RuleExpressionCondition Class (System.Workflow.Activities.Rules)

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.NET Framework Class Library

RuleExpressionCondition Class

Defines the condition definition behind a RuleConditionReference. This class cannot be inherited.

Inheritance Hierarchy

System.Object
System.Workflow.Activities.Rules.RuleCondition
System.Workflow.Activities.Rules.RuleExpressionCondition

Namespace: System.Workflow.Activities.Rules
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)

Syntax

Visual Basic

<SerializableAttribute> _
Public NotInheritable Class RuleExpressionCondition _
	Inherits RuleCondition

[SerializableAttribute]
public sealed class RuleExpressionCondition : RuleCondition

Visual C++

[SerializableAttribute]
public ref class RuleExpressionCondition sealed : public RuleCondition

[<Sealed>]
[<SerializableAttribute>]
type RuleExpressionCondition =  
    class
        inherit RuleCondition
    end

The RuleExpressionCondition type exposes the following members.

Constructors

	Name	Description
	RuleExpressionCondition()	Initializes a new instance of the RuleExpressionCondition class.
	RuleExpressionCondition(CodeExpression)	Initializes a new instance of the RuleExpressionCondition class by using a specified code expression.
	RuleExpressionCondition(String)	Initializes a new instance of the RuleExpressionCondition class by using a specified name.
	RuleExpressionCondition(String, CodeExpression)	Initializes a new instance of the RuleExpressionCondition class by using a specified name and code expression.

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Properties

	Name	Description
	Expression	Gets or sets the expression condition to evaluate.
	Name	Gets or sets the name of the condition to evaluate. (Overrides RuleCondition.Name.)

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Methods

	Name	Description
	Clone	Creates a deep copy of the current RuleExpressionCondition. (Overrides RuleCondition.Clone().)
	Equals	Determines whether two object instances are equal. (Overrides Object.Equals(Object).)
	Evaluate	Evaluates the expression. (Overrides RuleCondition.Evaluate(RuleExecution).)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetDependencies	Gets the dependencies for the RuleExpressionCondition. (Overrides RuleCondition.GetDependencies(RuleValidation).)
	GetHashCode	Returns the hash code for this instance. (Overrides Object.GetHashCode().)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnRuntimeInitialized	Called when all properties have been given values. (Overrides RuleCondition.OnRuntimeInitialized().)
	ToString	Returns the string value of the expression condition. (Overrides Object.ToString().)
	Validate	Verifies that the expression is configured correctly and has no errors. (Overrides RuleCondition.Validate(RuleValidation).)

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Remarks

The RuleExpressionCondition class defines the base conditions evaluated when a RuleSet is executed.

This condition type is modeled with CodeDom types. For more information about CodeDom types, see CodeDOM Types Supported by Windows Workflow Foundation.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Reference

System.Workflow.Activities.Rules Namespace