RuleRequiredFieldAttribute() Constructor

Initializes a new instance of the RuleRequiredFieldAttribute class.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v24.1.dll

NuGet Package: DevExpress.Persistent.Base

Declaration

C#

public RuleRequiredFieldAttribute()

VB.NET

Public Sub New

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the RuleRequiredFieldAttribute() constructor.

Note

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C#

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/CS/DXSample.Module/TestObject.cs#L16

private string _Error;
[RuleRequiredField(ResultType = ValidationResultType.Error)]
public string Error {

xaf-separate-employees-data-in-different-departments-using-security-permissions/CS/MainDemo.Module/BusinessObjects/Employee.cs#L42

[Association]
[RuleRequiredField]
public Department Department {

XAF-How-to-Implement-CRUD-Operations-for-Non-Persistent-Objects-Stored-Remotely/CS/NonPersistentObjectsDemo.Module/BusinessObjects/AuxiliaryObjects.cs#L61

[DevExpress.ExpressApp.ConditionalAppearance.Appearance("", Enabled = false, Criteria = "Not IsNewObject(This)")]
[RuleRequiredField]
[DevExpress.ExpressApp.Data.Key]

VB.NET

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/VB/DXSample.Module/TestObject.vb#L18

<RuleRequiredField(ResultType:=ValidationResultType.Error)>
Public Property [Error] As String

xaf-separate-employees-data-in-different-departments-using-security-permissions/VB/MainDemo.Module/BusinessObjects/Employee.vb#L49

<Association>
<RuleRequiredField>
Public Property Department As Department

XAF-How-to-Implement-CRUD-Operations-for-Non-Persistent-Objects-Stored-Remotely/VB/NonPersistentObjectsDemo.Module/BusinessObjects/AuxiliaryObjects.vb#L85

<DevExpress.ExpressApp.ConditionalAppearance.Appearance("", Enabled := False, Criteria := "Not IsNewObject(This)")>
<RuleRequiredField>
<DevExpress.ExpressApp.Data.Key>