UserDefinedAggregateCollection 类

The UserDefinedAggregateCollection class represents a collection of UserDefinedAggregate objects that represent all the database user-defined aggregates that are defined on a database.

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.SchemaCollectionBase
          Microsoft.SqlServer.Management.Smo.UserDefinedAggregateCollection

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 UserDefinedAggregateCollection _
    Inherits SchemaCollectionBase
用法
Dim instance As UserDefinedAggregateCollection
public sealed class UserDefinedAggregateCollection : SchemaCollectionBase
public ref class UserDefinedAggregateCollection sealed : public SchemaCollectionBase
[<SealedAttribute>]
type UserDefinedAggregateCollection =  
    class 
        inherit SchemaCollectionBase 
    end
public final class UserDefinedAggregateCollection extends SchemaCollectionBase

UserDefinedAggregateCollection 类型公开以下成员。

属性

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

页首

方法

  名称 说明
公共方法 Add Adds a user-defined aggregate to the collection.
受保护方法 AddExisting Adds an object to the collection. (从 AbstractCollectionBase 继承。)
公共方法 Contains(String) Validates whether the parameter collection contains a member with a name equal to the specified string. (从 SchemaCollectionBase 继承。)
公共方法 Contains(String, String) Validates whether the parameter collection contains a member with a name equal to the specified string and with the specified schema. (从 SchemaCollectionBase 继承。)
公共方法 CopyTo Copies the collection objects to a one-dimensional array starting at the specified index value.
公共方法 Equals (从 Object 继承。)
公共方法 GetEnumerator Returns an IEnumerator interface that allows you to iterate through the objects in the collection. (从 SmoCollectionBase 继承。)
公共方法 GetHashCode (从 Object 继承。)
公共方法 GetType (从 Object 继承。)
公共方法 ItemById Extracts a member from the UserDefinedAggregateCollection object by using a system-defined, unique identifier.
公共方法 Refresh() Refreshes the referenced collection. (从 SmoCollectionBase 继承。)
公共方法 Refresh(Boolean) Refreshes the referenced collection with the option to refresh child objects of the referenced collection. (从 SmoCollectionBase 继承。)
公共方法 ToString (从 Object 继承。)

页首

字段

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

页首

显式接口实现

  名称 说明
显式接口实现私有方法 ICollection.CopyTo Copies the elements from an instance to an array beginning at the index indicated. (从 SmoCollectionBase 继承。)

页首

注释

A UserDefinedAggregateCollection object can be used to gain access to a set of database user-defined aggregates. You can use the Item property to return a specific UserDefinedAggregate object.

Thread Safety

此类型的任何公共静态(Microsoft Visual Basic 中的 Shared)成员在多线程操作中是安全的。但不保证所有实例成员都是线程安全的。

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