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 # Class Link<T, TUpdate, TDestroy, TOwnerDestroy\\>

 Last update: 09.03.2026 

<a id="VM_Managed_Link_4"></a>

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

This class is to represent the linked object relationship with its container object.

```csharp
public class Link<T, TUpdate, TDestroy, TOwnerDestroy> : ITypedLink<T>, ILink, IChangeReference where TUpdate : struct, ILinkContainerEvent.ILinkEventBuilder where TDestroy : struct, ILinkContainerEvent.ILinkEventBuilder where TOwnerDestroy : struct, ILinkContainerEvent.ILinkEventBuilder

```

#### Type Parameters

`T`

`TUpdate`

`TDestroy`

`TOwnerDestroy`

#### Inheritance

object ← [Link&lt;T, TUpdate, TDestroy, TOwnerDestroy&gt;](VM.Managed.Link-4.md)

#### Implements

[ITypedLink&lt;T&gt;](VM.Managed.ITypedLink-1.md), [ILink](VM.Managed.ILink.md), [IChangeReference](VM.Managed.IChangeReference.md)

#### 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_Link_4__ctor"></a> Link()

```csharp
protected Link()

```

### <a id="VM_Managed_Link_4__ctor_VM_Models_Pre_ILinkContainer_"></a> Link(ILinkContainer)

Initializes a new instance of the  class.

```csharp
public Link(ILinkContainer objParent)

```

#### Parameters

`objParent` ILinkContainer

The linked object's container object.

### <a id="VM_Managed_Link_4__ctor_VM_Models_Pre_ILinkContainer__0_"></a> Link(ILinkContainer, T)

Initializes a new instance of the  class.

```csharp
public Link(ILinkContainer objParent, T obj)

```

#### Parameters

`objParent` ILinkContainer

The linked object's container object.

`obj` T

The linked object.

### <a id="VM_Managed_Link_4__ctor_System_Runtime_Serialization_SerializationInfo_System_Runtime_Serialization_StreamingContext_"></a> Link(SerializationInfo, StreamingContext)

```csharp
protected Link(SerializationInfo info, StreamingContext context)

```

#### Parameters

`info` SerializationInfo

`context` StreamingContext

## Fields

### <a id="VM_Managed_Link_4_m_obj"></a> m\_obj

```csharp
protected ObjectEventCore m_obj

```

#### Field Value

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

### <a id="VM_Managed_Link_4_m_objLinkOwner"></a> m\_objLinkOwner

```csharp
protected ILinkContainer m_objLinkOwner

```

#### Field Value

ILinkContainer

## Properties

### <a id="VM_Managed_Link_4_FullName"></a> FullName

Gets the linked object's full name.

```csharp
public string FullName { get; }

```

#### Property Value

string

### <a id="VM_Managed_Link_4_IsReference"></a> IsReference

Gets a value indicating whether linked object is the reference.

```csharp
public bool IsReference { get; }

```

#### Property Value

bool

### <a id="VM_Managed_Link_4_LinkedObj"></a> LinkedObj

Gets the object container that has a relation with this.

```csharp
override sealed ILinkContainer LinkedObj { get; }

```

#### Property Value

ILinkContainer

### <a id="VM_Managed_Link_4_Name"></a> Name

Gets the linked object's name.

```csharp
public string Name { get; }

```

#### Property Value

string

### <a id="VM_Managed_Link_4_Object"></a> Object

Gets or sets the linked object.

```csharp
public virtual T Object { get; set; }

```

#### Property Value

T

### <a id="VM_Managed_Link_4_Prototype"></a> Prototype

Gets the linked object's prototype.

```csharp
public T Prototype { get; }

```

#### Property Value

T

## Methods

### <a id="VM_Managed_Link_4_ClearBeforeDeserialize"></a> ClearBeforeDeserialize()

Disconnect the link relation before deserialize.

```csharp
virtual void ClearBeforeDeserialize()

```

### <a id="VM_Managed_Link_4_ClearBeforeSwap"></a> ClearBeforeSwap()

Disconnect the link relation before undo/redo.

```csharp
virtual void ClearBeforeSwap()

```

### <a id="VM_Managed_Link_4_DestroyObject_System_Object_VM_Managed_LinkEventArgs_"></a> DestroyObject(object, LinkEventArgs)

Destroy this link

```csharp
virtual void DestroyObject(object objNotifier, LinkEventArgs arg)

```

#### Parameters

`objNotifier` object

The linked object.

`arg` [LinkEventArgs](VM.Managed.LinkEventArgs.md)

The  instance containing the event data.

### <a id="VM_Managed_Link_4_Dispose_System_Boolean_"></a> Dispose(bool)

```csharp
protected virtual void Dispose(bool A_0)

```

#### Parameters

`A_0` bool

### <a id="VM_Managed_Link_4_Dispose"></a> Dispose()

destroy a instance of the  class.

```csharp
public override sealed void Dispose()

```

### <a id="VM_Managed_Link_4_GetChilds_System_Collections_Generic_HashSet_VM_Models_Pre_ILinkContainer__"></a> GetChilds(HashSet&lt;ILinkContainer&gt;)

```csharp
virtual void GetChilds(HashSet<ILinkContainer> A_0)

```

#### Parameters

`A_0` HashSet&lt;ILinkContainer&gt;

### <a id="VM_Managed_Link_4_GetFirstDesignEntities"></a> GetFirstDesignEntities()

Get first design entities.

```csharp
virtual IEnumerable<IObject> GetFirstDesignEntities()

```

#### Returns

IEnumerable&lt;IObject&gt;

### <a id="VM_Managed_Link_4_GetObjectData_System_Runtime_Serialization_SerializationInfo_System_Runtime_Serialization_StreamingContext_"></a> GetObjectData(SerializationInfo, StreamingContext)

```csharp
virtual void GetObjectData(SerializationInfo info, StreamingContext __unnamed001)

```

#### Parameters

`info` SerializationInfo

`__unnamed001` StreamingContext

### <a id="VM_Managed_Link_4_RegisterEvent_System_Boolean_"></a> RegisterEvent(bool)

```csharp
protected virtual void RegisterEvent(bool bBackup)

```

#### Parameters

`bBackup` bool

### <a id="VM_Managed_Link_4_Reserve_VM_Managed_LinkEventArgs_"></a> Reserve(LinkEventArgs)

Reserve link.

```csharp
virtual bool Reserve(LinkEventArgs args)

```

#### Parameters

`args` [LinkEventArgs](VM.Managed.LinkEventArgs.md)

The event argument.

#### Returns

bool

true if succeess to reserve, otherwise false.

### <a id="VM_Managed_Link_4_SetModified"></a> SetModified()

set modified link for undo/redo

```csharp
virtual void SetModified()

```

### <a id="VM_Managed_Link_4_UnregisterEvent_System_Boolean_"></a> UnregisterEvent(bool)

```csharp
protected virtual void UnregisterEvent(bool bBackup)

```

#### Parameters

`bBackup` bool

## Operators

### <a id="VM_Managed_Link_4_op_Implicit_VM_Managed_Link__0__1__2__3___VM_Managed_Linker__0_"></a> implicit operator Linker&lt;T&gt;(Link&lt;T, TUpdate, TDestroy, TOwnerDestroy&gt;)

```csharp
public static implicit operator Linker<T>(Link<T, TUpdate, TDestroy, TOwnerDestroy> lnk)

```

#### Parameters

`lnk` [Link](VM.Managed.Link-4.md)&lt;T, TUpdate, TDestroy, TOwnerDestroy&gt;

#### Returns

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