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 # Class DirectionLink

 Last update: 09.03.2026 

<a id="VM_Managed_DirectionLink"></a>

Namespace: [VM.Managed](VM.Managed.md)  
Assembly: VMAppCore.dll

This class is to represent information of direction through Design Frame.

```csharp
public class DirectionLink : DirectionBase, IObservableObject, IDisposableObject, ILinkable, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, ILinkContainerEvent, IVerifiable, IHasReplaceableEntity, IReservable

```

#### Inheritance

object ← ObservableObject ← [LinkableBase](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/LinkableBase.cs) ← [LinkContainer](VM.Managed.LinkContainer.md) ← [DirectionBase](VM.Managed.DirectionBase.md) ← [DirectionLink](VM.Managed.DirectionLink.md)

#### Implements

IObservableObject, IDisposableObject, ILinkable, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, [ILinkContainerEvent](VM.Managed.ILinkContainerEvent.md), [IVerifiable](VM.Managed.IVerifiable.md), IHasReplaceableEntity, IReservable

#### Inherited Members

[DirectionBase.m\_bReverse](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_m_bReverse), [DirectionBase.IsParametric(Primitive.enRefType)](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_IsParametric_VM_Managed_Primitive_enRefType_), [DirectionBase.IsParametric(string)](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_IsParametric_System_String_), [DirectionBase.ReadXml(XmlReader)](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_ReadXml_System_Xml_XmlReader_), [DirectionBase.WriteXml(XmlWriter)](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_WriteXml_System_Xml_XmlWriter_), [DirectionBase.GetSchema()](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_GetSchema), [DirectionBase.HasReplaceableEntity(IObjectBase)](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_HasReplaceableEntity_VM_Models_Pre_IObjectBase_), [DirectionBase.ReplaceEntity(IObjectBase, IObjectBase)](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_ReplaceEntity_VM_Models_Pre_IObjectBase_VM_Models_Pre_IObjectBase_), [DirectionBase.Reverse](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_Reverse), [DirectionBase.IsParameterized](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_IsParameterized), [DirectionBase.Value](VM.Managed.DirectionBase.md#VM_Managed_DirectionBase_Value), [LinkContainer.SetModified()](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_SetModified), [LinkContainer.raise\_OnUpdating(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_raise_OnUpdating_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.raise\_OnUpdate(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_raise_OnUpdate_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.raise\_OnDestroying(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_raise_OnDestroying_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.raise\_OnDestroy(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_raise_OnDestroy_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.raise\_OnAdded(object, AddToDocEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_raise_OnAdded_System_Object_VM_Managed_AddToDocEventArgs_), [LinkContainer.raise\_OnRemoved(object, RemoveFromDocEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_raise_OnRemoved_System_Object_VM_Managed_RemoveFromDocEventArgs_), [LinkContainer.GetTargetListForUpdate()](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_GetTargetListForUpdate), [LinkContainer.SkipUpdateObjectImpl()](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_SkipUpdateObjectImpl), [LinkContainer.Initialize(Unit.ConvertFactor)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_Initialize_VM_Unit_ConvertFactor_), [LinkContainer.SetFlagWhenXMLFile(string, bool)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_SetFlagWhenXMLFile_System_String_System_Boolean_), [LinkContainer.IsSerializableEvent(Delegate)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_IsSerializableEvent_System_Delegate_), [LinkContainer.CustomGetObjectData(SerializationInfo, StreamingContext)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_CustomGetObjectData_System_Runtime_Serialization_SerializationInfo_System_Runtime_Serialization_StreamingContext_), [LinkContainer.GetSerializedData(SerializationInfo, StreamingContext)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_GetSerializedData_System_Runtime_Serialization_SerializationInfo_System_Runtime_Serialization_StreamingContext_), [LinkContainer.LinkRequestUpdating(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_LinkRequestUpdating_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.LinkRequestUpdate(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_LinkRequestUpdate_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.LinkRequestDestroying(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_LinkRequestDestroying_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.LinkRequestDestroy(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_LinkRequestDestroy_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.LinkAddedToDocument(object, AddToDocEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_LinkAddedToDocument_System_Object_VM_Managed_AddToDocEventArgs_), [LinkContainer.LinkRemovedFromDocument(object, RemoveFromDocEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_LinkRemovedFromDocument_System_Object_VM_Managed_RemoveFromDocEventArgs_), [LinkContainer.OnLinkReserved(ILink, object, EventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnLinkReserved_VM_Managed_ILink_System_Object_System_EventArgs_), [LinkContainer.CanBeDestroy(object)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_CanBeDestroy_System_Object_), [LinkContainer.DisposeManagedResources()](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_DisposeManagedResources), [LinkContainer.SetContainer(IOwned, bool)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_SetContainer_VM_Models_Pre_IOwned_System_Boolean_), [LinkContainer.OnChildUpdated(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnChildUpdated_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.OnContainerDestroy(object, LinkEventArgs)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnContainerDestroy_System_Object_VM_Managed_LinkEventArgs_), [LinkContainer.OnDeserialization(object)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnDeserialization_System_Object_), [LinkContainer.Verify(VerifiedResult)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_Verify_VM_Managed_VerifiedResult_), [LinkContainer.GetCopy(object)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_GetCopy_System_Object_), [LinkContainer.Dispose(bool)](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_Dispose_System_Boolean_), [LinkContainer.ClearChildInfoBeforeDeserialize](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_ClearChildInfoBeforeDeserialize), [LinkContainer.Container](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_Container), [LinkContainer.Owner](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_Owner), [LinkContainer.Document](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_Document), [LinkContainer.ID](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_ID), [LinkContainer.IsChildExternable](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_IsChildExternable), [LinkContainer.IsExternable](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_IsExternable), [LinkContainer.OnRemoved](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnRemoved), [LinkContainer.OnAdded](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnAdded), [LinkContainer.OnDestroy](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnDestroy), [LinkContainer.OnDestroying](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnDestroying), [LinkContainer.OnUpdate](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnUpdate), [LinkContainer.OnUpdating](VM.Managed.LinkContainer.md#VM_Managed_LinkContainer_OnUpdating), [LinkableBase.OnDeserialization(object)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/LinkableBase.cs), ObservableObject.Dispose(), ObservableObject.RaisePropertyChanged(string), ObservableObject.RaisePropertyChanged(string, object, object), ObservableObject.Dispose(bool), ObservableObject.DisposeManagedResources(), ObservableObject.DisposeUnmanagedResources(), ObservableObject.IsDisposed, ObservableObject.TryDisposing, ObservableObject.Disposed, ObservableObject.Disposing, ObservableObject.PropertyChanged

#### Extension Methods

[LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects&lt;T&gt;(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Constructors

### <a id="VM_Managed_DirectionLink__ctor_VM_Managed_IDirectionContainer_System_String_"></a> DirectionLink(IDirectionContainer, string)

Initializes a new instance of the  class.

```csharp
public DirectionLink(IDirectionContainer pDirectionContainer, string strDirectionType)

```

#### Parameters

`pDirectionContainer` [IDirectionContainer](VM.Managed.IDirectionContainer.md)

The data of direction of Design Frame.

`strDirectionType` string

Direction type(x,y,z).

### <a id="VM_Managed_DirectionLink__ctor"></a> DirectionLink()

Initializes a new instance of the  class.

```csharp
public DirectionLink()

```

## Fields

### <a id="VM_Managed_DirectionLink_m_linkDirectionContainer"></a> m\_linkDirectionContainer

```csharp
protected Link<IDirectionContainer, LinkContainer.Update, LinkContainer.Destroy, LinkContainer.None> m_linkDirectionContainer

```

#### Field Value

[Link](VM.Managed.Link-4.md)&lt;[IDirectionContainer](VM.Managed.IDirectionContainer.md), [LinkContainer](VM.Managed.LinkContainer.md).[Update](VM.Managed.LinkContainer.Update.md), [LinkContainer](VM.Managed.LinkContainer.md).[Destroy](VM.Managed.LinkContainer.Destroy.md), [LinkContainer](VM.Managed.LinkContainer.md).[None](VM.Managed.LinkContainer.None.md)&gt;

### <a id="VM_Managed_DirectionLink_m_strDirectionType"></a> m\_strDirectionType

```csharp
protected string m_strDirectionType

```

#### Field Value

string

## Properties

### <a id="VM_Managed_DirectionLink_DirectionContainer"></a> DirectionContainer

Gets or sets the object of design frame.

```csharp
public IDirectionContainer DirectionContainer { get; set; }

```

#### Property Value

[IDirectionContainer](VM.Managed.IDirectionContainer.md)

### <a id="VM_Managed_DirectionLink_DirectionType"></a> DirectionType

Gets the direction type of design frame.

```csharp
public string DirectionType { get; }

```

#### Property Value

string

### <a id="VM_Managed_DirectionLink_IsParameterized"></a> IsParameterized

Gets the parametric.

```csharp
public override bool IsParameterized { get; }

```

#### Property Value

bool

### <a id="VM_Managed_DirectionLink_Position"></a> Position

Gets the position of design frame.

```csharp
public VectorBase Position { get; }

```

#### Property Value

[VectorBase](VM.Managed.VectorBase.md)

### <a id="VM_Managed_DirectionLink_Value"></a> Value

Gets the VectorBase(x, y, z).

```csharp
public override VectorBase Value { get; }

```

#### Property Value

[VectorBase](VM.Managed.VectorBase.md)

### <a id="VM_Managed_DirectionLink__DirectionContainer"></a> \_DirectionContainer

Gets or sets the object of design frame.

```csharp
public Linker<IDirectionContainer> _DirectionContainer { get; set; }

```

#### Property Value

[Linker](VM.Managed.Linker-1.md)&lt;[IDirectionContainer](VM.Managed.IDirectionContainer.md)&gt;

## Methods

### <a id="VM_Managed_DirectionLink_GetSchema"></a> GetSchema()

This method is reserved and should not be used. When implementing the IXmlSerializable interface, you should return nullNothingnullptra null reference (Nothing in Visual Basic) (Nothing in Visual Basic) from this method, and instead, if specifying a custom schema is required, apply the XmlSchemaProviderAttribute to the class.

```csharp
public override XmlSchema GetSchema()

```

#### Returns

XmlSchema

An  that describes the XML representation of the object that is produced by the  method and consumed by the  method.

### <a id="VM_Managed_DirectionLink_HasReplaceableEntity_VM_Models_Pre_IObjectBase_"></a> HasReplaceableEntity(IObjectBase)

Gets a value indicating whether this instance has replacable entity.

```csharp
public override bool HasReplaceableEntity(IObjectBase oldObject)

```

#### Parameters

`oldObject` IObjectBase

The old object

#### Returns

bool

if this instance has replacable entity, the result is true.

### <a id="VM_Managed_DirectionLink_ReadXml_System_Xml_XmlReader_"></a> ReadXml(XmlReader)

Generates an object from its XML representation.

```csharp
public override void ReadXml(XmlReader reader)

```

#### Parameters

`reader` XmlReader

The XmlReader stream from which the object is deserialized.

### <a id="VM_Managed_DirectionLink_ReplaceEntity_VM_Models_Pre_IObjectBase_VM_Models_Pre_IObjectBase_"></a> ReplaceEntity(IObjectBase, IObjectBase)

Replace Entity

```csharp
public override bool ReplaceEntity(IObjectBase oldObject, IObjectBase newObject)

```

#### Parameters

`oldObject` IObjectBase

The old object

`newObject` IObjectBase

The new object

#### Returns

bool

if success, the result is true.

### <a id="VM_Managed_DirectionLink_WriteXml_System_Xml_XmlWriter_"></a> WriteXml(XmlWriter)

Converts an object into its XML representation.

```csharp
public override void WriteXml(XmlWriter writer)

```

#### Parameters

`writer` XmlWriter

The XmlWriter stream to which the object is serialized.