BinaryReader.ReadString メソッド
アセンブリ: mscorlib (mscorlib.dll 内)

Dim instance As BinaryReader Dim returnValue As String returnValue = instance.ReadString
読み取った文字列。


BinaryReader は、読み取りが失敗した後にファイルを元に位置に戻しません。
その他の一般的な I/O タスクまたは関連する I/O タスクの例を次の表に示します。
File.AppendText FileInfo.AppendText | |
FileInfo.Length | |
File.GetAttributes | |
File.SetAttributes | |

このコード例は、BinaryReader クラスのトピックで取り上げているコード例の一部分です。
Dim binReader As New BinaryReader( _ File.Open(fileName, FileMode.Open)) Try ' If the file is not empty, ' read the application settings. If binReader.PeekChar() <> -1 Then aspRatio = binReader.ReadSingle() lkupDir = binReader.ReadString() saveTime = binReader.ReadInt32() statusBar = binReader.ReadBoolean() Return End If ' If the end of the stream is reached before reading ' the four data values, ignore the error and use the ' default settings for the remaining values. Catch ex As EndOfStreamException Console.WriteLine("{0} caught and ignored. " & _ "Using default values.", ex.GetType().Name) Finally binReader.Close() End Try
BinaryReader binReader = new BinaryReader(File.Open(fileName, FileMode.Open)); try { // If the file is not empty, // read the application settings. if(binReader.PeekChar() != -1) { aspectRatio = binReader.ReadSingle(); lookupDir = binReader.ReadString(); autoSaveTime = binReader.ReadInt32(); showStatusBar = binReader.ReadBoolean(); } } // If the end of the stream is reached before reading // the four data values, ignore the error and use the // default settings for the remaining values. catch(EndOfStreamException e) { Console.WriteLine("{0} caught and ignored. " + "Using default values.", e.GetType().Name); } finally { binReader.Close(); }
BinaryReader^ binReader = gcnew BinaryReader( File::Open( fileName, FileMode::Open ) ); try { // If the file is not empty, // read the application settings. if ( binReader->PeekChar() != -1 ) { aspectRatio = binReader->ReadSingle(); lookupDir = binReader->ReadString(); autoSaveTime = binReader->ReadInt32(); showStatusBar = binReader->ReadBoolean(); return; } } // If the end of the stream is reached before reading // the four data values, ignore the error and use the // default settings for the remaining values. catch ( EndOfStreamException^ e ) { Console::WriteLine( "{0} caught and ignored. " "Using default values.", e->GetType()->Name ); } finally { binReader->Close(); }
BinaryReader binReader = new BinaryReader(File.Open(fileName, FileMode.Open)); try { // If the file is not empty, // read the application settings. if ( binReader.PeekChar() !=-1 ) { aspectRatio = binReader.ReadSingle(); lookupDir = binReader.ReadString(); autoSaveTime = binReader.ReadInt32(); showStatusBar = binReader.ReadBoolean(); } } // If the end of the stream is reached before reading // the four data values, ignore the error and use the // default settings for the remaining values. catch(EndOfStreamException e) { Console.WriteLine("{0} caught and ignored. " + "Using default values.", e.GetType().get_Name()); } finally { binReader.Close(); }

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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