LogExtentCollection 클래스
정의
중요
일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.
public ref class LogExtentCollection sealed : System::Collections::Generic::IEnumerable<System::IO::Log::LogExtent ^>public sealed class LogExtentCollection : System.Collections.Generic.IEnumerable<System.IO.Log.LogExtent>type LogExtentCollection = class
interface seq<LogExtent>
interface IEnumerablePublic NotInheritable Class LogExtentCollection
Implements IEnumerable(Of LogExtent)- 상속
-
LogExtentCollection
- 구현
예제
이 예제에서는 LogExtent 및 LogExtentCollection 클래스를 사용하여 로그 시퀀스에서 익스텐트를 추가하고 에뮬레이트하는 방법을 보여 줍니다.
using System;
using System.IO;
using System.Collections.Generic;
using System.Text;
using System.IO.Log;
namespace MyLogRecordSequence
{
public class MyLog
{
string logName = "test.log";
string logContainer = "MyExtent0";
int containerSize = 32 * 1024;
LogRecordSequence sequence = null;
bool delete = true;
// These are used in the TailPinned event handler.
public static LogRecordSequence MySequence = null;
public static bool AdvanceBase = true;
public MyLog()
{
// Create a LogRecordSequence.
sequence = new LogRecordSequence(this.logName,
FileMode.CreateNew,
FileAccess.ReadWrite,
FileShare.None);
// At least one container/extent must be added for Log Record Sequence.
sequence.LogStore.Extents.Add(this.logContainer, this.containerSize);
MySequence = sequence;
}
public void AddExtents()
{
// Add two additional extents. The extents are
// of the same size as the first extent.
sequence.LogStore.Extents.Add("MyExtent1");
sequence.LogStore.Extents.Add("MyExtent2");
}
public void EnumerateExtents()
{
LogStore store = sequence.LogStore;
Console.WriteLine("Enumerating Log Extents...");
Console.WriteLine(" Extent Count: {0} extents", store.Extents.Count);
Console.WriteLine(" Extents Are...");
foreach (LogExtent extent in store.Extents)
{
Console.WriteLine(" {0} ({1}, {2})",
Path.GetFileName(extent.Path),
extent.Size,
extent.State);
}
Console.WriteLine(" Free Extents: {0} Free", store.Extents.FreeCount);
}
public void SetLogPolicy()
{
Console.WriteLine();
Console.WriteLine("Setting current log policy...");
// SET LOG POLICY
LogPolicy policy = sequence.LogStore.Policy;
// Set AutoGrow policy. This enables the log to automatically grow
// when the existing extents are full. New extents are added until
// we reach the MaximumExtentCount extents.
// AutoGrow policy is supported only in Windows Vista and not available in R2.
//policy.AutoGrow = true;
// Set the Growth Rate in terms of extents. This policy specifies
// "how much" the log should grow.
policy.GrowthRate = new PolicyUnit(2, PolicyUnitType.Extents);
// Set the AutoShrink policy. This enables the log to automatically
// shrink if the available free space exceeds the shrink percentage.
// AutoGrow/shrink policy is supported only in Windows Vista and not available in R2.
//policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage);
// Set the PinnedTailThreshold policy.
// A tail pinned event is triggered when there is no
// log space available and log space may be freed by advancing the base.
// The user must handle the tail pinned event by advancing the base of the log.
// If the user is not able to move the base of the log, the user should report with exception in
// the tail pinned handler.
// PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests
// for advancing the base of the log. The amount of space can be in percentage or in terms of bytes
// which is rounded off to the nearest containers in CLFS. The default is 35 percent.
policy.PinnedTailThreshold = new PolicyUnit(10, PolicyUnitType.Percentage);
// Set the maximum extents the log can have.
policy.MaximumExtentCount = 6;
// Set the minimum extents the log can have.
policy.MinimumExtentCount = 2;
// Set the prefix for new containers that are added.
// when AutoGrow is enabled.
//policy.NewExtentPrefix = "MyLogPrefix";
// Set the suffix number for new containers that are added.
// when AutoGrow is enabled.
policy.NextExtentSuffix = 3;
// Commit the log policy.
policy.Commit();
// Refresh updates the IO.Log policy properties with current log policy
// set in the log.
policy.Refresh();
// LOG POLICY END
//
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Setting up IO.Log provided capabilities...
//
// SET RETRY APPEND
// IO.Log provides a mechanism similar to AutoGrow.
// If the existing log is full and an append fails, setting RetryAppend
// invokes the CLFS policy engine to add new extents and re-tries
// record appends. If MaximumExtent count has been reached,
// a SequenceFullException is thrown.
//
sequence.RetryAppend = true;
// RETRY APPEND END
// REGISTER FOR TAILPINNED EVENT NOTIFICATIONS
// Register for TailPinned Event by passing in an event handler.
// An event is raised when the log full condition is reached.
// The user should either advance the base sequence number to the
// nearest valid sequence number recommended in the tail pinned event or
// report a failure that it is not able to advance the base sequence
// number.
//
sequence.TailPinned += new EventHandler<TailPinnedEventArgs>(HandleTailPinned);
Console.WriteLine("Done...");
}
public void ShowLogPolicy()
{
Console.WriteLine();
Console.WriteLine("Showing current log policy...");
LogPolicy policy = sequence.LogStore.Policy;
Console.WriteLine(" Minimum extent count: {0}", policy.MinimumExtentCount);
Console.WriteLine(" Maximum extent count: {0}", policy.MaximumExtentCount);
Console.WriteLine(" Growth rate: {0}", policy.GrowthRate);
Console.WriteLine(" Pinned tail threshold: {0}", policy.PinnedTailThreshold);
Console.WriteLine(" Auto shrink percent: {0}", policy.AutoShrinkPercentage);
Console.WriteLine(" Auto grow enabled: {0}", policy.AutoGrow);
Console.WriteLine(" New extent prefix: {0}", policy.NewExtentPrefix);
Console.WriteLine(" Next extent suffix: {0}", policy.NextExtentSuffix);
}
// Append records. Appending three records.
public void AppendRecords()
{
Console.WriteLine("Appending Log Records...");
SequenceNumber previous = SequenceNumber.Invalid;
previous = sequence.Append(CreateData("Hello World!"), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush);
previous = sequence.Append(CreateData("This is my first Logging App"), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush);
previous = sequence.Append(CreateData("Using LogRecordSequence..."), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush);
Console.WriteLine("Done...");
}
// Read the records added to the log.
public void ReadRecords()
{
Encoding enc = Encoding.Unicode;
Console.WriteLine();
Console.WriteLine("Reading Log Records...");
try
{
foreach (LogRecord record in this.sequence.ReadLogRecords(this.sequence.BaseSequenceNumber, LogRecordEnumeratorType.Next))
{
byte[] data = new byte[record.Data.Length];
record.Data.Read(data, 0, (int)record.Data.Length);
string mystr = enc.GetString(data);
Console.WriteLine(" {0}", mystr);
}
}
catch (Exception e)
{
Console.WriteLine("Exception {0} {1}", e.GetType(), e.Message);
}
Console.WriteLine();
}
public void FillLog()
{
bool append = true;
while (append)
{
try
{
sequence.Append(CreateData(16 * 1024), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush);
}
catch (SequenceFullException)
{
Console.WriteLine("Log is Full...");
append = false;
}
}
}
// Dispose the record sequence and delete the log file.
public void Cleanup()
{
// Dispose the sequence
sequence.Dispose();
// Delete the log file.
if (delete)
{
try
{
// This deletes the base log file and all the extents associated with the log.
LogStore.Delete(this.logName);
}
catch (Exception e)
{
Console.WriteLine("Exception {0} {1}", e.GetType(), e.Message);
}
}
}
// Converts the given data to an Array of ArraySegment<byte>
public static IList<ArraySegment<byte>> CreateData(string str)
{
Encoding enc = Encoding.Unicode;
byte[] array = enc.GetBytes(str);
ArraySegment<byte>[] segments = new ArraySegment<byte>[1];
segments[0] = new ArraySegment<byte>(array);
return Array.AsReadOnly<ArraySegment<byte>>(segments);
}
public static IList<ArraySegment<byte>> CreateData(int size)
{
byte[] array = new byte[size];
Random rnd = new Random();
rnd.NextBytes(array);
ArraySegment<byte>[] segments = new ArraySegment<byte>[1];
segments[0] = new ArraySegment<byte>(array);
return Array.AsReadOnly<ArraySegment<byte>>(segments);
}
public static SequenceNumber GetAdvanceBaseSeqNumber(SequenceNumber recTargetSeqNum)
{
SequenceNumber targetSequenceNumber = SequenceNumber.Invalid;
Console.WriteLine("Getting actual target sequence number...");
//
// Implement the logic for returning a valid sequence number closer to
// recommended target sequence number.
//
return targetSequenceNumber;
}
public static void HandleTailPinned(object arg, TailPinnedEventArgs tailPinnedEventArgs)
{
Console.WriteLine("TailPinned has fired");
// Based on the implementation of a logging application, the log base can be moved
// to free up more log space and if it is not possible to move the
// base, the application should report by throwing an exception.
if(MyLog.AdvanceBase)
{
try
{
// TailPnnedEventArgs has the recommended sequence number and its generated
// based on PinnedTailThreshold policy.
// This does not map to an actual sequence number in the record sequence
// but an approximation and potentially frees up the threshold % log space
// when the log base is advanced to a valid sequence number closer to the
// recommended sequence number.
// The user should use this sequence number to locate a closest valid sequence
// number to advance the base of the log.
SequenceNumber recommendedTargetSeqNum = tailPinnedEventArgs.TargetSequenceNumber;
// Get the actual Target sequence number.
SequenceNumber actualTargetSeqNum = MyLog.GetAdvanceBaseSeqNumber(recommendedTargetSeqNum);
MySequence.AdvanceBaseSequenceNumber(actualTargetSeqNum);
}
catch (Exception e)
{
Console.WriteLine("Exception thrown {0} {1}", e.GetType(), e.Message);
}
}
else
{
// Report back Error if under some conditions the log cannot
// advance the base sequence number.
Console.WriteLine("Reporting Error! Unable to move the base sequence number!");
throw new IOException();
}
}
}
class LogSample
{
static void Main(string[] args)
{
// Create log record sequence.
MyLog log = new MyLog();
// Add additional extents.
log.AddExtents();
// Enumerate the current log extents.
log.EnumerateExtents();
// Set log policies and register for TailPinned event notifications.
log.SetLogPolicy();
log.ShowLogPolicy();
// Append a few records and read the appended records.
log.AppendRecords();
log.ReadRecords();
// Fill the Log to trigger log growth...and subsequent TailPinned notifications.
log.FillLog();
log.EnumerateExtents();
log.Cleanup();
}
}
}
Imports System.IO
Imports System.Collections.Generic
Imports System.Text
Imports System.IO.Log
Namespace MyLogRecordSequence
Public Class MyLog
Private logName As String = "test.log"
Private logContainer As String = "MyExtent0"
Private containerSize As Integer = 32 * 1024
Private sequence As LogRecordSequence = Nothing
Private delete As Boolean = True
' These are used in the TailPinned event handler.
Public Shared MySequence As LogRecordSequence = Nothing
Public Shared AdvanceBase As Boolean = True
Public Sub New()
' Create a LogRecordSequence.
sequence = New LogRecordSequence(Me.logName, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None)
' At least one container/extent must be added for Log Record Sequence.
sequence.LogStore.Extents.Add(Me.logContainer, Me.containerSize)
MySequence = sequence
End Sub
Public Sub AddExtents()
' Add two additional extents. The extents are
' of the same size as the first extent.
sequence.LogStore.Extents.Add("MyExtent1")
sequence.LogStore.Extents.Add("MyExtent2")
End Sub
Public Sub EnumerateExtents()
Dim store As LogStore = sequence.LogStore
Console.WriteLine("Enumerating Log Extents...")
Console.WriteLine(" Extent Count: {0} extents", store.Extents.Count)
Console.WriteLine(" Extents Are...")
For Each extent In store.Extents
Console.WriteLine(" {0} ({1}, {2})", Path.GetFileName(extent.Path), extent.Size, extent.State)
Next extent
Console.WriteLine(" Free Extents: {0} Free", store.Extents.FreeCount)
End Sub
Public Sub SetLogPolicy()
Console.WriteLine()
Console.WriteLine("Setting current log policy...")
' SET LOG POLICY
Dim policy As LogPolicy = sequence.LogStore.Policy
' Set AutoGrow policy. This enables the log to automatically grow
' when the existing extents are full. New extents are added until
' we reach the MaximumExtentCount extents.
' AutoGrow policy is supported only in Windows Vista and not available in R2.
'policy.AutoGrow = true;
' Set the Growth Rate in terms of extents. This policy specifies
' "how much" the log should grow.
policy.GrowthRate = New PolicyUnit(2, PolicyUnitType.Extents)
' Set the AutoShrink policy. This enables the log to automatically
' shrink if the available free space exceeds the shrink percentage.
' AutoGrow/shrink policy is supported only in Windows Vista and not available in R2.
'policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage);
' Set the PinnedTailThreshold policy.
' A tail pinned event is triggered when there is no
' log space available and log space may be freed by advancing the base.
' The user must handle the tail pinned event by advancing the base of the log.
' If the user is not able to move the base of the log, the user should report with exception in
' the tail pinned handler.
' PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests
' for advancing the base of the log. The amount of space can be in percentage or in terms of bytes
' which is rounded off to the nearest containers in CLFS. The default is 35 percent.
policy.PinnedTailThreshold = New PolicyUnit(10, PolicyUnitType.Percentage)
' Set the maximum extents the log can have.
policy.MaximumExtentCount = 6
' Set the minimum extents the log can have.
policy.MinimumExtentCount = 2
' Set the prefix for new containers that are added.
' when AutoGrow is enabled.
'policy.NewExtentPrefix = "MyLogPrefix";
' Set the suffix number for new containers that are added.
' when AutoGrow is enabled.
policy.NextExtentSuffix = 3
' Commit the log policy.
policy.Commit()
' Refresh updates the IO.Log policy properties with current log policy
' set in the log.
policy.Refresh()
' LOG POLICY END
'
'+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
' Setting up IO.Log provided capabilities...
'
' SET RETRY APPEND
' IO.Log provides a mechanism similar to AutoGrow.
' If the existing log is full and an append fails, setting RetryAppend
' invokes the CLFS policy engine to add new extents and re-tries
' record appends. If MaximumExtent count has been reached,
' a SequenceFullException is thrown.
'
sequence.RetryAppend = True
' RETRY APPEND END
' REGISTER FOR TAILPINNED EVENT NOTIFICATIONS
' Register for TailPinned Event by passing in an event handler.
' An event is raised when the log full condition is reached.
' The user should either advance the base sequence number to the
' nearest valid sequence number recommended in the tail pinned event or
' report a failure that it is not able to advance the base sequence
' number.
'
AddHandler sequence.TailPinned, AddressOf HandleTailPinned
Console.WriteLine("Done...")
End Sub
Public Sub ShowLogPolicy()
Console.WriteLine()
Console.WriteLine("Showing current log policy...")
Dim policy As LogPolicy = sequence.LogStore.Policy
Console.WriteLine(" Minimum extent count: {0}", policy.MinimumExtentCount)
Console.WriteLine(" Maximum extent count: {0}", policy.MaximumExtentCount)
Console.WriteLine(" Growth rate: {0}", policy.GrowthRate)
Console.WriteLine(" Pinned tail threshold: {0}", policy.PinnedTailThreshold)
Console.WriteLine(" Auto shrink percent: {0}", policy.AutoShrinkPercentage)
Console.WriteLine(" Auto grow enabled: {0}", policy.AutoGrow)
Console.WriteLine(" New extent prefix: {0}", policy.NewExtentPrefix)
Console.WriteLine(" Next extent suffix: {0}", policy.NextExtentSuffix)
End Sub
' Append records. Appending three records.
Public Sub AppendRecords()
Console.WriteLine("Appending Log Records...")
Dim previous As SequenceNumber = SequenceNumber.Invalid
previous = sequence.Append(CreateData("Hello World!"), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush)
previous = sequence.Append(CreateData("This is my first Logging App"), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush)
previous = sequence.Append(CreateData("Using LogRecordSequence..."), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush)
Console.WriteLine("Done...")
End Sub
' Read the records added to the log.
Public Sub ReadRecords()
Dim enc As Encoding = Encoding.Unicode
Console.WriteLine()
Console.WriteLine("Reading Log Records...")
Try
For Each record As LogRecord In Me.sequence.ReadLogRecords(Me.sequence.BaseSequenceNumber, LogRecordEnumeratorType.Next)
Dim data(record.Data.Length - 1) As Byte
record.Data.Read(data, 0, CInt(Fix(record.Data.Length)))
Dim mystr As String = enc.GetString(data)
Console.WriteLine(" {0}", mystr)
Next record
Catch e As Exception
Console.WriteLine("Exception {0} {1}", e.GetType(), e.Message)
End Try
Console.WriteLine()
End Sub
Public Sub FillLog()
Dim append As Boolean = True
Do While append
Try
sequence.Append(CreateData(16 * 1024), SequenceNumber.Invalid, SequenceNumber.Invalid, RecordAppendOptions.ForceFlush)
Catch e1 As SequenceFullException
Console.WriteLine("Log is Full...")
append = False
End Try
Loop
End Sub
' Dispose the record sequence and delete the log file.
Public Sub Cleanup()
' Dispose the sequence
sequence.Dispose()
' Delete the log file.
If delete Then
Try
' This deletes the base log file and all the extents associated with the log.
LogStore.Delete(Me.logName)
Catch e As Exception
Console.WriteLine("Exception {0} {1}", e.GetType(), e.Message)
End Try
End If
End Sub
' Converts the given data to an Array of ArraySegment<byte>
Public Shared Function CreateData(ByVal str As String) As IList(Of ArraySegment(Of Byte))
Dim enc As Encoding = Encoding.Unicode
Dim array() As Byte = enc.GetBytes(str)
Dim segments(0) As ArraySegment(Of Byte)
segments(0) = New ArraySegment(Of Byte)(array)
Return System.Array.AsReadOnly(Of ArraySegment(Of Byte))(segments)
End Function
Public Shared Function CreateData(ByVal size As Integer) As IList(Of ArraySegment(Of Byte))
Dim array(size - 1) As Byte
Dim rand As New Random()
rand.NextBytes(array)
Dim segments(0) As ArraySegment(Of Byte)
segments(0) = New ArraySegment(Of Byte)(array)
Return System.Array.AsReadOnly(Of ArraySegment(Of Byte))(segments)
End Function
Public Shared Function GetAdvanceBaseSeqNumber(ByVal recTargetSeqNum As SequenceNumber) As SequenceNumber
Dim targetSequenceNumber As SequenceNumber = SequenceNumber.Invalid
Console.WriteLine("Getting actual target sequence number...")
'
' Implement the logic for returning a valid sequence number closer to
' recommended target sequence number.
'
Return targetSequenceNumber
End Function
Public Shared Sub HandleTailPinned(ByVal arg As Object, ByVal tailPinnedEventArgs As TailPinnedEventArgs)
Console.WriteLine("TailPinned has fired")
' Based on the implementation of a logging application, the log base can be moved
' to free up more log space and if it is not possible to move the
' base, the application should report by throwing an exception.
If MyLog.AdvanceBase Then
Try
' TailPnnedEventArgs has the recommended sequence number and its generated
' based on PinnedTailThreshold policy.
' This does not map to an actual sequence number in the record sequence
' but an approximation and potentially frees up the threshold % log space
' when the log base is advanced to a valid sequence number closer to the
' recommended sequence number.
' The user should use this sequence number to locate a closest valid sequence
' number to advance the base of the log.
Dim recommendedTargetSeqNum As SequenceNumber = tailPinnedEventArgs.TargetSequenceNumber
' Get the actual Target sequence number.
Dim actualTargetSeqNum As SequenceNumber = MyLog.GetAdvanceBaseSeqNumber(recommendedTargetSeqNum)
MySequence.AdvanceBaseSequenceNumber(actualTargetSeqNum)
Catch e As Exception
Console.WriteLine("Exception thrown {0} {1}", e.GetType(), e.Message)
End Try
Else
' Report back Error if under some conditions the log cannot
' advance the base sequence number.
Console.WriteLine("Reporting Error! Unable to move the base sequence number!")
Throw New IOException()
End If
End Sub
End Class
Friend Class LogSample
Shared Sub Main(ByVal args() As String)
' Create log record sequence.
Dim log As New MyLog()
' Add additional extents.
log.AddExtents()
' Enumerate the current log extents.
log.EnumerateExtents()
' Set log policies and register for TailPinned event notifications.
log.SetLogPolicy()
log.ShowLogPolicy()
' Append a few records and read the appended records.
log.AppendRecords()
log.ReadRecords()
' Fill the Log to trigger log growth...and subsequent TailPinned notifications.
log.FillLog()
log.EnumerateExtents()
log.Cleanup()
End Sub
End Class
End Namespace
설명
이 클래스는 LogStore연결된 LogExtent 개체의 컬렉션을 포함합니다. LogStore 인스턴스는 LogExtent 인스턴스가 나타내는 디스크 익스텐트 컬렉션에 데이터를 저장합니다. 특정 LogExtent 하나의 LogStore연결되고 동일한 LogStoreLogExtent 개체의 크기는 동일합니다. 공간이 LogStore 인스턴스에 추가되고 익스텐트 단위로 제거됩니다.
LogExtent 개체는 디스크에 파일로 표시되지만 일반 파일로 이동하거나 삭제해서는 안 됩니다. 대신 이 클래스에서 제공하는 메서드를 사용하여 LogExtent 인스턴스를 직접 추가하고 삭제해야 합니다. 일반적으로 익스텐트에서 활성 데이터가 더 이상 포함되지 않으면 제거됩니다. 그러나 Remove 메서드의 force 매개 변수가 true경우 즉시 제거할 수 없는 경우 예외가 throw됩니다.
LogExtentCollection마지막 익스텐트를 제거할 수 없습니다. 즉, 익스텐트를 추가한 후에는 Count 속성이 0이 될 수 없습니다.
속성
| Count |
컬렉션의 로그 익스텐트 수를 가져옵니다. |
| FreeCount |
컬렉션의 자유 LogExtent 인스턴스 수, 즉 데이터를 포함하지 않는 LogExtent 인스턴스 수를 가져옵니다. |
메서드
| Add(String) |
컬렉션에 LogExtent 인스턴스를 추가합니다. |
| Add(String, Int64) |
지정된 크기의 새 LogExtent 만들어 컬렉션에 추가합니다. |
| Equals(Object) |
지정된 개체가 현재 개체와 같은지 여부를 확인합니다. (다음에서 상속됨 Object) |
| GetEnumerator() |
이 컬렉션의 LogExtent 인스턴스에 대한 열거자를 가져옵니다. 이 메서드는 상속할 수 없습니다. |
| GetHashCode() |
기본 해시 함수로 사용됩니다. (다음에서 상속됨 Object) |
| GetType() |
현재 인스턴스의 Type 가져옵니다. (다음에서 상속됨 Object) |
| MemberwiseClone() |
현재 Object단순 복사본을 만듭니다. (다음에서 상속됨 Object) |
| Remove(LogExtent, Boolean) |
컬렉션에서 지정된 LogExtent 인스턴스를 제거합니다. |
| Remove(String, Boolean) |
컬렉션에서 지정된 경로가 있는 LogExtent 인스턴스를 제거합니다. |
| ToString() |
현재 개체를 나타내는 문자열을 반환합니다. (다음에서 상속됨 Object) |
명시적 인터페이스 구현
| IEnumerable.GetEnumerator() |
이 컬렉션의 LogExtent 인스턴스에 대한 열거자를 가져옵니다. 이 메서드는 상속할 수 없습니다. |
확장 메서드
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