EmptyEnumerator 类
Acts as a placeholder when enumeration is called on an empty collection. The runtime returns the empty enumerator when there are no elements in the collection to enumerate over. This class cannot be inherited.
继承层次结构
System.Object
Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO.EmptyEnumerator
命名空间: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO
程序集: Microsoft.SqlServer.ForEachSMOEnumerator(在 Microsoft.SqlServer.ForEachSMOEnumerator.dll 中)
语法
声明
Public NotInheritable Class EmptyEnumerator _
Implements IEnumerator
用法
Dim instance As EmptyEnumerator
public sealed class EmptyEnumerator : IEnumerator
public ref class EmptyEnumerator sealed : IEnumerator
[<SealedAttribute>]
type EmptyEnumerator =
class
interface IEnumerator
end
public final class EmptyEnumerator implements IEnumerator
EmptyEnumerator 类型公开以下成员。
构造函数
名称 | 说明 | |
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EmptyEnumerator | Initializes a new instance of the EmptyEnumerator class. |
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属性
名称 | 说明 | |
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Current | Raises an error indicating an empty enumerator. |
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方法
名称 | 说明 | |
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Equals | (从 Object 继承。) |
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GetHashCode | (从 Object 继承。) |
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GetType | (从 Object 继承。) |
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MoveNext | Advances the enumerator to the next element of the collection. Returns false if there is no object to move to. |
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Reset | Sets the enumerator to its initial position, which is before the first element in the collection. |
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ToString | (从 Object 继承。) |
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线程安全
此类型的任何公共 static(在 Visual Basic 中为 Shared) 成员都是线程安全的。不保证所有实例成员都是线程安全的。