## On this page # Class Link<T, TUpdate, TDestroy, TOwnerDestroy\\> Last update: 16.07.2025 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 : ITypedLink, 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](https://learn.microsoft.com/dotnet/api/system.object) ← [Link<T, TUpdate, TDestroy, TOwnerDestroy>](VM.Managed.Link-4.md) #### Implements [ITypedLink<T>](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<T>(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_) ## Constructors ### Link() ```csharp protected Link() ``` ### Link(ILinkContainer) Initializes a new instance of the class. ```csharp public Link(ILinkContainer objParent) ``` #### Parameters `objParent` ILinkContainer The linked object's container object. ### 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. ### Link(SerializationInfo, StreamingContext) ```csharp protected Link(SerializationInfo info, StreamingContext context) ``` #### Parameters `info` [SerializationInfo](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.serializationinfo) `context` [StreamingContext](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.streamingcontext) ## Fields ### m\_obj ```csharp protected ObjectEventCore m_obj ``` #### Field Value [ObjectEventCore](VM.Managed.ObjectEventCore.md) ### m\_objLinkOwner ```csharp protected ILinkContainer m_objLinkOwner ``` #### Field Value ILinkContainer ## Properties ### FullName Gets the linked object's full name. ```csharp public string FullName { get; } ``` #### Property Value [string](https://learn.microsoft.com/dotnet/api/system.string) ### IsReference Gets a value indicating whether linked object is the reference. ```csharp public bool IsReference { get; } ``` #### Property Value [bool](https://learn.microsoft.com/dotnet/api/system.boolean) ### LinkedObj Gets the object container that has a relation with this. ```csharp override sealed ILinkContainer LinkedObj { get; } ``` #### Property Value ILinkContainer ### Name Gets the linked object's name. ```csharp public string Name { get; } ``` #### Property Value [string](https://learn.microsoft.com/dotnet/api/system.string) ### Object Gets or sets the linked object. ```csharp public virtual T Object { get; set; } ``` #### Property Value T ### Prototype Gets the linked object's prototype. ```csharp public T Prototype { get; } ``` #### Property Value T ## Methods ### ClearBeforeDeserialize() Disconnect the link relation before deserialize. ```csharp virtual void ClearBeforeDeserialize() ``` ### ClearBeforeSwap() Disconnect the link relation before undo/redo. ```csharp virtual void ClearBeforeSwap() ``` ### DestroyObject(object, LinkEventArgs) Destroy this link ```csharp virtual void DestroyObject(object objNotifier, LinkEventArgs arg) ``` #### Parameters `objNotifier` [object](https://learn.microsoft.com/dotnet/api/system.object) The linked object. `arg` [LinkEventArgs](VM.Managed.LinkEventArgs.md) The instance containing the event data. ### Dispose(bool) ```csharp protected virtual void Dispose(bool A_0) ``` #### Parameters `A_0` [bool](https://learn.microsoft.com/dotnet/api/system.boolean) ### Dispose() destroy a instance of the class. ```csharp public override sealed void Dispose() ``` ### GetChilds(HashSet<ILinkContainer>) ```csharp virtual void GetChilds(HashSet A_0) ``` #### Parameters `A_0` [HashSet](https://learn.microsoft.com/dotnet/api/system.collections.generic.hashset-1)<ILinkContainer> ### GetFirstDesignEntities() Get first design entities. ```csharp virtual IEnumerable GetFirstDesignEntities() ``` #### Returns [IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)<IObject> ### GetObjectData(SerializationInfo, StreamingContext) ```csharp virtual void GetObjectData(SerializationInfo info, StreamingContext __unnamed001) ``` #### Parameters `info` [SerializationInfo](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.serializationinfo) `__unnamed001` [StreamingContext](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.streamingcontext) ### RegisterEvent(bool) ```csharp protected virtual void RegisterEvent(bool bBackup) ``` #### Parameters `bBackup` [bool](https://learn.microsoft.com/dotnet/api/system.boolean) ### Reserve(LinkEventArgs) Reserve link. ```csharp virtual bool Reserve(LinkEventArgs args) ``` #### Parameters `args` [LinkEventArgs](VM.Managed.LinkEventArgs.md) The event argument. #### Returns [bool](https://learn.microsoft.com/dotnet/api/system.boolean) true if succeess to reserve, otherwise false. ### SetModified() set modified link for undo/redo ```csharp virtual void SetModified() ``` ### UnregisterEvent(bool) ```csharp protected virtual void UnregisterEvent(bool bBackup) ``` #### Parameters `bBackup` [bool](https://learn.microsoft.com/dotnet/api/system.boolean) ## Operators ### implicit operator Linker<T>(Link<T, TUpdate, TDestroy, TOwnerDestroy>) ```csharp public static implicit operator Linker(Link lnk) ``` #### Parameters `lnk` [Link](VM.Managed.Link-4.md)<T, TUpdate, TDestroy, TOwnerDestroy> #### Returns [Linker](VM.Managed.Linker-1.md)<T>