leer escribir en Binary

Estoy buscando en google, pero no encuentra nada que me pueda ayudar...
Solo espero que alguien me pueda ayudar...

El código que has publicado está difícil de leer.
Acá tienes un tutorial (en inglés pero bastante claro)
http://dotnetperls.com/binaryreader

Sashka

"Paul P. Garcia" escribió en el mensaje de
noticias:

Saludos.
Si me pudieran ayudar en lo siguiente:
private void button1_Click(object sender, EventArgs e)

{

string filename = "C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt";

FileStream stream = new FileStream(filename
,FileMode.Create,FileAccess.Write );

BinaryWriter write = new BinaryWriter(stream);

Int32 mVariable = textBox1.TextLength;

Int32 mVar1;

Byte[] mBuffer = System.IO.File.ReadAllBytes("C:\\Documents and
Settings\mollo\\Escritorio\\coop catedral ultimo.doc");

mVar1=mBuffer.Length;

write.Write(mVariable);

write.Write(textBox1.Text);

write.Write(mVar1);

write.Write(mBuffer);

write.Close();

stream.Close();

textBox1.Text=System.Convert.ToString(mVariable);

}

private void button2_Click(object sender, EventArgs e)

{

FileStream readStream = new FileStream("C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt", FileMode.Open);

BinaryReader readBinary = new BinaryReader(readStream);

Int32 mVar = readBinary.ReadInt32();

byte[] theContent = new byte[mVar];

//Porque me obligo aumentar una posicion en algunas ocaciones 2

readBinary.BaseStream.Position = readBinary.BaseStream.Position + 1;

theContent = readBinary.ReadBytes(mVar);

Int32 mVar1 = readBinary.ReadInt32();

FileStream stream = new FileStream("C:\\Documents and
Settings\mollo\\Escritorio\\word.docx", FileMode.Create,
FileAccess.Write);

BinaryWriter writer = new BinaryWriter(stream);

textBox1.Text = Encoding.ASCII.GetString(theContent);

writer.Write(readBinary.ReadBytes(mVar1));

stream.Close();

writer.Close();

readStream.Close();

readBinary.Close();

}

}

Pense que automatico recuperaba y se movia una posicion.
Porque tengo que aumentar una posicion "readBinary.BaseStream.Position =
readBinary.BaseStream.Position + 1;" ????????
En algunos casos debo aumentar 2 posiciones.
No se cuando aumentar 1 o dos posiciones, porque si no lo habo bien lo
recupero mal...

Hola.
Gracias por tu respuesta...
Mi aplicacion es de prueba, en el estoy usando 2 botones (button1, button2)
y una caja de texto (textBox1)
El codigo completo es:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
string filename = "C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt";
FileStream stream = new FileStream(filename
,FileMode.Create,FileAccess.Write );
BinaryWriter write = new BinaryWriter(stream);
Int32 mVariable = textBox1.TextLength;
Int32 mVar1;

Byte[] mBuffer = System.IO.File.ReadAllBytes("C:\\Documents and
Settings\mollo\\Escritorio\\coop catedral ultimo.doc");
mVar1=mBuffer.Length;
write.Write(mVariable);
write.Write(textBox1.Text);
write.Write(mVar1);
write.Write(mBuffer);
write.Close();
stream.Close();
textBox1.Text=System.Convert.ToString(mVariable);
}

private void button2_Click(object sender, EventArgs e)
{
FileStream readStream = new FileStream("C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt", FileMode.Open);
BinaryReader readBinary = new BinaryReader(readStream);
Int32 mVar = readBinary.ReadInt32();
byte[] theContent = new byte[mVar];
//Porque me obligo aumentar una posicion en algunas ocaciones 2
readBinary.BaseStream.Position = readBinary.BaseStream.Position
+ 2;
theContent = readBinary.ReadBytes(mVar);
Int32 mVar1 = readBinary.ReadInt32();

FileStream stream = new FileStream("C:\\Documents and
Settings\mollo\\Escritorio\\word.docx", FileMode.Create,
FileAccess.Write);
BinaryWriter writer = new BinaryWriter(stream);
textBox1.Text = Encoding.ASCII.GetString(theContent);
writer.Write(readBinary.ReadBytes(mVar1));

stream.Close();
writer.Close();
readStream.Close();
readBinary.Close();
}
}
}

Estudio la informacion que me muestras y te comento. Mientras tanto te estoy
enviado mi aplicacion de prueba, para que lo puedas ver y mostrarme en donde
estoy cometiendo el error.
Gracias.

Hola.
Me voy a responder.
Al parecer el problema estaba que escribia como texto.
Byte[] mBuffer1 = Encoding.GetEncoding(850).GetBytes(textBox1.Text);
Al escribirlo como Byte no tengo problema.

Les paso el codigo completo:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Text;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
string filename = "C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt";
BinaryWriter write = new
BinaryWriter(File.Open(filename,FileMode.Create));
int mVariable = textBox1.TextLength;

Byte[] mBuffer = System.IO.File.ReadAllBytes("C:\\Documents and
Settings\mollo\\Escritorio\\coop catedral ultimo.doc");
int mVar1 = mBuffer.Length;
write.Write(mVariable);
Byte[] mBuffer1 =
Encoding.GetEncoding(850).GetBytes(textBox1.Text);
write.Write(mBuffer1);
write.Write(mVar1);
write.Write(mBuffer);
write.Close();
textBox1.Text=System.Convert.ToString(mVariable);
}

private void button2_Click(object sender, EventArgs e)
{
string filename = "C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt";
BinaryReader readBinary = new
BinaryReader(File.Open(filename,FileMode.Open));
int mVar = readBinary.ReadInt32();
byte[] theContent;
theContent = readBinary.ReadBytes(mVar);
int mVar1 = readBinary.ReadInt32();

string filename1 = "C:\\Documents and
Settings\mollo\\Escritorio\\word.docx";
BinaryWriter writer = new
BinaryWriter(File.Open(filename1,FileMode.Create));
textBox1.Text = Encoding.GetEncoding(850).GetString(theContent);
writer.Write(readBinary.ReadBytes(mVar1));

writer.Close();
readBinary.Close();
}
}
}

;) que bien que pudiste resolverlo!

Sashka

"Paul P. Garcia" escribió en el mensaje de
noticias:#

Hola.
Me voy a responder.
Al parecer el problema estaba que escribia como texto.
Byte[] mBuffer1 = Encoding.GetEncoding(850).GetBytes(textBox1.Text);
Al escribirlo como Byte no tengo problema.

Les paso el codigo completo:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Text;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
string filename = "C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt";
BinaryWriter write = new
BinaryWriter(File.Open(filename,FileMode.Create));
int mVariable = textBox1.TextLength;

Byte[] mBuffer = System.IO.File.ReadAllBytes("C:\\Documents and
Settings\mollo\\Escritorio\\coop catedral ultimo.doc");
int mVar1 = mBuffer.Length;
write.Write(mVariable);
Byte[] mBuffer1 =
Encoding.GetEncoding(850).GetBytes(textBox1.Text);
write.Write(mBuffer1);
write.Write(mVar1);
write.Write(mBuffer);
write.Close();
textBox1.Text=System.Convert.ToString(mVariable);
}

private void button2_Click(object sender, EventArgs e)
{
string filename = "C:\\Documents and
Settings\mollo\\Escritorio\\prueba.txt";
BinaryReader readBinary = new
BinaryReader(File.Open(filename,FileMode.Open));
int mVar = readBinary.ReadInt32();
byte[] theContent;
theContent = readBinary.ReadBytes(mVar);
int mVar1 = readBinary.ReadInt32();

string filename1 = "C:\\Documents and
Settings\mollo\\Escritorio\\word.docx";
BinaryWriter writer = new
BinaryWriter(File.Open(filename1,FileMode.Create));
textBox1.Text =
Encoding.GetEncoding(850).GetString(theContent);
writer.Write(readBinary.ReadBytes(mVar1));

writer.Close();
readBinary.Close();
}
}
}