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 # Class LayerManager

 Last update: 09.03.2026 

<a id="VM_Managed_LayerManager"></a>

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

This class is to represent the layer manager.

```csharp
public sealed class LayerManager : Object<ObjectEventCore>, IObservableObject, IDisposableObject, ILinkable, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, ILinkContainerEvent, IVerifiable, IHistoryObjectSerializable, IAttributeContainer, IPostDeserialized

```

#### Inheritance

object ← ObservableObject ← [LinkableBase](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/LinkableBase.cs) ← [ObjectBase](VM.Managed.ObjectBase.md) ← [Object&lt;ObjectEventCore&gt;](VM.Managed.Object-1.md) ← [LayerManager](VM.Managed.LayerManager.md)

#### Implements

IObservableObject, IDisposableObject, ILinkable, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, [ILinkContainerEvent](VM.Managed.ILinkContainerEvent.md), [IVerifiable](VM.Managed.IVerifiable.md), [IHistoryObjectSerializable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/Interfaces.cs), [IAttributeContainer](VM.Managed.IAttributeContainer.md), IPostDeserialized

#### Inherited Members

[Object&lt;ObjectEventCore&gt;.GetKey()](VM.Managed.Object-1.md#VM_Managed_Object_1_GetKey), [Object&lt;ObjectEventCore&gt;.Initialize(Unit.ConvertFactor)](VM.Managed.Object-1.md#VM_Managed_Object_1_Initialize_VM_Unit_ConvertFactor_), [Object&lt;ObjectEventCore&gt;.SetIconColor(Canvas)](VM.Managed.Object-1.md#VM_Managed_Object_1_SetIconColor_VM_CAD_Kernel_Render_Canvas_), [Object&lt;ObjectEventCore&gt;.OnDeserializedCore(object)](VM.Managed.Object-1.md#VM_Managed_Object_1_OnDeserializedCore_System_Object_), [Object&lt;ObjectEventCore&gt;.Key](VM.Managed.Object-1.md#VM_Managed_Object_1_Key), [Object&lt;ObjectEventCore&gt;.UntypedEventCore](VM.Managed.Object-1.md#VM_Managed_Object_1_UntypedEventCore), [Object&lt;ObjectEventCore&gt;.EventCore](VM.Managed.Object-1.md#VM_Managed_Object_1_EventCore), [Object&lt;ObjectEventCore&gt;.Attributes](VM.Managed.Object-1.md#VM_Managed_Object_1_Attributes), [ObjectBase.SetModified(ModifiedResult.ModifiedType, IDocument)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_SetModified_VM_Managed_ModifiedResult_ModifiedType_VM_Models_Pre_IDocument_), [ObjectBase.DestroyObject(object, LinkEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_DestroyObject_System_Object_VM_Managed_LinkEventArgs_), [ObjectBase.DestroyObject(DestroyEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_DestroyObject_VM_Managed_DestroyEventArgs_), [ObjectBase.DestroyObject()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_DestroyObject), [ObjectBase.Initialize(Unit.ConvertFactor)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_Initialize_VM_Unit_ConvertFactor_), [ObjectBase.FixUp(ObjectBase)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_FixUp_VM_Managed_ObjectBase_), [ObjectBase.DoWorkAfterUpdateContents()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_DoWorkAfterUpdateContents), [ObjectBase.SetOldNameWithNewEntity(ObjectBase, ObjectBase)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_SetOldNameWithNewEntity_VM_Managed_ObjectBase_VM_Managed_ObjectBase_), [ObjectBase.SetIconColor(Canvas)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_SetIconColor_VM_CAD_Kernel_Render_Canvas_), [ObjectBase.RemoveFromCreatedList()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_RemoveFromCreatedList), [ObjectBase.PostAddToDocument()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_PostAddToDocument), [ObjectBase.PostRemoveFromDocument(Document)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_PostRemoveFromDocument_VM_Managed_Document_), [ObjectBase.GetArgumentList(LinkedList&lt;ObjectBase&gt;)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_GetArgumentList_System_Collections_Generic_LinkedList_VM_Managed_ObjectBase__), [ObjectBase.ResetInvalidEntity()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_ResetInvalidEntity), [ObjectBase.GetObjectByKey(UIntPtr)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_GetObjectByKey_System_UIntPtr_), [ObjectBase.FindObjectOnXmlDeserialize(string)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_FindObjectOnXmlDeserialize_System_String_), [ObjectBase.UpdateContents(XmlReader, ObjectBase, string)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_UpdateContents_System_Xml_XmlReader_VM_Managed_ObjectBase_System_String_), [ObjectBase.UpdateContents(XmlReader, ObjectBase)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_UpdateContents_System_Xml_XmlReader_VM_Managed_ObjectBase_), [ObjectBase.UpdateContents(string, string)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_UpdateContents_System_String_System_String_), [ObjectBase.UpdateContents(string)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_UpdateContents_System_String_), [ObjectBase.SetFlagWhenXMLFile(string, bool)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_SetFlagWhenXMLFile_System_String_System_Boolean_), [ObjectBase.IsEqualArray&lt;T&gt;(T\[\], T\[\])](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_IsEqualArray__1___0_____0___), [ObjectBase.IsEqualList(List&lt;double&gt;, List&lt;double&gt;)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_IsEqualList_System_Collections_Generic_List_System_Double__System_Collections_Generic_List_System_Double__), [ObjectBase.SetContainer(IOwned, bool)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_SetContainer_VM_Models_Pre_IOwned_System_Boolean_), [ObjectBase.GetTargetListForUpdate()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_GetTargetListForUpdate), [ObjectBase.SkipUpdateObjectImpl()](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_SkipUpdateObjectImpl), [ObjectBase.raise\_OnUpdating(object, LinkEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_OnUpdating_System_Object_VM_Managed_LinkEventArgs_), [ObjectBase.raise\_OnUpdate(object, LinkEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_OnUpdate_System_Object_VM_Managed_LinkEventArgs_), [ObjectBase.raise\_OnDestroying(object, LinkEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_OnDestroying_System_Object_VM_Managed_LinkEventArgs_), [ObjectBase.raise\_OnDestroy(object, LinkEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_OnDestroy_System_Object_VM_Managed_LinkEventArgs_), [ObjectBase.raise\_Destroying(object, Identifier)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_Destroying_System_Object_VM_Identifier_), [ObjectBase.raise\_OnAdded(object, AddToDocEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_OnAdded_System_Object_VM_Managed_AddToDocEventArgs_), [ObjectBase.raise\_OnRemoved(object, RemoveFromDocEventArgs)](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_raise_OnRemoved_System_Object_VM_Managed_RemoveFromDocEventArgs_), [ObjectBase.KeyImpl](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_KeyImpl), [ObjectBase.ID](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_ID), [ObjectBase.TopologyEntityTypeName](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_TopologyEntityTypeName), [ObjectBase.ObjectStateForCircularError](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_ObjectStateForCircularError), [ObjectBase.ObjectState](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_ObjectState), [ObjectBase.IsChildExternable](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_IsChildExternable), [ObjectBase.IsExternable](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_IsExternable), [ObjectBase.Container](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_Container), [ObjectBase.Owner](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_Owner), [ObjectBase.Document](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_Document), [ObjectBase.UntypedEventCore](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_UntypedEventCore), [ObjectBase.KernelKey](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_KernelKey), [ObjectBase.Key](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_Key), [ObjectBase.OnContentsUpdated](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnContentsUpdated), [ObjectBase.OnRemoved](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnRemoved), [ObjectBase.OnAdded](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnAdded), [ObjectBase.Destroying](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_Destroying), [ObjectBase.OnDestroy](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnDestroy), [ObjectBase.OnDestroying](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnDestroying), [ObjectBase.OnUpdate](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnUpdate), [ObjectBase.OnUpdating](VM.Managed.ObjectBase.md#VM_Managed_ObjectBase_OnUpdating), ObservableObject.Dispose(), ObservableObject.RaisePropertyChanged(string), ObservableObject.RaisePropertyChanged(string, object, object), ObservableObject.IsDisposed, ObservableObject.TryDisposing, ObservableObject.Disposed, ObservableObject.Disposing, ObservableObject.PropertyChanged

#### 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_)

## Properties

### <a id="VM_Managed_LayerManager_ActiveLayer"></a> ActiveLayer

Gets or sets the active layer.

```csharp
public Layer ActiveLayer { get; set; }

```

#### Property Value

[Layer](VM.Managed.Layer.md)

### <a id="VM_Managed_LayerManager_HiddenLayer"></a> HiddenLayer

Gets or sets the hidden layer.

```csharp
public Layer HiddenLayer { get; }

```

#### Property Value

[Layer](VM.Managed.Layer.md)

### <a id="VM_Managed_LayerManager_Layers"></a> Layers

Gets or sets the layer container.

```csharp
public ICollection<Layer> Layers { get; }

```

#### Property Value

ICollection&lt;[Layer](VM.Managed.Layer.md)&gt;

## Methods

### <a id="VM_Managed_LayerManager_CreateNewLayer"></a> CreateNewLayer()

Create new layer.

```csharp
public Layer CreateNewLayer()

```

#### Returns

[Layer](VM.Managed.Layer.md)

### <a id="VM_Managed_LayerManager_OnDeserialization_System_Object_"></a> OnDeserialization(object)

Called when \[deserialization\].

```csharp
protected override sealed void OnDeserialization(object sender)

```

#### Parameters

`sender` object

The sender.