ReadOnlyDictionary<TKey,TValue>.KeyCollection ReadOnlyDictionary<TKey,TValue>.KeyCollection ReadOnlyDictionary<TKey,TValue>.KeyCollection ReadOnlyDictionary<TKey,TValue>.KeyCollection Class

定義

表示 ReadOnlyDictionary<TKey,TValue> 物件之索引鍵的唯讀集合。Represents a read-only collection of the keys of a ReadOnlyDictionary<TKey,TValue> object.

public: ref class ReadOnlyDictionary<TKey, TValue>::KeyCollection sealed : System::Collections::Generic::ICollection<TKey>, System::Collections::Generic::IEnumerable<TKey>, System::Collections::Generic::IReadOnlyCollection<TKey>, System::Collections::ICollection
[System.Serializable]
public sealed class ReadOnlyDictionary<TKey,TValue>.KeyCollection : System.Collections.Generic.ICollection<TKey>, System.Collections.Generic.IEnumerable<TKey>, System.Collections.Generic.IReadOnlyCollection<TKey>, System.Collections.ICollection
type ReadOnlyDictionary<'Key, 'Value>.KeyCollection = class
    interface ICollection<'Key>
    interface ICollection
    interface IReadOnlyCollection<'Key>
    interface seq<'Key>
    interface IEnumerable
Public NotInheritable Class ReadOnlyDictionary(Of TKey, TValue).KeyCollection
Implements ICollection, ICollection(Of TKey), IEnumerable(Of TKey), IReadOnlyCollection(Of TKey)

類型參數

TKey
TValue
繼承
ReadOnlyDictionary<TKey,TValue>.KeyCollectionReadOnlyDictionary<TKey,TValue>.KeyCollectionReadOnlyDictionary<TKey,TValue>.KeyCollectionReadOnlyDictionary<TKey,TValue>.KeyCollection
屬性
實作

屬性

Count Count Count Count

取得集合中的項目數。Gets the number of elements in the collection.

方法

CopyTo(TKey[], Int32) CopyTo(TKey[], Int32) CopyTo(TKey[], Int32) CopyTo(TKey[], Int32)

從特定的陣列索引開始,將集合的元素複製到陣列中。Copies the elements of the collection to an array, starting at a specific array index.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

傳回逐一查看集合的列舉值。Returns an enumerator that iterates through the collection.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

建立目前 Object 的淺層複本 (Shallow Copy)。Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

傳回代表目前物件的字串。Returns a string that represents the current object.

(Inherited from Object)

明確介面實作

ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32)

從特定的陣列索引開始,將集合的元素複製到陣列中。Copies the elements of the collection to an array, starting at a specific array index.

ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized

取得值,這個值會指出是否同步處理對集合的存取 (具備執行緒安全)。Gets a value that indicates whether access to the collection is synchronized (thread safe).

ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot

取得物件,這個物件可以用來對集合進行同步存取。Gets an object that can be used to synchronize access to the collection.

ICollection<TKey>.Add(TKey) ICollection<TKey>.Add(TKey) ICollection<TKey>.Add(TKey) ICollection<TKey>.Add(TKey)

在所有情況下都會擲回 NotSupportedException 例外狀況。Throws a NotSupportedException exception in all cases.

ICollection<TKey>.Clear() ICollection<TKey>.Clear() ICollection<TKey>.Clear() ICollection<TKey>.Clear()

在所有情況下都會擲回 NotSupportedException 例外狀況。Throws a NotSupportedException exception in all cases.

ICollection<TKey>.Contains(TKey) ICollection<TKey>.Contains(TKey) ICollection<TKey>.Contains(TKey) ICollection<TKey>.Contains(TKey)

判斷此集合是否包含特定的值。Determines whether the collection contains a specific value.

ICollection<TKey>.IsReadOnly ICollection<TKey>.IsReadOnly ICollection<TKey>.IsReadOnly ICollection<TKey>.IsReadOnly

取得值,這個值表示字典是否為唯讀。Gets a value that indicates whether the dictionary is read-only.

ICollection<TKey>.Remove(TKey) ICollection<TKey>.Remove(TKey) ICollection<TKey>.Remove(TKey) ICollection<TKey>.Remove(TKey)

在所有情況下都會擲回 NotSupportedException 例外狀況。Throws a NotSupportedException exception in all cases.

IEnumerable.GetEnumerator() IEnumerable.GetEnumerator() IEnumerable.GetEnumerator() IEnumerable.GetEnumerator()

傳回逐一查看集合的列舉值。Returns an enumerator that iterates through the collection.

Extension Methods

CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>)

傳回DataTable,其中包含副本DataRow物件,指定輸入IEnumerable<T>物件其中泛型參數TDataRowReturns a DataTable that contains copies of the DataRow objects, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption)

複本DataRow至指定的物件DataTable,根據輸入IEnumerable<T>物件其中泛型參數TDataRowCopies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler)

複本DataRow至指定的物件DataTable,根據輸入IEnumerable<T>物件其中泛型參數TDataRowCopies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable)

IEnumerable 的項目轉換成指定的型別。Casts the elements of an IEnumerable to the specified type.

OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable)

根據指定的型別來篩選 IEnumerable 的項目。Filters the elements of an IEnumerable based on a specified type.

AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable)

啟用查詢的平行化作業。Enables parallelization of a query.

AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable)

將轉換IEnumerableIQueryableConverts an IEnumerable to an IQueryable.

Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>)

傳回包含來源集合中每個節點祖系的項目集合。Returns a collection of elements that contains the ancestors of every node in the source collection.

Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName)

傳回包含來源集合中每個節點祖系的已篩選項目集合。Returns a filtered collection of elements that contains the ancestors of every node in the source collection. 集合中只會包含具有相符之 XName 的項目。Only elements that have a matching XName are included in the collection.

DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>)

傳回來源集合中每個文件和項目之子代節點的集合。Returns a collection of the descendant nodes of every document and element in the source collection.

Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>)

傳回包含來源集合中每個項目和文件之子代項目的項目集合。Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName)

傳回已篩選的項目集合,其中包含來源集合中每個項目和文件的子代項目。Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. 集合中只會包含具有相符之 XName 的項目。Only elements that have a matching XName are included in the collection.

Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>)

傳回來源集合中每個項目和文件的子項目集合。Returns a collection of the child elements of every element and document in the source collection.

Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName)

傳回來源集合中每個項目和文件的已篩選子項目集合。Returns a filtered collection of the child elements of every element and document in the source collection. 集合中只會包含具有相符之 XName 的項目。Only elements that have a matching XName are included in the collection.

InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>)

傳回包含來源集合中所有節點的節點集合,依據文件順序來排序。Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.

Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>)

傳回來源集合中每個文件和項目的子節點集合。Returns a collection of the child nodes of every document and element in the source collection.

Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>)

在來源集合中,從每一個節點的父節點移除這些節點。Removes every node in the source collection from its parent node.

適用於