ModelItemDictionary.IDictionary.Contains(Object) 方法

定义

命名空间:

System.Activities.Presentation.Model

程序集:

System.Activities.Presentation.dll

确定 IDictionary 对象是否包含具有指定键的元素。

 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

参数

key

Object

要在 IDictionary 对象中查找的键。

返回

Boolean

如果 true 包含具有键的元素，则为 IDictionary；否则为 false。

实现

Contains(Object)