LogEntryInfoEnumerator.Current Property

Reference

Definition

Namespace:: Microsoft.SqlServer.Dts.Runtime

Assembly:: Microsoft.SqlServer.ManagedDTS.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets the current LogEntryInfo object from the collection.

public:
 property Microsoft::SqlServer::Dts::Runtime::LogEntryInfo ^ Current { Microsoft::SqlServer::Dts::Runtime::LogEntryInfo ^ get(); };

public Microsoft.SqlServer.Dts.Runtime.LogEntryInfo Current { get; }

member this.Current : Microsoft.SqlServer.Dts.Runtime.LogEntryInfo

Public ReadOnly Property Current As LogEntryInfo

Property Value

LogEntryInfo

Gets the current LogEntryInfo element in the collection.

Examples

The following code sample creates an enumerator, and then uses the Current, MoveNext, and Reset methods to navigate over the collection.

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);  

            //Create the Enumerator.  
            LogEntryInfos leInfos = pkg.LogEntryInfos;  
            LogEntryInfoEnumerator myEnumerator = leInfos.GetEnumerator();  
            Console.WriteLine("The collection contains the following values:");  
            int i = 0;  
            while ((myEnumerator.MoveNext()) && (myEnumerator.Current != null))  
                Console.WriteLine("[{0}] {1}", i++, myEnumerator.Current);  

            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)   

            'Create the Enumerator.  
            Dim leInfos As LogEnTryInfos =  pkg.LogEnTryInfos   
            Dim myEnumerator As LogEnTryInfoEnumerator =  leInfos.GetEnumerator()   
            Console.WriteLine("The collection contains the following values:")  
            Dim i As Integer =  0   
            While (myEnumerator.MoveNext()) &&(myEnumerator.Current <> Nothing)  
            Console.WriteLine("[{0}] {1}",i = Console.WriteLine("[{0}] {1}",i + 1  
            End While  

            Console.WriteLine()  
        End Sub  
    End Class  
End Namespace

Sample Output:

The collection contains the following values:

[0] Microsoft.SqlServer.Dts.Runtime.LogEntryInfo

Remarks

After an enumerator is created, or after a call to the Reset method, the MoveNext method must be called to advance the enumerator to the first element of the collection before the enumerator can read the value of the Current property; otherwise, Current is undefined and throws an exception.

Current also throws an exception if the last call to MoveNext returned false, which indicates the end of the collection.

Current does not move the position of the enumerator, and consecutive calls to Current return the same object until either MoveNext or Reset is called.

An enumerator remains valid as long as the collection remains unchanged. If changes are made to the collection, such as adding, modifying, or deleting elements, the enumerator is invalidated and becomes irrecoverable; thus, the next call to MoveNext or Reset throws an InvalidOperationException. If the collection is modified between calls to MoveNext and Current, Current returns the element that it is set to, even if the enumerator has been invalidated.

Applies to

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