ConnectionInfos.Item[Object] 属性

定义

按名称、索引、ID 或标识从集合中检索 ConnectionInfo 对象。

public:
 property Microsoft::SqlServer::Dts::Runtime::ConnectionInfo ^ default[System::Object ^] { Microsoft::SqlServer::Dts::Runtime::ConnectionInfo ^ get(System::Object ^ index); };
public Microsoft.SqlServer.Dts.Runtime.ConnectionInfo this[object index] { get; }
member this.Item(obj) : Microsoft.SqlServer.Dts.Runtime.ConnectionInfo
Default Public ReadOnly Property Item(index As Object) As ConnectionInfo

参数

index
Object

集合中要返回的对象的名称、索引、ID 或标识。

属性值

一个来自集合的 ConnectionInfo 对象,该对象与在 index 参数中给定的名称、索引、ID 或标识匹配。

示例

下面的代码示例使用两种方法从集合中检索项。 第一种方法使用 connectionInfos[0] 语法检索整个对象,该对象位于集合的第一个位置,然后将其置于对象中 connInfo 。 现在可以像往常一样从 ConnectionInfo 对象中检索所有属性。 第二种方法从集合中的第一个对象检索特定属性。

using System;  
using System.Collections.Generic;  
using System.Text;  
using Microsoft.SqlServer.Dts.Runtime;  

namespace ConnectionInfos_GetEnum  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Application dtsApplication = new Application();  
            ConnectionInfos connectionInfos = dtsApplication.ConnectionInfos;  

            //Using the Item method syntax of [x], obtain the first entry and a name.  
            ConnectionInfo connInfo = connectionInfos[0];  
            String nameOfFirstItem = connectionInfos[0].Name;  

            //Print the name of the log provider object located at position [0].  
            Console.WriteLine("The ID of the first connection info is: {0}", connInfo.ID);  
            Console.WriteLine("The Name of the first connection info is: {0}", nameOfFirstItem);  

        }  
    }  
}  
Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime  

Namespace ConnectionInfos_GetEnum  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim dtsApplication As Application =  New Application()   
            Dim connectionInfos As ConnectionInfos =  dtsApplication.ConnectionInfos   

            'Using the Item method syntax of [x], obtain the first entry and a name.  
            Dim connInfo As ConnectionInfo =  connectionInfos(0)   
            Dim nameOfFirstItem As String =  connectionInfos(0).Name   

            'Print the name of the log provider object located at position [0].  
            Console.WriteLine("The ID of the first connection info is: {0}", connInfo.ID)  
            Console.WriteLine("The Name of the first connection info is: {0}", nameOfFirstItem)  

        End Sub  
    End Class  
End Namespace  

示例输出:

The ID of the first connection info is: {41F5EFE4-E91A-4EB0-BF10-D40FD48B3C03}

The Name of the first connection info is: DTS Connection Manager for Files

注解

如果调用 Contains 该方法返回 true,则可以使用语法 ConnectionInfos[index]访问集合中的指定元素。 Contains如果该方法返回false,此属性将引发异常。 在 C# 中,此属性是 ConnectionInfos 类的索引器。

适用于