ModelItemDictionary.IDictionary.Contains(Object) 方法

  • 參考

定義

命名空間:
System.Activities.Presentation.Model
組件:
System.Activities.Presentation.dll

判斷 IDictionary 物件是否包含具有指定索引鍵的項目。

 virtual bool System.Collections.IDictionary.Contains(System::Object ^ key) = System::Collections::IDictionary::Contains;
bool IDictionary.Contains (object key);
abstract member System.Collections.IDictionary.Contains : obj -> bool
override this.System.Collections.IDictionary.Contains : obj -> bool
Function Contains (key As Object) As Boolean Implements IDictionary.Contains

參數

key
Object

要在 IDictionary 物件中尋找的索引鍵。

傳回

Boolean

如果 true 包含具有該索引鍵的項目，則為 IDictionary，否則為 false。

實作

Contains(Object)

適用於