DtsProperties.Contains Method

Returns a Boolean that indicates whether the items in the collection can be accessed by using the name, identity, or index of the DtsProperty object.

命名空間: Microsoft.SqlServer.Dts.Runtime
組件: Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)

語法

'宣告
Public Function Contains ( _
    index As Object _
) As Boolean

public bool Contains (
    Object index
)

public:
bool Contains (
    Object^ index
)

public boolean Contains (
    Object index
)

public function Contains (
    index : Object
) : boolean

參數

• index
  The name, identity, or index of the DtsProperty object.

傳回值

A Boolean that indicates whether the collection can be accessed by name, identity, or index. A value of true indicates that the collection can be accessed by using the syntax DtsProperties[index]. A value of false indicates that indexing cannot be used to retrieve items from the DtsProperties collection.

範例

The following code sample uses the Contains method to see if one of the properties in the collection is "CertificateObject".

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

執行緒安全性

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.

平台

開發平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

目標平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

請參閱

參考

DtsProperties Class
DtsProperties Members
Microsoft.SqlServer.Dts.Runtime Namespace