EventLogEntryCollection.Item[Int32] Property

Reference

Definition

Namespace:: System.Diagnostics

Assembly:: System.Diagnostics.EventLog.dll

Assembly:: System.dll

Package:: System.Diagnostics.EventLog v10.0.0-preview.1.25080.5

Source:: EventLogEntryCollection.cs

Source:: EventLogEntryCollection.cs

Source:: EventLogEntryCollection.cs

Source:: EventLogEntryCollection.cs

Source:: EventLogEntryCollection.cs

Source:: EventLogEntryCollection.cs

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 an entry in the event log, based on an index that starts at 0 (zero).

public:
 virtual property System::Diagnostics::EventLogEntry ^ default[int] { System::Diagnostics::EventLogEntry ^ get(int index); };

public virtual System.Diagnostics.EventLogEntry this[int index] { get; }

member this.Item(int) : System.Diagnostics.EventLogEntry

Default Public Overridable ReadOnly Property Item(index As Integer) As EventLogEntry

Parameters

index: Int32

The zero-based index that is associated with the event log entry.

Property Value

EventLogEntry

The event log entry at the location that is specified by the index parameter.

Examples

The following example demonstrates how to display information for the items in an EventLogEntryCollection object.

// Create a new EventLog object.
EventLog^ myEventLog1 = gcnew EventLog;
myEventLog1->Log = myLogName;

// Obtain the Log Entries of the Event Log
EventLogEntryCollection^ myEventLogEntryCollection = myEventLog1->Entries;
Console::WriteLine( "The number of entries in 'MyNewLog' = {0}", myEventLogEntryCollection->Count );

// Display the 'Message' property of EventLogEntry.
for ( int i = 0; i < myEventLogEntryCollection->Count; i++ )
{
   Console::WriteLine( "The Message of the EventLog is : {0}", myEventLogEntryCollection[ i ]->Message );
}

// Create a new EventLog object.
EventLog myEventLog1 = new EventLog();
myEventLog1.Log = myLogName;
// Obtain the Log Entries of the Event Log
EventLogEntryCollection myEventLogEntryCollection = myEventLog1.Entries;
Console.WriteLine("The number of entries in 'MyNewLog' = " +
                        myEventLogEntryCollection.Count);
// Display the 'Message' property of EventLogEntry.
for (int i = 0; i < myEventLogEntryCollection.Count; i++)
{
    Console.WriteLine("The Message of the EventLog is :" +
                            myEventLogEntryCollection[i].Message);
}

' Create a new EventLog object.
Dim myEventLog1 As New EventLog()
myEventLog1.Log = myLogName
' Obtain the Log Entries of the Event Log
Dim myEventLogEntryCollection As EventLogEntryCollection = myEventLog1.Entries
Console.WriteLine("The number of entries in 'MyNewLog' = " + _
                           myEventLogEntryCollection.Count.ToString())
' Display the 'Message' property of EventLogEntry.
Dim i As Integer
For i = 0 To myEventLogEntryCollection.Count - 1
   Console.WriteLine("The Message of the EventLog is :" + _
                  myEventLogEntryCollection(i).Message)
Next i

Remarks

EventLogEntry objects are indexed by the event log system according to the chronological order in which they arrived in the event log. Use the Item[] property to select a specific event log entry whose index in the collection is known.

Iterating through the EventLogEntryCollection instance steps through each EventLogEntry object sequentially. The collection is dynamic and the number of entries may not be immutable when you enter the loop. Therefore, you should use a for each...next loop instead of a for(int i=0; i<count, i++) loop to step through entries that are associated with the EventLogEntryCollection instance to examine the entire set of entries.

Because new entries are appended to the existing list, stepping through the collection enables you to access the entries that were created after you originally created the EventLogEntryCollection.

Applies to

Tuote	Versiot
.NET	8 (package-provided), 9 (package-provided), 10 (package-provided)
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided)
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

Jaa