EventLogEntry.EntryType Property
Definition
Important
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Gets the event type of this entry.
public:
property System::Diagnostics::EventLogEntryType EntryType { System::Diagnostics::EventLogEntryType get(); };
public System.Diagnostics.EventLogEntryType EntryType { get; }
member this.EntryType : System.Diagnostics.EventLogEntryType
Public ReadOnly Property EntryType As EventLogEntryType
Property Value
The event type that is associated with the entry in the event log.
Examples
The following code example demonstrates the use of the EntryType property. In this example, a switch
statement uses console input to search for event log entries for the specified EntryType. If a match is found, log entry source information is displayed at the console.
#using <System.dll>
using namespace System;
using namespace System::Diagnostics;
int main()
{
String^ myEventType = nullptr;
// Associate the instance of 'EventLog' with local System Log.
EventLog^ myEventLog = gcnew EventLog( "System","." );
Console::WriteLine( "1:Error" );
Console::WriteLine( "2:Information" );
Console::WriteLine( "3:Warning" );
Console::WriteLine( "Select the Event Type" );
int myOption = Convert::ToInt32( Console::ReadLine() );
switch ( myOption )
{
case 1:
myEventType = "Error";
break;
case 2:
myEventType = "Information";
break;
case 3:
myEventType = "Warning";
break;
default:
break;
}
EventLogEntryCollection^ myLogEntryCollection = myEventLog->Entries;
int myCount = myLogEntryCollection->Count;
// Iterate through all 'EventLogEntry' instances in 'EventLog'.
for ( int i = myCount - 1; i > -1; i-- )
{
EventLogEntry^ myLogEntry = myLogEntryCollection[ i ];
// Select the entry having desired EventType.
if ( myLogEntry->EntryType.Equals( myEventType ) )
{
// Display Source of the event.
Console::WriteLine( "{0} was the source of last event of type {1}", myLogEntry->Source, myLogEntry->EntryType );
return 0;
}
}
}
using System;
using System.Diagnostics;
class MyEventlogClass
{
public static void Main()
{
String myEventType=null;
// Associate the instance of 'EventLog' with local System Log.
EventLog myEventLog = new EventLog("System", ".");
Console.WriteLine("1:Error");
Console.WriteLine("2:Information");
Console.WriteLine("3:Warning");
Console.WriteLine("Select the Event Type");
int myOption=Convert.ToInt32(Console.ReadLine());
switch(myOption)
{
case 1: myEventType="Error";
break;
case 2: myEventType="Information";
break;
case 3: myEventType="Warning";
break;
default: break;
}
EventLogEntryCollection myLogEntryCollection=myEventLog.Entries;
int myCount =myLogEntryCollection.Count;
// Iterate through all 'EventLogEntry' instances in 'EventLog'.
for(int i=myCount-1;i>-1;i--)
{
EventLogEntry myLogEntry = myLogEntryCollection[i];
// Select the entry having desired EventType.
if(myLogEntry.EntryType.ToString().Equals(myEventType))
{
// Display Source of the event.
Console.WriteLine(myLogEntry.Source
+" was the source of last event of type "
+myLogEntry.EntryType);
return;
}
}
}
}
Imports System.Diagnostics
Class MyEventlogClass
Public Shared Sub Main()
Dim myEventType As String = Nothing
' Associate the instance of 'EventLog' with local System Log.
Dim myEventLog As New EventLog("System", ".")
Console.WriteLine("1:Error")
Console.WriteLine("2:Information")
Console.WriteLine("3:Warning")
Console.WriteLine("Select the Event Type")
Dim myOption As Integer = Convert.ToInt32(Console.ReadLine())
Select Case myOption
Case 1
myEventType = "Error"
Case 2
myEventType = "Information"
Case 3
myEventType = "Warning"
Case Else
End Select
Dim myLogEntryCollection As EventLogEntryCollection = myEventLog.Entries
Dim myCount As Integer = myLogEntryCollection.Count
' Iterate through all 'EventLogEntry' instances in 'EventLog'.
Dim i As Integer
For i = myCount - 1 To 0 Step -1
Dim myLogEntry As EventLogEntry = myLogEntryCollection(i)
' Select the entry having desired EventType.
If myLogEntry.EntryType.ToString().Equals(myEventType) Then
' Display Source of the event.
Console.WriteLine(myLogEntry.Source + " was the source of last "& _
"event of type " & myLogEntry.EntryType.ToString())
Return
End If
Next
End Sub
End Class
Remarks
All event types have well-defined common data and can optionally include event-specific data. Each event is of a single type, which the application indicates when it reports the event. The Event Viewer uses the event type to determine which icon to display in the list view of the event log.
Applies to
See also
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