NewItemTypesAttribute Class

This attribute can decorate the collection properties (i.e., IList) of your selected object in order to control the types that will be allowedto be instantiated in the CollectionControl.

Syntax

Visual Basic
C#

'Declaration
 
<AttributeUsageAttribute(AttributeTargets.Property, 
   AllowMultiple=False, 
   Inherited=True)>
Public Class NewItemTypesAttribute 
   Inherits System.Attribute

'Usage
 
Dim instance As NewItemTypesAttribute

[AttributeUsage(AttributeTargets.Property, 
   AllowMultiple=false, 
   Inherited=true)]
public class NewItemTypesAttribute : System.Attribute

Remarks

This class allows you to specify the type of object that can be added to a collection property. When a CollectionEditorDialog is used to edit the property, these types are used to populate the new type combobox.

Example

The following snippet causes the new item ComboBox to contain the "Woman" and "Man" types that can be instantiated.

public class Person {...}
public class Man : Person {...}
public class Woman : Person {...}


public class Community
 {
   [NewItemTypes(typeof(Man), typeof(Woman))]
   public IList<Person> Members { get; set; }
 }

Inheritance Hierarchy

System.Object
System.Attribute
Xceed.Wpf.Toolkit.PropertyGrid.Attributes.NewItemTypesAttribute

Requirements

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

NewItemTypesAttribute Members
Xceed.Wpf.Toolkit.PropertyGrid.Attributes Namespace