RuleValueComparisonAttribute(String, DefaultContexts, ValueComparisonType, Object, String) Constructor

Initializes a new instance of the RuleValueComparisonAttribute class.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v23.2.dll

NuGet Package: DevExpress.Persistent.Base

Declaration

C#

public RuleValueComparisonAttribute(
    string id,
    DefaultContexts targetContexts,
    ValueComparisonType operatorType,
    object rightOperand,
    string messageTemplate
)

VB.NET

Public Sub New(
    id As String,
    targetContexts As DefaultContexts,
    operatorType As ValueComparisonType,
    rightOperand As Object,
    messageTemplate As String
)

Parameters

Name	Type	Description
id	String	A string value representing the current rule identifier. You can pass an empty value as the id parameter. An appropriate identifier will begenerated automatically, and set for the ID property of the Validation | Rules | Rule node in the Application Model.
targetContexts	DefaultContexts	A DefaultContexts enumeration value that specifies a context for checking the current rule. This value is set for the RuleBaseAttribute.TargetContextIDs property.
operatorType	ValueComparisonType	A ValueComparisonType enumeration value that represents the operator type to be used when comparing values.
rightOperand	Object	An object that represents the value to be compared with the target property’s value.
messageTemplate	String	A string value representing information defining the current rule. This value is set for the RuleBaseAttribute.CustomMessageTemplate property.

Remarks

If you are going to use a default message template for the rule, use a constructor without the messageTemplate parameter.