## On this page
# Class LinkCollection<T, TLink, TCollection\\>
Last update: 09.03.2026
Namespace: [VM.Managed.Collections](VM.Managed.Collections.md)
Assembly: VMAppCore.dll
```csharp
public class LinkCollection : ILinkCollection, IPostDeserialized where T : class where TLink : class, ITypedLink where TCollection : ICollection, new()
```
#### Type Parameters
`T`
`TLink`
`TCollection`
#### Inheritance
object ← [LinkCollection<T, TLink, TCollection>](VM.Managed.Collections.LinkCollection-3.md)
#### Implements
[ILinkCollection](VM.Managed.Collections.ILinkCollection.md), IPostDeserialized
#### 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
### LinkCollection(ILinkContainer)
```csharp
public LinkCollection(ILinkContainer objParent)
```
#### Parameters
`objParent` ILinkContainer
### LinkCollection(ILinkContainer, TCollection)
```csharp
public LinkCollection(ILinkContainer objParent, TCollection collection)
```
#### Parameters
`objParent` ILinkContainer
`collection` TCollection
## Fields
### m\_collection
```csharp
protected TCollection m_collection
```
#### Field Value
TCollection
### m\_ehCollectionChanged
```csharp
protected NotifyCollectionChangedEventHandler m_ehCollectionChanged
```
#### Field Value
NotifyCollectionChangedEventHandler
### m\_objLinkOwner
```csharp
protected ILinkContainer m_objLinkOwner
```
#### Field Value
ILinkContainer
### m\_syncLock
```csharp
protected object m_syncLock
```
#### Field Value
object
## Properties
### Count
```csharp
public virtual int Count { get; }
```
#### Property Value
int
### IsReadOnly
```csharp
public virtual bool IsReadOnly { get; }
```
#### Property Value
bool
## Methods
### Add(T)
```csharp
public virtual void Add(T item)
```
#### Parameters
`item` T
### Add(T, bool)
```csharp
public virtual void Add(T item, bool bContainsDocument)
```
#### Parameters
`item` T
`bContainsDocument` bool
### AddDestroyEvent(TLink)
```csharp
protected void AddDestroyEvent(TLink obj)
```
#### Parameters
`obj` TLink
### Clear()
```csharp
public virtual void Clear()
```
### Clear(bool)
```csharp
public virtual void Clear(bool bContainsDocument)
```
#### Parameters
`bContainsDocument` bool
### Contains(T)
```csharp
public virtual bool Contains(T item)
```
#### Parameters
`item` T
#### Returns
bool
### CopyTo(T\[\], int)
```csharp
public virtual void CopyTo(T[] ar, int arrayIndex)
```
#### Parameters
`ar` T\[\]
`arrayIndex` int
### GetEnumerator()
```csharp
public virtual IEnumerator GetEnumerator()
```
#### Returns
IEnumerator<T>
### GetEnumeratorImpl()
```csharp
IEnumerator GetEnumeratorImpl()
```
#### Returns
IEnumerator
### Remove(T)
```csharp
public virtual bool Remove(T item)
```
#### Parameters
`item` T
#### Returns
bool
### Remove(T, bool)
```csharp
public virtual bool Remove(T item, bool bContainsDocument)
```
#### Parameters
`item` T
`bContainsDocument` bool
#### Returns
bool
### SetModified(ModifiedType, bool)
```csharp
public void SetModified(ModifiedType modifiedType, bool bContainsDocument)
```
#### Parameters
`modifiedType` [ModifiedType](VM.Managed.Collections.ModifiedType.md)
`bContainsDocument` bool
### SimpleValueModifiedForCollection(ModifiedType)
```csharp
protected void SimpleValueModifiedForCollection(ModifiedType modifiedType)
```
#### Parameters
`modifiedType` [ModifiedType](VM.Managed.Collections.ModifiedType.md)
### SimpleValueModifiedForCollection(ModifiedType, bool)
```csharp
protected void SimpleValueModifiedForCollection(ModifiedType modifiedType, bool bContainsDocument)
```
#### Parameters
`modifiedType` [ModifiedType](VM.Managed.Collections.ModifiedType.md)
`bContainsDocument` bool
### raise\_CollectionChanged(object, NotifyCollectionChangedEventArgs)
```csharp
public void raise_CollectionChanged(object objNotifier, NotifyCollectionChangedEventArgs e)
```
#### Parameters
`objNotifier` object
`e` NotifyCollectionChangedEventArgs
### CollectionChanged
```csharp
public event NotifyCollectionChangedEventHandler CollectionChanged
```
#### Event Type
NotifyCollectionChangedEventHandler