Contains 方法
Returns a Boolean that indicates whether the items in the collection can be accessed by using indexing.
命名空间： Microsoft.SqlServer.Dts.Runtime.Enumerators.Item
程序集： Microsoft.SqlServer.ManagedDTS（在 Microsoft.SqlServer.ManagedDTS.dll 中）
语法
声明
Public Function Contains ( _
index As Object _
) As Boolean
用法
Dim instance As ForEachItem
Dim index As Object
Dim returnValue As Boolean
returnValue = instance.Contains(index)
public bool Contains(
Object index
)
public:
bool Contains(
Object^ index
)
member Contains :
index:Object -> bool
public function Contains(
index : Object
) : boolean
参数
- index
类型：System. . :: . .Object
The name, identity, ID, or index of the ForEachItemValue object to locate in the collection.
返回值
类型：System. . :: . .Boolean
true if the collection can be accessed by name, identity, ID, or index using the syntax ForEachItem [index]. false if indexing cannot be used to retrieve items from the collection.
注释
If false, using the ForEachItem [index] syntax throws an exception.