ReadOnlyMetadataCollection<T>.Contains(String) 方法
定义
确定集合中是否包含具有指定标识的项。Determines whether the collection contains an item with the specified identity.
public:
virtual bool Contains(System::String ^ identity);
public virtual bool Contains (string identity);
override this.Contains : string -> bool
Public Overridable Function Contains (identity As String) As Boolean
参数
- identity
- String
项的标识。The identity of the item.
返回
如果集合包含要搜索的项,则为 true;否则为 false。true if the collection contains the item to be searched for; otherwise, false. 默认值为 false。The default is false.