یعنی با این متد کار کردی و مشکل پیدا کردی؟
File.WriteAllBytes(string path, byte[] bytes)
با BinaryWriter و BinaryReader کار کن:
using System;
using System.IO;
using System.Security.Permissions;
// Store and retrieve application settings.
class AppSettings
{
const string fileName = "AppSettings#@@#.dat";
float aspectRatio;
string lookupDir;
int autoSaveTime;
bool showStatusBar;
public AppSettings()
{
// Create default application settings.
aspectRatio = 1.3333F;
lookupDir = @"C:\AppDirectory";
autoSaveTime = 30;
showStatusBar = false;
if(File.Exists(fileName))
{
BinaryReader binReader =
new BinaryReader(File.Open(fileName, FileMode.Open));
try
{
// If the file is not empty,
// read the application settings.
// First read 4 bytes into a buffer to
// determine if the file is empty.
byte[] testArray = new byte[3];
int count = binReader.Read(testArray, 0, 3);
if (count != 0)
{
// Reset the position in the stream to zero.
binReader.BaseStream.Seek(0, SeekOrigin.Begin);
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();
}
}
}
// Create a file and store the application settings.
public void Close()
{
using(BinaryWriter binWriter =
new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
binWriter.Write(aspectRatio);
binWriter.Write(lookupDir);
binWriter.Write(autoSaveTime);
binWriter.Write(showStatusBar);
}
}
public float AspectRatio
{
get{ return aspectRatio; }
set{ aspectRatio = value; }
}
public string LookupDir
{
get{ return lookupDir; }
set{ lookupDir = value; }
}
public int AutoSaveTime
{
get{ return autoSaveTime; }
set{ autoSaveTime = value; }
}
public bool ShowStatusBar
{
get{ return showStatusBar; }
set{ showStatusBar = value; }
}
}
class Test
{
static void Main()
{
// Load application settings.
AppSettings appSettings = new AppSettings();
Console.WriteLine("App settings:\nAspect Ratio: {0}, " +
"Lookup directory: {1},\nAuto save time: {2} minutes, " +
"Show status bar: {3}\n",
new Object[4]{appSettings.AspectRatio.ToString(),
appSettings.LookupDir, appSettings.AutoSaveTime.ToString(),
appSettings.ShowStatusBar.ToString()});
// Change the settings.
appSettings.AspectRatio = 1.250F;
appSettings.LookupDir = @"C:\Temp";
appSettings.AutoSaveTime = 10;
appSettings.ShowStatusBar = true;
// Save the new settings.
appSettings.Close();
}
}
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