RuleRegularExpressionAttribute(String, DefaultContexts, String, String) Constructor

Initializes a new instance of the RuleRegularExpressionAttribute class.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v18.2.dll

Declaration

public RuleRegularExpressionAttribute(
    string id,
    DefaultContexts targetContexts,
    string pattern,
    string messageTemplate
)
Public Sub New(
    id As String,
    targetContexts As DefaultContexts,
    pattern As String,
    messageTemplate As String
)

Parameters

Type Name Description
String id

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.

DefaultContexts targetContexts

A DefaultContexts enumeration value that specifies a context for checking the current rule. This value is set for the RuleBaseAttribute.TargetContextIDs property.

String pattern

A string value that represented the regular expression that the property must match.

String messageTemplate

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.

See Also