.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET Core 3.0+

RuleUniqueValueAttribute(String, String, String) Constructor

Initializes a new instance of the RuleUniqueValueAttribute class.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v19.2.dll

Declaration

public RuleUniqueValueAttribute(
    string id,
    string targetContextIDs,
    string messageTemplate
)
Public Sub New(
    id As String,
    targetContextIDs As String,
    messageTemplate As String
)
public RuleUniqueValueAttribute(
    string id,
    string targetContextIDs,
    string messageTemplate
)
Public Sub New(
    id As String,
    targetContextIDs As String,
    messageTemplate As String
)
public RuleUniqueValueAttribute(
    string id,
    string targetContextIDs,
    string messageTemplate
)
Public Sub New(
    id As String,
    targetContextIDs As String,
    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.

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.

messageTemplate String

A string value representing information defining the current rule. This value is set for the RuleBaseAttribute.CustomMessageTemplate property.

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.

messageTemplate String

A string value representing information defining the current rule. This value is set for the RuleBaseAttribute.CustomMessageTemplate property.

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.

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.

See Also