	Gets the localized name function.
	Name	Gets the name of the data attribute
	PrimitiveValueType	Gets the primitive type code. Used in public APIs to represent a complex value as a primitive value. For example for Quantity and Amount attributes the primitive value is of Decimal type.
	ReadOnly	Is the Property read-only
	SupportsGet	Gets a value indicating whether the attribute supports getting a value.
	SupportsSet	Gets a value indicating whether the attribute supports setting a value.
	ValueType	Returns the Type of the data, that this attribute stores

Methods

	Name	Description
	FilterBy	Not supported.
	GetComplexTypeAccessor	Gets the complex type value accessor or null if the attribute does not support it. Complex type values are frequently used in Entity Data Models.
	GetDisplayValueAccessor	Gets the display text accessor or null if the attribute does not support it. The display value is localized in the current thread culture and is suitable for displaying and modification by end users.
	GetInvariantStringAccessor	Gets the text value accessor or null if the attribute does not support it. The text value is used when importing from or exporting to text files or streams.
	GetPrimitiveValueAccessor	Gets the primitive value accessor or null if the attribute does not support it. Used in public APIs to represent a complex value as a primitive value.
	GetUntypedValue	Gets the value of the data attribute for the specified domain object
	OnDataAttributeChanged	Raises the DataAttributeChanged event.
	Prepare	Performs attribute-specific work to prepare the attribute. For example calculated attributes must be compiled. Called by the system after the attribute is added to the repository.
	SetUntypedValue	Sets the value of the data attribute for the specified entity object
	ToString	Returns a String that represents this instance. (Overrides ObjectToString.)

Events

	Name	Description
	DataAttributeChanged	Never triggered for CalculatedDataAttribute.

Extension Methods

	Name	Description
	GetUntypedValueAccessor	Gets the untyped value accessor. (Defined by IDataAttributeExtensions.)
	IsNull	Determines whether value of the attribute of the specified object is null. (Defined by IDataAttributeExtensions.)