LogProviders.Contains Method

Specifies whether an item can be retrieved from the LogProviders collection using indexing without throwing an exception.

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
  An object that contains the numeric index or identity of the object in the collection.

傳回值

A Boolean that indicates whether items can be retrieved using indexing. A value of true indicates that the syntax LogProviders[x] can be used without throwing an exception. A value of false indicates that indexing cannot be used to retrieve items from the LogProviders collection.

備註

If a log provider is added using the Add method, the Name of the log provider defaults to a GUID.

範例

The following code sample uses Contains method to determine if a log provider with the name "SSIS log provider for Text files" is in the collection. The method returns a Boolean.

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

namespace LogProviders_Tests
{
    class Program
    {
        static void Main(string[] args)
        {
            // The package is one of the SSIS Samples.
            string mySample = @"C:\Program Files\Microsoft SQL Server\90\Samples\Integration Services\Package Samples\CalculatedColumns Sample\CalculatedColumns\CalculatedColumns.dtsx";
            
            // Create the Application, and load the sample.
            Application app = new Application();
            Package pkg = app.LoadPackage(mySample, null);
            LogProviders logProvs = pkg.LogProviders;

            // Search for the "SSIS log provider for Text files"
            // in the collection
            if (logProvs.Contains("SSIS log provider for Text files"))
                Console.WriteLine("The collection contains {0} provider", logProvs[0].CreationName);
            else
                Console.WriteLine("The collection does not contain the SSIS log provider for Text files");
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
 
Namespace LogProviders_Tests
    Class Program
        Shared  Sub Main(ByVal args() As String)
            ' The package is one of the SSIS Samples.
            Dim mySample As String =  "C:\Program Files\Microsoft SQL Server\90\Samples\Integration Services\Package Samples\CalculatedColumns Sample\CalculatedColumns\CalculatedColumns.dtsx" 
 
            ' Create the Application, and load the sample.
            Dim app As Application =  New Application() 
            Dim pkg As Package =  app.LoadPackage(mySample,Nothing) 
            Dim logProvs As LogProviders =  pkg.LogProviders 
 
            ' Search for the "SSIS log provider for Text files"
            ' in the collection
            If logProvs.Contains("SSIS log provider for Text files") Then
                Console.WriteLine("The collection contains {0} provider", logProvs(0).CreationName)
            Else 
                Console.WriteLine("The collection does not contain the SSIS log provider for Text files")
            End If
         End Sub
    End Class
End Namespace

Sample Output:

The collection contains DTS.LogProviderTextFile.1 provider

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

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