CollectionExtensions.AsReadOnly Method

Definition

Namespace:: System.Collections.Generic

Assemblies:: netstandard.dll, System.Collections.dll

Important

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Overloads

Name	Description
AsReadOnly(IList)	Returns a read-only ReadOnlyCollection wrapper for the specified list.
AsReadOnly(ISet)	Returns a read-only ReadOnlySet wrapper for the specified set.
AsReadOnly(IDictionary)	Returns a read-only ReadOnlyDictionary wrapper for the current dictionary.

AsReadOnly(IList)

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Returns a read-only ReadOnlyCollection wrapper for the specified list.

public:
generic 
[System::Runtime::CompilerServices::Extension]
 static System::Collections::ObjectModel::ReadOnlyCollection ^ AsReadOnly(System::Collections::Generic::IList ^ list);

public static System.Collections.ObjectModel.ReadOnlyCollection AsReadOnly(this System.Collections.Generic.IList list);

static member AsReadOnly : System.Collections.Generic.IList<'T> -> System.Collections.ObjectModel.ReadOnlyCollection<'T>


Public Function AsReadOnly(Of T) (list As IList(Of T)) As ReadOnlyCollection(Of T)

Type Parameters

T

The type of elements in the collection.

Parameters

list: IList

The list to wrap.

Returns

ReadOnlyCollection

An object that acts as a read-only wrapper around the current IList.

Exceptions

ArgumentNullException

list is null.

Applies to

AsReadOnly(ISet)

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Returns a read-only ReadOnlySet wrapper for the specified set.

public:
generic 
[System::Runtime::CompilerServices::Extension]
 static System::Collections::ObjectModel::ReadOnlySet ^ AsReadOnly(System::Collections::Generic::ISet ^ set);

public static System.Collections.ObjectModel.ReadOnlySet AsReadOnly(this System.Collections.Generic.ISet set);

static member AsReadOnly : System.Collections.Generic.ISet<'T> -> System.Collections.ObjectModel.ReadOnlySet<'T>


Public Function AsReadOnly(Of T) (set As ISet(Of T)) As ReadOnlySet(Of T)

Type Parameters

T

The type of elements in the set.

Parameters

set: ISet

The set to wrap.

Returns

ReadOnlySet

An object that acts as a read-only wrapper around the current ISet.

Exceptions

ArgumentNullException

set is null.

Applies to

AsReadOnly(IDictionary)

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Source:: CollectionExtensions.cs

Returns a read-only ReadOnlyDictionary wrapper for the current dictionary.

public:
generic 
[System::Runtime::CompilerServices::Extension]
 static System::Collections::ObjectModel::ReadOnlyDictionary ^ AsReadOnly(System::Collections::Generic::IDictionary ^ dictionary);

public static System.Collections.ObjectModel.ReadOnlyDictionary AsReadOnly(this System.Collections.Generic.IDictionary dictionary);

static member AsReadOnly : System.Collections.Generic.IDictionary<'Key, 'Value> -> System.Collections.ObjectModel.ReadOnlyDictionary<'Key, 'Value>


Public Function AsReadOnly(Of TKey, TValue) (dictionary As IDictionary(Of TKey, TValue)) As ReadOnlyDictionary(Of TKey, TValue)

Type Parameters

TKey

The type of keys in the dictionary.

TValue

The type of values in the dictionary.

Parameters

dictionary: IDictionary

The dictionary to wrap.

Returns

ReadOnlyDictionary

An object that acts as a read-only wrapper around the current IDictionary.

Exceptions

ArgumentNullException

dictionary is null.

Applies to

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