Свойство DtsProperties.Item
Returns a DtsProperty object from the collection.
Пространство имен: Microsoft.SqlServer.Dts.Runtime
Сборка: Microsoft.SqlServer.ManagedDTS (в Microsoft.SqlServer.ManagedDTS.dll)
Синтаксис
'Декларация
Public ReadOnly Default Property Item ( _
index As Object _
) As DtsProperty
Get
'Применение
Dim instance As DtsProperties
Dim index As Object
Dim value As DtsProperty
value = instance(index)
public DtsProperty this[
Object index
] { get; }
public:
property DtsProperty^ default[Object^ index] {
DtsProperty^ get (Object^ index);
}
member Item : DtsProperty
JScript поддерживает использование индексированных свойств, но не объявление новых.
Параметры
- index
Тип: System.Object
The name, index, or identity of the DtsProperty object to return.
Значение свойства
Тип: Microsoft.SqlServer.Dts.Runtime.DtsProperty
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.
Примеры
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