LogEntryInfos.Contains(Object) 方法

定义

命名空间:

Microsoft.SqlServer.Dts.Runtime

程序集:

Microsoft.SqlServer.ManagedDTS.dll

表示集合中的项目是否可以通过索引访问而不抛出异常。

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

集合中要找到的对象的名称、描述、ID或索引 LogEntryInfo 。

返回

Boolean

一个布尔值，指示集合是否可以通过名称、描述、ID或索引访问。 值为true表示可以通过语法LogEntryInfos[index]访问该集合。 值为false表示索引无法用于从集合中检索项 LogEntryInfos ;使用该属性会抛出异常。

示例

以下代码示例使用该 Contains 方法来判断集合中是否存在名为“Diagnostic”的日志条目。 该方法返回一个 Boolean。

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

namespace LogEntryInfosTest  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            // The package is one of the SSIS Samples.  
            string mySample = @"C:\Program Files\Microsoft SQL Server\100\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);  

            // Get the LogEntryInfos from the package.  
            LogEntryInfos logInfos = pkg.LogEntryInfos;  

            //See if the collection contains a LogEntryInfo named "Diagnostic".  
            Boolean logDiagnostic = logInfos.Contains("Diagnostic");  
            Console.WriteLine("Contains Diagnostic? {0}", logDiagnostic);  

            Console.WriteLine();  
        }  
    }  
}  

Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime  

Namespace LogEnTryInfosTest  
    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\100\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)   

            ' Get the LogEntryInfos from the package.  
            Dim logInfos As LogEnTryInfos =  pkg.LogEnTryInfos   

            'See if the collection contains a LogEntryInfo named "Diagnostic".  
            Dim logDiagnostic As Boolean =  logInfos.Contains("Diagnostic")   
            Console.WriteLine("Contains Diagnostic? {0}", logDiagnostic)  

            Console.WriteLine()  
        End Sub  
    End Class  
End Namespace  

示例输出：

包含诊断？ 是