## On this page

  

 

 # Class OpenHiddenDocumentEvent

 Last update: 16.07.2025 

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

The open hidden document event class

```csharp
public class OpenHiddenDocumentEvent : HiddenDocumentEventBase

```

#### Inheritance

[object](https://learn.microsoft.com/dotnet/api/system.object) ← HistoryEvent ← [HiddenDocumentEventBase](VM.Managed.DAFUL.GearTrain.History.HiddenDocumentEventBase.md) ← [OpenHiddenDocumentEvent](VM.Managed.DAFUL.GearTrain.History.OpenHiddenDocumentEvent.md)

#### Inherited Members

[HiddenDocumentEventBase.Clear(bool)](VM.Managed.DAFUL.GearTrain.History.HiddenDocumentEventBase.md#VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase_Clear_System_Boolean_), [HiddenDocumentEventBase.Open()](VM.Managed.DAFUL.GearTrain.History.HiddenDocumentEventBase.md#VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase_Open), [HiddenDocumentEventBase.Close()](VM.Managed.DAFUL.GearTrain.History.HiddenDocumentEventBase.md#VM_Managed_DAFUL_GearTrain_History_HiddenDocumentEventBase_Close), HistoryEvent.ClearEvent(bool), HistoryEvent.Undo(HistoryEventArgs), HistoryEvent.Redo(HistoryEventArgs), HistoryEvent.Clear(bool), HistoryEvent.BeforeUndo(HistoryEventArgs), HistoryEvent.AfterUndo(HistoryEventArgs), HistoryEvent.BeforeRedo(HistoryEventArgs), HistoryEvent.AfterRedo(HistoryEventArgs), HistoryEvent.BeforeAdded(AddToHistoryManagerEventArgs), HistoryEvent.AfterAdded(HistoryEventArgs), HistoryEvent.IsValid

#### 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

### OpenHiddenDocumentEvent(object, string)

Initializes a new instance of the  class.

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

```

#### Parameters

`obOriginal` [object](https://learn.microsoft.com/dotnet/api/system.object)

The original object.

`strFilePath` [string](https://learn.microsoft.com/dotnet/api/system.string)

The file path.

## Methods

### BeforeRedo(HistoryEventArgs)

Called before redo by HistoryManager.

```csharp
protected override void BeforeRedo(HistoryEventArgs args)

```

#### Parameters

`args` HistoryEventArgs

The event argument for call this method.

### BeforeUndo(HistoryEventArgs)

Called before undo by HistoryManager.

```csharp
protected override void BeforeUndo(HistoryEventArgs args)

```

#### Parameters

`args` HistoryEventArgs

The event argument for call this method.

### OpenHiddenDocument(object, string)

Open hidden document.

```csharp
public static void OpenHiddenDocument(object obj, string strFilePath)

```

#### Parameters

`obj` [object](https://learn.microsoft.com/dotnet/api/system.object)

The object.

`strFilePath` [string](https://learn.microsoft.com/dotnet/api/system.string)

The file path.

### Redo(HistoryEventArgs)

Redo this event.

```csharp
protected override void Redo(HistoryEventArgs args)

```

#### Parameters

`args` HistoryEventArgs

The event argument for redo.

### Undo(HistoryEventArgs)

Undo this event.

```csharp
protected override void Undo(HistoryEventArgs args)

```

#### Parameters

`args` HistoryEventArgs

The event argument for undo.