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ValueExpressionAttributeBase Class

Represents a base attribute class for C# expressions that when evaluated will specify a new value for a property.
Inheritance Hierarchy

Namespace: GSF.ComponentModel
Assembly: GSF.Core (in GSF.Core.dll) Version: 2.4.181-beta
Syntax
[AttributeUsageAttribute(AttributeTargets.Property)]
public abstract class ValueExpressionAttributeBase : Attribute, 
	IValueExpressionAttribute
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The ValueExpressionAttributeBase type exposes the following members.

Constructors
 NameDescription
Protected methodValueExpressionAttributeBase Creates a new ValueExpressionAttributeBase
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Properties
 NameDescription
Public propertyCached Gets or sets value that determines if value should be cached after first evaluation. Defaults to false.
Public propertyEvaluationOrder Gets or sets the numeric evaluation order for this expression. Defaults to zero.
Public propertyExpression Gets C# expression that will evaluate to the desired value.
Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute.
(Inherited from Attribute)
Public propertyTypeRegistry Gets or sets any TypeRegistry to use if the attribute Expression needs to be pre-parsed.
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Methods
 NameDescription
Public methodEqualsReturns a value that indicates whether this instance is equal to a specified object.
(Inherited from Attribute)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object)
Public methodGetExpressionUpdateValue Gets the modeled property based value used to update the Expression.
Public methodGetHashCodeReturns the hash code for this instance.
(Inherited from Attribute)
Public methodGetPropertyUpdateValue Gets the Expression based value used to update a modeled property.
Public methodGetTypeGets the Type of the current instance.
(Inherited from Object)
Public methodIsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.
(Inherited from Attribute)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object.
(Inherited from Attribute)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object.
(Inherited from Object)
Public methodToStringReturns a string that represents the current object.
(Inherited from Object)
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Extension Methods
 NameDescription
Public Extension MethodGetEnumValueOrDefault Gets the enumeration constant for value, if defined in the enumeration, or a default value.
(Defined by EnumExtensions)
Public Extension MethodGetEnumValueOrDefaultT Gets the enumeration constant for this value, if defined in the enumeration, or a default value.
(Defined by EnumExtensions)
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See Also