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Xceed Toolkit Plus for WPF v5.1 Documentation
Xceed.Wpf.Toolkit Assembly / Xceed.Wpf.Toolkit.PropertyGrid.Attributes Namespace / NewItemTypesAttribute Class
Example


In This Topic
    NewItemTypesAttribute Class
    In This Topic
    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
    '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

    Public Constructors
     NameDescription
    Public ConstructorNewItemTypesAttribute ConstructorOverloaded.   
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    Public Properties
     NameDescription
    Public PropertyTypeId (Inherited from System.Attribute)
    Public PropertyTypes  
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    Public Methods
     NameDescription
    Public MethodEquals (Inherited from System.Attribute)
    Public MethodGetHashCode (Inherited from System.Attribute)
    Public MethodIsDefaultAttribute (Inherited from System.Attribute)
    Public MethodMatch (Inherited from System.Attribute)
    Top
    Supported Frameworks

    .NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

    .NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

    See Also

    Reference

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

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