ExpandoObject.IDictionary<String,Object>.ContainsKey(String) 方法

定義

命名空間:

System.Dynamic

組件:

System.Linq.Expressions.dll

來源:

ExpandoObject.cs

判斷此字典是否包含指定的索引鍵。

 virtual bool System.Collections.Generic.IDictionary<System.String,System.Object>.ContainsKey(System::String ^ key) = System::Collections::Generic::IDictionary<System::String ^, System::Object ^>::ContainsKey;

bool IDictionary<string,object>.ContainsKey (string key);

abstract member System.Collections.Generic.IDictionary<System.String,System.Object>.ContainsKey : string -> bool
override this.System.Collections.Generic.IDictionary<System.String,System.Object>.ContainsKey : string -> bool

Function ContainsKey (key As String) As Boolean Implements IDictionary(Of String, Object).ContainsKey

參數

key

String

要在字典中尋找的索引鍵。

傳回

Boolean

如果字典包含具有指定索引鍵的項目，則為 true；否則為 false。

實作

ContainsKey(TKey)