.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET 5.0+

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

Initializes a new instance of the RuleValueComparisonAttribute class.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v21.2.dll

Declaration

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

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.

targetContextIDs String

A string value that specifies a list of identifiers of the contexts when the current rule should be checked. 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.

See Also