DataFileCollection 类

The DataFileCollection class represents a collection of DataFile objects that represent all the data files defined on the parent object.

继承层次结构

System.Object
  Microsoft.SqlServer.Management.Smo.AbstractCollectionBase
    Microsoft.SqlServer.Management.Smo.SmoCollectionBase
      Microsoft.SqlServer.Management.Smo.SortedListCollectionBase
        Microsoft.SqlServer.Management.Smo.SimpleObjectCollectionBase
          Microsoft.SqlServer.Management.Smo.DataFileCollection

命名空间：  Microsoft.SqlServer.Management.Smo
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
Public NotInheritable Class DataFileCollection _
    Inherits SimpleObjectCollectionBase
用法
Dim instance As DataFileCollection

public sealed class DataFileCollection : SimpleObjectCollectionBase

public ref class DataFileCollection sealed : public SimpleObjectCollectionBase

[<SealedAttribute>]
type DataFileCollection =  
    class 
        inherit SimpleObjectCollectionBase 
    end

public final class DataFileCollection extends SimpleObjectCollectionBase

DataFileCollection 类型公开以下成员。

属性

	名称	说明
	Count	Gets the number of objects in the referenced collection. （从 SmoCollectionBase 继承。）
	IsSynchronized	Gets the Boolean property value that specifies whether access to the collection is synchronized and therefore thread-safe. （从 SmoCollectionBase 继承。）
	Item[Int32]	Gets a DataFile object in the collection by index number.
	Item[String]	Gets a DataFile object in the collection by name.
	Parent	Gets the FileGroup object that is the parent of the DataFileCollection object.
	SyncRoot	Gets an object that can be used to synchronize access to the collection. （从 SmoCollectionBase 继承。）

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方法

	名称	说明
	Add	Adds a DataFile object to the DataFileCollection collection.
	AddExisting	Adds an object to the collection. （从 AbstractCollectionBase 继承。）
	Contains	Verifies whether the specified object exists in the collection. （从 SimpleObjectCollectionBase 继承。）
	CopyTo	Copies the collection objects to a one-dimensional array beginning at the index value specified.
	Equals	（从 Object 继承。）
	GetEnumerator	Returns an IEnumerator interface that allows you to iterate through the objects in the collection. （从 SmoCollectionBase 继承。）
	GetHashCode	（从 Object 继承。）
	GetType	（从 Object 继承。）
	ItemById	Extracts a member from the DataFileCollection collection using a system-defined, unique identifier.
	Refresh()	Refreshes the referenced collection. （从 SmoCollectionBase 继承。）
	Refresh(Boolean)	Refreshes the referenced collection with the option to refresh child objects of the referenced collection. （从 SmoCollectionBase 继承。）
	Remove(String)	Removes a DataFile object from the DataFileCollection collection by specifying the name of the data file.
	Remove(DataFile)	Removes a DataFile object from the DataFileCollection collection by specifying the object.
	ToString	（从 Object 继承。）

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字段

	名称	说明
	initialized	This value supports the SMO infrastructure and is not intended to be used directly from your code. （从 AbstractCollectionBase 继承。）

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显式接口实现

	名称	说明
	ICollection.CopyTo	Copies the elements from an instance to an array beginning at the index indicated. （从 SmoCollectionBase 继承。）

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注释

A DataFileCollection object can be used to gain access to a set of check constraints. You can use the Item property to return a specific DataFile object.

示例

使用集合

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。

请参阅

参考

Microsoft.SqlServer.Management.Smo 命名空间