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

Initializes a new instance of the RuleValueComparisonAttribute class.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v24.2.dll

NuGet Package: DevExpress.Persistent.Base

Declaration

C#

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

VB.NET

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

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	String	The string representation of an expression whose 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.
mode	ParametersMode	A ParametersMode enumeration value specifying how the rightOperand parameter value is treated.

Remarks

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