本文整理匯總了VB.NET中System.IO.Log.FileRegion.Offset屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET FileRegion.Offset屬性的具體用法？VB.NET FileRegion.Offset怎麽用？VB.NET FileRegion.Offset使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.IO.Log.FileRegion的用法示例。
在下文中一共展示了FileRegion.Offset屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: LogBackup
Friend Class LogBackup
Private Shared Sub ArchiveToXML(ByVal logStore As LogStore, ByVal fileName As String)
Dim snapshot As LogArchiveSnapshot = logStore.CreateLogArchiveSnapshot()
Dim writer As New XmlTextWriter(fileName, System.Text.Encoding.ASCII)
writer.WriteStartElement("logArchive")
For Each region As FileRegion In snapshot.ArchiveRegions
With writer
.WriteStartElement("fileRegion")
.WriteElementString("path", region.Path)
.WriteElementString("length", region.FileLength.ToString())
.WriteElementString("offset", region.Offset.ToString())
End With
Using dataStream As Stream = region.GetStream()
Dim data(dataStream.Length - 1) As Byte
dataStream.Read(data, 0, data.Length)
writer.WriteElementString("data", System.Convert.ToBase64String(data))
End Using
writer.WriteEndElement()
Next region
writer.Close()
logStore.SetArchiveTail(snapshot.LastSequenceNumber)
End Sub
Private Shared Sub RestoreFromXML(ByVal fileName As String)
Using reader As New XmlTextReader(fileName)
reader.ReadStartElement("logArchive")
Do While reader.IsStartElement()
Dim path As String
Dim length As Long
Dim offset As Long
path = reader.ReadElementString("path")
length = System.Int64.Parse(reader.ReadElementString("length"))
offset = System.Int64.Parse(reader.ReadElementString("offset"))
Dim dataString = reader.ReadElementString("data")
Dim data() = System.Convert.FromBase64String(dataString)
Dim fileStream As FileStream
fileStream = New FileStream(path, FileMode.OpenOrCreate, FileAccess.Write)
Using fileStream
fileStream.SetLength(length)
fileStream.Position = offset
fileStream.Write(data, 0, data.Length)
End Using
Loop
reader.ReadEndElement()
End Using
End Sub
End Class