ASP.NET Tutorial/File Directory/Binary
Reading and writing binary data (C#)
<source lang="csharp">
<%@ Page Language="C#" %> <%@ Import Namespace="System.IO" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
BinaryWriter binarywriter = new BinaryWriter(File.Create(@"Data.dat"));
binarywriter.Write("a string");
binarywriter.Write(0x12346789abcdef);
binarywriter.Write(0x12345678);
binarywriter.Write("c");
binarywriter.Write(1.5f);
binarywriter.Write(100.2m);
binarywriter.Close();
BinaryReader binaryreader = new BinaryReader(File.Open(@"Data.dat", FileMode.Open));
string a = binaryreader.ReadString();
long l = binaryreader.ReadInt64();
int i = binaryreader.ReadInt32();
char c = binaryreader.ReadChar();
float f = binaryreader.ReadSingle();
decimal d = binaryreader.ReadDecimal();
binaryreader.Close();
}
</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
</form>
</body> </html></source>
Reading and writing binary data (VB)
<source lang="csharp">
<%@ Page Language="VB" %> <%@ Import Namespace="System.IO" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Dim binarywriter As New BinaryWriter(File.Create("Data.dat"))
binarywriter.Write("a string")
binarywriter.Write(&H12346789ABCDEF)
binarywriter.Write(&H12345678)
binarywriter.Write("c"c)
binarywriter.Write(1.5F)
binarywriter.Write(100.2D)
binarywriter.Close()
Dim binaryreader As New BinaryReader(File.Open("Data.dat", FileMode.Open))
Dim a As String = binaryreader.ReadString()
Dim l As Long = binaryreader.ReadInt64()
Dim i As Integer = binaryreader.ReadInt32()
Dim c As Char = binaryreader.ReadChar()
Dim f As Double = binaryreader.ReadSingle()
Dim d As Decimal = binaryreader.ReadDecimal()
binaryreader.Close()
End Sub
</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
</form>
</body> </html></source>
