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VB.NET IsolatedStorageFile.CreateDirectory方法代码示例

本文整理汇总了VB.NET中System.IO.IsolatedStorage.IsolatedStorageFile.CreateDirectory方法的典型用法代码示例。如果您正苦于以下问题:VB.NET IsolatedStorageFile.CreateDirectory方法的具体用法?VB.NET IsolatedStorageFile.CreateDirectory怎么用?VB.NET IsolatedStorageFile.CreateDirectory使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.IO.IsolatedStorage.IsolatedStorageFile的用法示例。


在下文中一共展示了IsolatedStorageFile.CreateDirectory方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: SetNewPrefsForUser

Public Function SetNewPrefsForUser() As Double
    Try
        Dim inputChar As Byte
        Dim isoFile As IsolatedStorageFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.User Or _
            IsolatedStorageScope.Assembly Or IsolatedStorageScope.Domain, _
            GetType(System.Security.Policy.Url), GetType(System.Security.Policy.Url))

        ' If this is not a new user, archive the old preferences and 
        ' overwrite them using the new preferences.
        If Not Me.myNewPrefs Then
            If isoFile.GetDirectoryNames("Archive").Length = 0 Then
                isoFile.CreateDirectory("Archive")
            Else

                Dim source As New IsolatedStorageFileStream(Me.userName, FileMode.OpenOrCreate, isoFile)
                Dim canWrite, canRead As Boolean
                ' This is the stream from which data will be read.
                If source.CanRead Then canRead = True Else canRead = False
                Console.WriteLine("Is the source file readable? " & canRead)
                Console.WriteLine("Creating new IsolatedStorageFileStream for Archive.")
                ' Open or create a writable file.
                Dim target As New IsolatedStorageFileStream("Archive\ " & Me.userName, _
                     FileMode.OpenOrCreate, FileAccess.Write, FileShare.Write, isoFile)
                ' This is the stream to which data will be written.
                If target.CanWrite Then canWrite = True Else canWrite = False
                Console.WriteLine("Is the target file writable? " & canWrite)
                target.SetLength(0)  'rewind the target file

                ' Stream the old file to a new file in the Archive directory.
                If source.IsAsync And target.IsAsync Then
                    ' IsolatedStorageFileStreams cannot be asynchronous.  However, you
                    ' can use the asynchronous BeginRead and BeginWrite functions
                    ' with some possible performance penalty.
                    Console.WriteLine("IsolatedStorageFileStreams cannot be asynchronous.")
                Else
                    Console.WriteLine("Writing data to the new file.")
                    While source.Position < source.Length
                        inputChar = CByte(source.ReadByte())
                        target.WriteByte(inputChar)
                    End While

                    ' Determine the size of the IsolatedStorageFileStream
                    ' by checking its Length property.
                    Console.WriteLine(("Total Bytes Read: " & source.Length))
                End If

                ' After you have read and written to the streams, close them.	
                target.Close()
                source.Close()
            End If
        End If
        ' Open or create a writable file with a maximum size of 10K.
        Dim isoStream As New IsolatedStorageFileStream(Me.userName, FileMode.OpenOrCreate, _
            FileAccess.Write, FileShare.Write, 10240, isoFile)
        isoStream.SetLength(0) 'Position to overwrite the old data.
开发者ID:VB.NET开发者,项目名称:System.IO.IsolatedStorage,代码行数:55,代码来源:IsolatedStorageFile.CreateDirectory

示例2: Tester

' 导入命名空间
Imports System.IO.IsolatedStorage
        
Public Class Tester
    Public Shared Sub Main

        Dim myIsoStore As IsolatedStorageFile

        Try
            myIsoStore.CreateDirectory("newDir")

            Dim myIsoStroeStream As New IsolatedStorageFileStream("test.txt", IO.FileMode.Create.Create, myIsoStore)
            myIsoStroeStream.Close()
        Catch ex As IsolatedStorageException
            Console.WriteLine(ex.Message)
        End Try
    End Sub
End Class
开发者ID:VB程序员,项目名称:System.IO.IsolatedStorage,代码行数:18,代码来源:IsolatedStorageFile.CreateDirectory


注:本文中的System.IO.IsolatedStorage.IsolatedStorageFile.CreateDirectory方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。