Executables.Contains(Object) 方法
定义
重要
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指示是否可以通过将索引用作参数访问集合中的项。
public:
bool Contains(System::Object ^ index);
public bool Contains (object index);
member this.Contains : obj -> bool
Public Function Contains (index As Object) As Boolean
参数
- index
- Object
Executable 对象的索引。
返回
如果可以使用语法可执行文件[索引]检索项,则为 true;如果索引不能用于从集合中检索项, Executables 则为 false。
示例
下面的代码示例将大容量插入任务添加为可执行文件,然后用于 Contains 验证包中至少有一个可执行文件的存在。
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
示例输出:
Executable creation name is: Microsoft.SqlServer.Dts.Tasks.BulkInsertTask.BulkInsertTask, Microsoft.SqlServer.BulkInsertTask, Version=10.0.000.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
Contains returned true