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 # Class DocumentCategoryAddEvent

 Last update: 16.07.2025 

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

```csharp
public class DocumentCategoryAddEvent : DocumentCategoryAddRemoveEventBase

```

#### Inheritance

[object](https://learn.microsoft.com/dotnet/api/system.object) ← HistoryEvent ← [DocumentCategoryAddRemoveEventBase](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md) ← [DocumentCategoryAddEvent](VM.Managed.History.DocumentCategoryAddEvent.md)

#### Inherited Members

[DocumentCategoryAddRemoveEventBase.m\_doc](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_m_doc), [DocumentCategoryAddRemoveEventBase.m\_objKey](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_m_objKey), [DocumentCategoryAddRemoveEventBase.m\_objAfterKey](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_m_objAfterKey), [DocumentCategoryAddRemoveEventBase.m\_category](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_m_category), [DocumentCategoryAddRemoveEventBase.Clear(bool)](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_Clear_System_Boolean_), [DocumentCategoryAddRemoveEventBase.GetObjectFromKey(UIntPtr)](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_GetObjectFromKey_System_UIntPtr_), [DocumentCategoryAddRemoveEventBase.IsAvailableEvent(IDocument)](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_IsAvailableEvent_VM_Models_Pre_IDocument_), [DocumentCategoryAddRemoveEventBase.AddEventCore(IDocument, HistoryEvent)](VM.Managed.History.DocumentCategoryAddRemoveEventBase.md#VM_Managed_History_DocumentCategoryAddRemoveEventBase_AddEventCore_VM_Models_Pre_IDocument_VM_Managed_History_HistoryEvent_), 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(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Methods

### <a id="VM_Managed_History_DocumentCategoryAddEvent_Redo_VM_Managed_History_HistoryEventArgs_"></a> Redo(HistoryEventArgs)

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

```

#### Parameters

`args` HistoryEventArgs

### <a id="VM_Managed_History_DocumentCategoryAddEvent_Undo_VM_Managed_History_HistoryEventArgs_"></a> Undo(HistoryEventArgs)

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

```

#### Parameters

`args` HistoryEventArgs