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 # Class ExtendedObservableCollection<T\\>

 Last update: 16.07.2025 

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

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

```

#### Type Parameters

`T`

#### Inheritance

[object](https://learn.microsoft.com/dotnet/api/system.object) ← [Collection&lt;T&gt;](https://learn.microsoft.com/dotnet/api/system.collections.objectmodel.collection-1) ← [ObservableCollection&lt;T&gt;](https://learn.microsoft.com/dotnet/api/system.collections.objectmodel.observablecollection-1) ← [ExtendedObservableCollection&lt;T&gt;](VM.Collections.ExtendedObservableCollection-1.md)

## Constructors

### ExtendedObservableCollection(bool)

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

```

#### Parameters

`isResetToRemove` [bool](https://learn.microsoft.com/dotnet/api/system.boolean)

## Properties

### IsResetToRemove

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

```

#### Property Value

[bool](https://learn.microsoft.com/dotnet/api/system.boolean)

## Methods

### AddRange(IEnumerable&lt;T&gt;)

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

```

#### Parameters

`collection` [IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)&lt;T&gt;

### ClearItems()

```csharp
protected override void ClearItems()

```

### OnCollectionChanged(NotifyCollectionChangedEventArgs)

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

```

#### Parameters

`e` [NotifyCollectionChangedEventArgs](https://learn.microsoft.com/dotnet/api/system.collections.specialized.notifycollectionchangedeventargs)

### SuspendNotifications()

```csharp
public IDisposable SuspendNotifications()

```

#### Returns

[IDisposable](https://learn.microsoft.com/dotnet/api/system.idisposable)

### CollectionChanged

```csharp
public override event NotifyCollectionChangedEventHandler CollectionChanged

```

#### Event Type

[NotifyCollectionChangedEventHandler](https://learn.microsoft.com/dotnet/api/system.collections.specialized.notifycollectionchangedeventhandler)