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.NET Development

.NET Framework 4

.NET Framework Class Library

System.ComponentModel Namespaces

System.ComponentModel

AddingNewEventArgs Class

AddingNewEventHandler Delegate

AmbientValueAttribute Class

ArrayConverter Class

AsyncCompletedEventArgs Class

AsyncCompletedEventHandler Delegate

AsyncOperation Class

AsyncOperationManager Class

AttributeCollection Class

AttributeProviderAttribute Class

BackgroundWorker Class

BaseNumberConverter Class

BindableAttribute Class

BindableSupport Enumeration

BindingDirection Enumeration

BindingList(T) Class

BooleanConverter Class

BrowsableAttribute Class

ByteConverter Class

CancelEventArgs Class

CancelEventHandler Delegate

CategoryAttribute Class

CharConverter Class

CollectionChangeAction Enumeration

CollectionChangeEventArgs Class

CollectionChangeEventHandler Delegate

CollectionConverter Class

ComplexBindingPropertiesAttribute Class

Component Class

ComponentCollection Class

ComponentConverter Class

ComponentEditor Class

ComponentResourceManager Class

Container Class

ContainerFilterService Class

CultureInfoConverter Class

CurrentChangedEventManager Class

CurrentChangingEventArgs Class

CurrentChangingEventHandler Delegate

CurrentChangingEventManager Class

CustomTypeDescriptor Class

DataObjectAttribute Class

DataObjectFieldAttribute Class

DataObjectMethodAttribute Class

DataObjectMethodType Enumeration

DateTimeConverter Class

DateTimeOffsetConverter Class

DecimalConverter Class

DefaultBindingPropertyAttribute Class

DefaultEventAttribute Class

DefaultPropertyAttribute Class

DefaultValueAttribute Class

DependencyPropertyDescriptor Class

DescriptionAttribute Class

DesignerAttribute Class

DesignerCategoryAttribute Class

DesignerProperties Class

DesignerSerializationVisibility Enumeration

DesignerSerializationVisibilityAttribute Class

DesignOnlyAttribute Class

DesignTimeVisibleAttribute Class

DisplayNameAttribute Class

DoubleConverter Class

DoWorkEventArgs Class

DoWorkEventHandler Delegate

EditorAttribute Class

EditorBrowsableAttribute Class

EditorBrowsableState Enumeration

EnumConverter Class

EventDescriptor Class

EventDescriptorCollection Class

EventHandlerList Class

ExpandableObjectConverter Class

ExtenderProvidedPropertyAttribute Class

GroupDescription Class

GuidConverter Class

HandledEventArgs Class

HandledEventHandler Delegate

IBindingList Interface

IBindingListView Interface

ICancelAddNew Interface

IChangeTracking Interface

ICollectionView Interface

ICollectionViewFactory Interface

IComNativeDescriptorHandler Interface

IComponent Interface

IContainer Interface

ICustomTypeDescriptor Interface

IDataErrorInfo Interface

IEditableCollectionView Interface

IEditableCollectionViewAddNewItem Interface

IEditableObject Interface

IExtenderProvider Interface

IIntellisenseBuilder Interface

IItemProperties Interface

IListSource Interface

ImmutableObjectAttribute Class

INestedContainer Interface

INestedSite Interface

InheritanceAttribute Class

InheritanceLevel Enumeration

InitializationEventAttribute Class

INotifyPropertyChanged Interface

INotifyPropertyChanging Interface

InstallerTypeAttribute Class

InstanceCreationEditor Class

Int16Converter Class

Int32Converter Class

Int64Converter Class

InvalidAsynchronousStateException Class

InvalidEnumArgumentException Class

IRaiseItemChangedEvents Interface

IRevertibleChangeTracking Interface

ISite Interface

ISupportInitialize Interface

ISupportInitializeNotification Interface

ISynchronizeInvoke Interface

ItemPropertyInfo Class

ITypeDescriptorContext Interface

ITypedList Interface

License Class

LicenseContext Class

LicenseException Class

LicenseManager Class

LicenseProvider Class

LicenseProviderAttribute Class

LicenseUsageMode Enumeration

LicFileLicenseProvider Class

ListBindableAttribute Class

ListChangedEventArgs Class

ListChangedEventHandler Delegate

ListChangedType Enumeration

ListSortDescription Class

ListSortDescriptionCollection Class

ListSortDirection Enumeration

LocalizableAttribute Class

LookupBindingPropertiesAttribute Class

MarshalByValueComponent Class

MaskedTextProvider Class

MaskedTextResultHint Enumeration

MemberDescriptor Class

MergablePropertyAttribute Class

MultilineStringConverter Class

NestedContainer Class

NewItemPlaceholderPosition Enumeration

NotifyParentPropertyAttribute Class

NullableConverter Class

ParenthesizePropertyNameAttribute Class

PasswordPropertyTextAttribute Class

ProgressChangedEventArgs Class

ProgressChangedEventHandler Delegate

PropertyChangedEventArgs Class

PropertyChangedEventHandler Delegate

PropertyChangedEventManager Class

PropertyChangingEventArgs Class

PropertyChangingEventHandler Delegate

PropertyDescriptor Class

PropertyDescriptorCollection Class

PropertyFilterAttribute Class

PropertyFilterOptions Enumeration

PropertyTabAttribute Class

PropertyTabScope Enumeration

ProvidePropertyAttribute Class

ReadOnlyAttribute Class

RecommendedAsConfigurableAttribute Class

ReferenceConverter Class

RefreshEventArgs Class

RefreshEventHandler Delegate

RefreshProperties Enumeration

RefreshPropertiesAttribute Class

RunInstallerAttribute Class

RunWorkerCompletedEventArgs Class

RunWorkerCompletedEventHandler Delegate

SByteConverter Class

SettingsBindableAttribute Class

SingleConverter Class

SortDescription Structure

SortDescriptionCollection Class

StringConverter Class

SyntaxCheck Class

TimeSpanConverter Class

ToolboxItemAttribute Class

ToolboxItemFilterAttribute Class

ToolboxItemFilterType Enumeration

TypeConverter Class

TypeConverter.SimplePropertyDescriptor Class

TypeConverter.StandardValuesCollection Class

TypeConverterAttribute Class

TypeDescriptionProvider Class

TypeDescriptionProviderAttribute Class

TypeDescriptor Class

TypeListConverter Class

UInt16Converter Class

UInt32Converter Class

UInt64Converter Class

WarningException Class

Win32Exception Class

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NewItemPlaceholderPosition Enumeration

.NET Framework 4

Specifies where the placeholder for a new item appears in the collection.

Namespace: System.ComponentModel
Assembly: WindowsBase (in WindowsBase.dll)

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public enum NewItemPlaceholderPosition

XAML Attribute Usage

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<object property="enumerationMemberName" .../>

	Member name	Description
	None	The collection does not use a new item placeholder. The position of items that are added depends on the underlying collection. Usually, they are added at the end of the collection.
	AtBeginning	The placeholder for a new item appears at the beginning of the collection. New items are at the beginning of the collection, after the new item placeholder.
	AtEnd	The placeholder for a new item appears at the end of the collection. New items are added at the end of the collection, before the new item placeholder.

Version Information

.NET Framework

Supported in: 4, 3.5 SP1, 3.0 SP2

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

System.ComponentModel Namespace

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