共用方式為

Executables.Contains Method

  • 發行項

Returns a Boolean that indicates whether the items in the collection can be accessed using the index as the parameter.

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

傳回值

true if you can retrieve an item using the syntax Executables[index]; false if indexing cannot be used to retrieve items from the Executables collection.

範例

The following code example adds the Bulk Insert task as an executable, then uses Contains to verify the existance of at least one executable in the package.

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

namespace Executables_API
{
        class Program
        {
        static void Main(string[] args)
        {
            Package pkg = new Package();
            Executable exec = pkg.Executables.Add("STOCK:BulkInsertTask");

            // Obtain the collection.
            Executables pgkExecs = pkg.Executables;
            foreach (Executable eachExec in pgkExecs)
            {
                TaskHost th = exec as TaskHost;
                Console.WriteLine("Executable creation name is: {0}", th.CreationName);
            }

            // Show use of Contains.
            if (pgkExecs.Contains(0))
            {
                Console.WriteLine("Contains returned true");
            }
            else
            {
                Console.WriteLine("Contains returned false");
            }
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
 
Namespace Executables_API
        Class Program
        Shared  Sub Main(ByVal args() As String)
            Dim pkg As Package =  New Package() 
            Dim exec As Executable =  pkg.Executables.Add("STOCK:BulkInsertTask") 
 
            ' Obtain the collection.
            Dim pgkExecs As Executables =  pkg.Executables 
            Dim eachExec As Executable
            For Each eachExec In pgkExecs
                Dim th As TaskHost =  exec as TaskHost 
                Console.WriteLine("Executable creation name is: {0}", th.CreationName)
            Next
 
            ' Show use of Contains.
            If pgkExecs.Contains(0) Then
                Console.WriteLine("Contains returned true")
            Else 
                Console.WriteLine("Contains returned false")
            End If
        End Sub
        End Class
End Namespace

Sample Output:

Executable creation name is: Microsoft.SqlServer.Dts.Tasks.BulkInsertTask.BulkInsertTask, Microsoft.SqlServer.BulkInsertTask, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91

Contains returned true

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

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