DtsProperties.Item Property

Статья
12/15/2008

Returns a DtsProperty object from the collection.

Пространство имен: Microsoft.SqlServer.Dts.Runtime
Сборка: Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)

Синтаксис

'Декларация
Public ReadOnly Default Property Item ( _
    index As Object _
) As DtsProperty

public DtsProperty this [
    Object index
] { get; }

public:
property DtsProperty^ default [Object^] {
    DtsProperty^ get (Object^ index);
}

/** @property */
public DtsProperty get_Item (Object index)

Параметры

index
The name, index, or identity of the DtsProperty object to return.

Значение свойства

A DtsProperty object.

Замечания

If the call to Contains method returns true, you can access the specified element in the collection by using the syntax DtsProperties[index]. If Contains method returns false, this property throws an exception. In C#, this property is the indexer for the DtsProperties class.

Пример

The following code sample retrieves an item from the collection by using the DtsProperties[x] syntax to retrieve the name of the fifth object in the collection.

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

namespace DtsProperties_API
{
    class Program
    {
        static void Main(string[] args)
        {
            Package pkg = new Package();

            // Get the Properties collection from the package.
            // This shows the default properties set on new packages.
            DtsProperties pkgProperties = pkg.Properties;

           // Create the enumerator.
            PropertyEnumerator myEnumerator = pkgProperties.GetEnumerator();

            // Show the use of the Contains method.
            Boolean containsCertObj = pkgProperties.Contains("CertificateObject");
            Console.WriteLine("Contains CertificateObject? {0}", containsCertObj);

            // Show the use of the item[x] syntax.
            String aName = pkgProperties[5].Name;
            Console.WriteLine("Property 5 is {0}", aName);

            // Show the use of the MoveNext and Current methods.
            int i = 0;
            while ((myEnumerator.MoveNext()) && (myEnumerator.Current != null))
            {
                Console.WriteLine("[{0}] {1}", i++, myEnumerator.Current.Name);
            }
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
 
Namespace DtsProperties_API
    Class Program
        Shared  Sub Main(ByVal args() As String)
            Dim pkg As Package =  New Package() 
 
            ' Get the Properties collection from the package.
            ' This shows the default properties set on new packages.
            Dim pkgProperties As DtsProperties =  pkg.Properties 
 
           ' Create the enumerator.
            Dim myEnumerator As PropertyEnumerator =  pkgProperties.GetEnumerator() 
 
            ' Show the use of the Contains method.
            Dim containsCertObj As Boolean =  pkgProperties.Contains("CertificateObject") 
            Console.WriteLine("Contains CertificateObject? {0}", containsCertObj)
 
            ' Show the use of the item[x] syntax.
            Dim aName As String =  pkgProperties(5).Name 
            Console.WriteLine("Property 5 is {0}", aName)
 
            ' Show the use of the MoveNext and Current methods.
            Dim i As Integer =  0 
            While (myEnumerator.MoveNext()) &&(myEnumerator.Current <> Nothing)
                Console.WriteLine("[{0}] {1}",i = Console.WriteLine("[{0}] {1}",i + 1
            End While
        End Sub
    End Class
End Namespace

Sample Output:

Contains CertificateObject? True

Property 5 is Configurations

[0] CertificateContext

[1] CertificateObject

[2] CheckpointFileName

[3] CheckpointUsage

[4] CheckSignatureOnLoad

[5] Configurations

[6] Connections

[7] CreationDate

[8] CreationName

[9] CreatorComputerName

[10] CreatorName

[11] DelayValidation

. . .

[63] VersionGUID

[64] VersionMajor

[65] VersionMinor

[66] Warnings

Синхронизация потоков

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы