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 # Class ExtendedObservableCollection<T\\>

 Last update: 09.03.2026 

<a id="VM_Collections_ExtendedObservableCollection_1"></a>

Namespace: [VM.Collections](VM.Collections.md)  
Assembly: VM.dll

```csharp
public class ExtendedObservableCollection<T> : ObservableCollection<T>

```

#### Type Parameters

`T`

#### Inheritance

object ← Collection&lt;T&gt; ← ObservableCollection&lt;T&gt; ← [ExtendedObservableCollection&lt;T&gt;](VM.Collections.ExtendedObservableCollection-1.md)

#### 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_Collections_ExtendedObservableCollection_1__ctor_System_Boolean_"></a> ExtendedObservableCollection(bool)

```csharp
public ExtendedObservableCollection(bool isResetToRemove = false)

```

#### Parameters

`isResetToRemove` bool

## Properties

### <a id="VM_Collections_ExtendedObservableCollection_1_IsResetToRemove"></a> IsResetToRemove

```csharp
public bool IsResetToRemove { get; set; }

```

#### Property Value

bool

## Methods

### <a id="VM_Collections_ExtendedObservableCollection_1_AddRange_System_Collections_Generic_IEnumerable__0__"></a> AddRange(IEnumerable&lt;T&gt;)

```csharp
public void AddRange(IEnumerable<T> collection)

```

#### Parameters

`collection` IEnumerable&lt;T&gt;

### <a id="VM_Collections_ExtendedObservableCollection_1_ClearItems"></a> ClearItems()

```csharp
protected override void ClearItems()

```

### <a id="VM_Collections_ExtendedObservableCollection_1_OnCollectionChanged_System_Collections_Specialized_NotifyCollectionChangedEventArgs_"></a> OnCollectionChanged(NotifyCollectionChangedEventArgs)

```csharp
protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)

```

#### Parameters

`e` NotifyCollectionChangedEventArgs

### <a id="VM_Collections_ExtendedObservableCollection_1_SuspendNotifications"></a> SuspendNotifications()

```csharp
public IDisposable SuspendNotifications()

```

#### Returns

IDisposable

### <a id="VM_Collections_ExtendedObservableCollection_1_CollectionChanged"></a> CollectionChanged

```csharp
public override event NotifyCollectionChangedEventHandler CollectionChanged

```

#### Event Type

NotifyCollectionChangedEventHandler