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 # Interface IChangeReference

 Last update: 16.07.2025 

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

This interface is to represent the change reference.

```csharp
public interface IChangeReference

```

#### 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_)

## Methods

### ChangeReference(ObjectEventCore, ObjectEventCore)

Changes the reference.

```csharp
void ChangeReference(ObjectEventCore oecOld, ObjectEventCore oecNew)

```

#### Parameters

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

The old event core.

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

The new event core.