Use this attribute to mark a property in custom object as Primary Key. This attribute is required for Hierarchical custom objects databinding.

Object Model

Syntax

Visual Basic (Declaration)
<AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly Or _ AttributeTargets.Module Or _ AttributeTargets.Class Or _ AttributeTargets.Struct Or _ AttributeTargets.Enum Or _ AttributeTargets.Constructor Or _ AttributeTargets.Method Or _ AttributeTargets.Property Or _ AttributeTargets.Field Or _ AttributeTargets.Event Or _ AttributeTargets.Interface Or _ AttributeTargets.Parameter Or _ AttributeTargets.Delegate Or _ AttributeTargets.ReturnValue Or _ AttributeTargets.GenericParameter Or _ AttributeTargets.All, AllowMultiple=False, Inherited=True)> Public Class PrimaryKeyAttribute Inherits System.Attribute

Visual Basic (Declaration)

<AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly Or  _
    AttributeTargets.Module Or  _
    AttributeTargets.Class Or  _
    AttributeTargets.Struct Or  _
    AttributeTargets.Enum Or  _
    AttributeTargets.Constructor Or  _
    AttributeTargets.Method Or  _
    AttributeTargets.Property Or  _
    AttributeTargets.Field Or  _
    AttributeTargets.Event Or  _
    AttributeTargets.Interface Or  _
    AttributeTargets.Parameter Or  _
    AttributeTargets.Delegate Or  _
    AttributeTargets.ReturnValue Or  _
    AttributeTargets.GenericParameter Or  _
    AttributeTargets.All, 
   AllowMultiple=False, 
   Inherited=True)>
Public Class PrimaryKeyAttribute 
   Inherits System.Attribute

Visual Basic (Usage)	Copy Code
Dim instance As PrimaryKeyAttribute

C#
[AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly \| AttributeTargets.Module \| AttributeTargets.Class \| AttributeTargets.Struct \| AttributeTargets.Enum \| AttributeTargets.Constructor \| AttributeTargets.Method \| AttributeTargets.Property \| AttributeTargets.Field \| AttributeTargets.Event \| AttributeTargets.Interface \| AttributeTargets.Parameter \| AttributeTargets.Delegate \| AttributeTargets.ReturnValue \| AttributeTargets.GenericParameter \| AttributeTargets.All, AllowMultiple=false, Inherited=true)] public class PrimaryKeyAttribute : System.Attribute

[AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly | 
    AttributeTargets.Module | 
    AttributeTargets.Class | 
    AttributeTargets.Struct | 
    AttributeTargets.Enum | 
    AttributeTargets.Constructor | 
    AttributeTargets.Method | 
    AttributeTargets.Property | 
    AttributeTargets.Field | 
    AttributeTargets.Event | 
    AttributeTargets.Interface | 
    AttributeTargets.Parameter | 
    AttributeTargets.Delegate | 
    AttributeTargets.ReturnValue | 
    AttributeTargets.GenericParameter | 
    AttributeTargets.All, 
   AllowMultiple=false, 
   Inherited=true)]
public class PrimaryKeyAttribute : System.Attribute

Delphi
public class PrimaryKeyAttribute = class(System.Attribute)

JScript
AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly \| AttributeTargets.Module \| AttributeTargets.Class \| AttributeTargets.Struct \| AttributeTargets.Enum \| AttributeTargets.Constructor \| AttributeTargets.Method \| AttributeTargets.Property \| AttributeTargets.Field \| AttributeTargets.Event \| AttributeTargets.Interface \| AttributeTargets.Parameter \| AttributeTargets.Delegate \| AttributeTargets.ReturnValue \| AttributeTargets.GenericParameter \| AttributeTargets.All, AllowMultiple=, Inherited=) public class PrimaryKeyAttribute extends System.Attribute

JScript

AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly | 
    AttributeTargets.Module | 
    AttributeTargets.Class | 
    AttributeTargets.Struct | 
    AttributeTargets.Enum | 
    AttributeTargets.Constructor | 
    AttributeTargets.Method | 
    AttributeTargets.Property | 
    AttributeTargets.Field | 
    AttributeTargets.Event | 
    AttributeTargets.Interface | 
    AttributeTargets.Parameter | 
    AttributeTargets.Delegate | 
    AttributeTargets.ReturnValue | 
    AttributeTargets.GenericParameter | 
    AttributeTargets.All, 
   AllowMultiple=, 
   Inherited=)
public class PrimaryKeyAttribute extends System.Attribute

Managed Extensions for C++
[AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly \| AttributeTargets.Module \| AttributeTargets.Class \| AttributeTargets.Struct \| AttributeTargets.Enum \| AttributeTargets.Constructor \| AttributeTargets.Method \| AttributeTargets.Property \| AttributeTargets.Field \| AttributeTargets.Event \| AttributeTargets.Interface \| AttributeTargets.Parameter \| AttributeTargets.Delegate \| AttributeTargets.ReturnValue \| AttributeTargets.GenericParameter \| AttributeTargets.All, AllowMultiple=false, Inherited=true)] public __gc class PrimaryKeyAttribute : public System.Attribute

Managed Extensions for C++

[AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly | 
    AttributeTargets.Module | 
    AttributeTargets.Class | 
    AttributeTargets.Struct | 
    AttributeTargets.Enum | 
    AttributeTargets.Constructor | 
    AttributeTargets.Method | 
    AttributeTargets.Property | 
    AttributeTargets.Field | 
    AttributeTargets.Event | 
    AttributeTargets.Interface | 
    AttributeTargets.Parameter | 
    AttributeTargets.Delegate | 
    AttributeTargets.ReturnValue | 
    AttributeTargets.GenericParameter | 
    AttributeTargets.All, 
   AllowMultiple=false, 
   Inherited=true)]
public __gc class PrimaryKeyAttribute : public System.Attribute

C++/CLI
[AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly \| AttributeTargets.Module \| AttributeTargets.Class \| AttributeTargets.Struct \| AttributeTargets.Enum \| AttributeTargets.Constructor \| AttributeTargets.Method \| AttributeTargets.Property \| AttributeTargets.Field \| AttributeTargets.Event \| AttributeTargets.Interface \| AttributeTargets.Parameter \| AttributeTargets.Delegate \| AttributeTargets.ReturnValue \| AttributeTargets.GenericParameter \| AttributeTargets.All, AllowMultiple=false, Inherited=true)] public ref class PrimaryKeyAttribute : public System.Attribute

C++/CLI

[AttributeUsageAttribute(ValidOn=AttributeTargets.Assembly | 
    AttributeTargets.Module | 
    AttributeTargets.Class | 
    AttributeTargets.Struct | 
    AttributeTargets.Enum | 
    AttributeTargets.Constructor | 
    AttributeTargets.Method | 
    AttributeTargets.Property | 
    AttributeTargets.Field | 
    AttributeTargets.Event | 
    AttributeTargets.Interface | 
    AttributeTargets.Parameter | 
    AttributeTargets.Delegate | 
    AttributeTargets.ReturnValue | 
    AttributeTargets.GenericParameter | 
    AttributeTargets.All, 
   AllowMultiple=false, 
   Inherited=true)]
public ref class PrimaryKeyAttribute : public System.Attribute

Inheritance Hierarchy

System.Object
System.Attribute
ISNet.WebUI.WebGrid.PrimaryKeyAttribute

Requirements

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Object Model

Syntax

Inheritance Hierarchy

Requirements

See Also

Reference

Intersoft WebGrid Documentation
PrimaryKeyAttribute Class
Members See Also Send Feedback