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 # Class HiddenDocumentEventBase

 Last update: 09.03.2026 

<a id="VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase"></a>

Namespace: [VM.Managed.DAFUL.GearTrain.History](VM.Managed.DAFUL.GearTrain.History.md)  
Assembly: VMDGearTrain.dll

The hidden document event base class

```csharp
public abstract class HiddenDocumentEventBase : HistoryEvent

```

#### Inheritance

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

#### Derived

[CloseHiddenDocumentEvent](VM.Managed.DAFUL.GearTrain.History.CloseHiddenDocumentEvent.md), [OpenHiddenDocumentEvent](VM.Managed.DAFUL.GearTrain.History.OpenHiddenDocumentEvent.md)

#### Inherited Members

[HistoryEvent.ClearEvent(bool)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.Undo(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.Redo(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.Clear(bool)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.BeforeUndo(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.AfterUndo(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.BeforeRedo(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.AfterRedo(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.BeforeAdded(AddToHistoryManagerEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.AfterAdded(HistoryEventArgs)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.cs), [HistoryEvent.IsValid](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/HistoryEvent.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_DAFUL_GearTrain_History_HiddenDocumentEventBase__ctor_System_Object_System_String_"></a> HiddenDocumentEventBase(object, string)

Initializes a new instance of the  class.

```csharp
public HiddenDocumentEventBase(object obOriginal, string strFilePath)

```

#### Parameters

`obOriginal` object

The original object.

`strFilePath` string

The file path.

## Methods

### <a id="VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase_Clear_System_Boolean_"></a> Clear(bool)

Clear this event.

```csharp
protected override void Clear(bool bReserveReferenceCount)

```

#### Parameters

`bReserveReferenceCount` bool

The event argument for clear.

### <a id="VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase_Close"></a> Close()

Close hidden document.

```csharp
protected void Close()

```

### <a id="VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase_Open"></a> Open()

Open hidden document.

```csharp
protected void Open()

```