## On this page

  

 

 # Class ObjectBaseAddon

 Last update: 09.03.2026 

<a id="VM_Managed_History_ObjectBaseAddon"></a>

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

```csharp
public abstract class ObjectBaseAddon : HistoryManagerAddon

```

#### Inheritance

object ← [HistoryManagerAddon](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs) ← [ObjectBaseAddon](VM.Managed.History.ObjectBaseAddon.md)

#### Derived

[AddToSubEntityAddon](VM.Managed.History.AddToSubEntityAddon.md), [HiddenDocumentAddon](VM.Managed.History.HiddenDocumentAddon.md), [NavigatorAddon](VM.Managed.History.NavigatorAddon.md), [RefreshSubEntityAddon](VM.Managed.History.RefreshSubEntityAddon.md), [UpdateSimulationConfigurationAddon](VM.Managed.History.UpdateSimulationConfigurationAddon.md)

#### Inherited Members

[HistoryManagerAddon.BeforeUndo(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.AfterUndo(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.BeforeRedo(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.AfterRedo(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.BeforeRollback(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.AfterRollback(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.BeforeRecord(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.AfterRecord(object, HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.Register(HistoryManager)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.ClearMarkCollection(ICollection&lt;HistoryMark&gt;)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.ClearMark(HistoryMark)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.Parent](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.DoneList](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs), [HistoryManagerAddon.UndoneList](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryManagerAddon.cs)

#### 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_History_ObjectBaseAddon__ctor"></a> ObjectBaseAddon()

```csharp
public ObjectBaseAddon()

```

## Properties

### <a id="VM_Managed_History_ObjectBaseAddon_List"></a> List

```csharp
protected IEnumerable<UIntPtr> List { get; }

```

#### Property Value

IEnumerable&lt;UIntPtr&gt;

## Methods

### <a id="VM_Managed_History_ObjectBaseAddon_AddEntity_System_UIntPtr_"></a> AddEntity(UIntPtr)

```csharp
public void AddEntity(UIntPtr key)

```

#### Parameters

`key` UIntPtr

### <a id="VM_Managed_History_ObjectBaseAddon_AfterRedo_System_Object_VM_Managed_History_HistoryEventArgs_"></a> AfterRedo(object, HistoryEventArgs)

```csharp
protected override sealed void AfterRedo(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_AfterRollback_System_Object_VM_Managed_History_HistoryEventArgs_"></a> AfterRollback(object, HistoryEventArgs)

```csharp
protected override sealed void AfterRollback(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_AfterUndo_System_Object_VM_Managed_History_HistoryEventArgs_"></a> AfterUndo(object, HistoryEventArgs)

```csharp
protected override sealed void AfterUndo(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_BeforeRedo_System_Object_VM_Managed_History_HistoryEventArgs_"></a> BeforeRedo(object, HistoryEventArgs)

```csharp
protected override sealed void BeforeRedo(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_BeforeRollback_System_Object_VM_Managed_History_HistoryEventArgs_"></a> BeforeRollback(object, HistoryEventArgs)

```csharp
protected override sealed void BeforeRollback(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_BeforeUndo_System_Object_VM_Managed_History_HistoryEventArgs_"></a> BeforeUndo(object, HistoryEventArgs)

```csharp
protected override sealed void BeforeUndo(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_Init_System_Object_VM_Managed_History_HistoryEventArgs_"></a> Init(object, HistoryEventArgs)

```csharp
protected virtual void Init(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_Process_System_Object_VM_Managed_History_HistoryEventArgs_"></a> Process(object, HistoryEventArgs)

```csharp
protected virtual void Process(object o, HistoryEventArgs args)

```

#### Parameters

`o` object

`args` [HistoryEventArgs](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEventArgs.cs)

### <a id="VM_Managed_History_ObjectBaseAddon_RemoveEntity_System_UIntPtr_"></a> RemoveEntity(UIntPtr)

```csharp
public void RemoveEntity(UIntPtr key)

```

#### Parameters

`key` UIntPtr