Introduction

We can use Microsoft SOAP protocol to transfer any files between client and server.It's easy through firewall and also it cross flatform.

Background

I was going to develop an mobile software on pocket pc,but I found there were tiny resouces to use on mobile operating system.finally,I was finding Web services can solve the problem.

Using the code

There are two parts on the sample which included: Windows client and Webservice server code.

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace www.treaple.com
{
    class TransferFile
   {
       public TransferFile() { }

        public string WriteBinarFile(byte[] fs, string path, string fileName)
        {
            try
            {
                MemoryStream memoryStream = new MemoryStream(fs);
                FileStream fileStream = new FileStream(path + 
fileName,  FileMode.Create);
                memoryStream.WriteTo(fileStream);
                memoryStream.Close();
                fileStream.Close();
                fileStream = null;
                memoryStream = null;
                return "File has already uploaded successfully。";
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }

        /// 
        /// getBinaryFile:Return array of byte which you specified。
        /// 
        /// 
        /// 
        public byte[] ReadBinaryFile(string path,string fileName)
        {
            if (File.Exists(path + fileName))
            {
                try
                {
                    ///Open and read a file。
                    FileStream fileStream = File.OpenRead(path + fileName);
                    return ConvertStreamToByteBuffer(fileStream);
                }
                catch (Exception ex)
                {
                    return new byte[0];
                }
            }
            else
            {
                return new byte[0];
            }
        }

        /// 
        /// ConvertStreamToByteBuffer:Convert Stream To ByteBuffer。
        /// 
        /// 
        /// 
        public byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)
        {
            int b1;
            System.IO.MemoryStream tempStream = new System.IO.MemoryStream();
            while ((b1 = theStream.ReadByte()) != -1)
            {
                tempStream.WriteByte(((byte)b1));
            }
            return tempStream.ToArray();
        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace www.treaple.com
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        //define and Initialize object 
        private GetImage.Service getImage = new GetImage.Service();
        private TransferFile transferFile = new TransferFile();

        private void BtnOpen_Click(object sender, EventArgs e)
        {
            openFileDialog1.InitialDirectory = "C:/";
            openFileDialog1.Filter = "All 
Files|*.*"; //"All Files|*.*|Bitmaps|*.bmp|GIFs|*.gif|JPEGs|*.jpg";
            openFileDialog1.FilterIndex = 2;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
           {
                txtUpPath.Text = openFileDialog1.FileName;
            }
        }
        private void BtnUploadFile_Click(object sender, EventArgs e)
        {
            MessageBox.Show(getImage.UploadFile(
transferFile.ReadBinaryFile(this.txtUpPath.Text, 
this.txtUpName.Text), this.txtUpName.Text));  
        }

        private void BtnDownloadFile_Click(object sender, EventArgs e)
        {
            MessageBox.Show(transferFile.WriteBinarFile(
getImage.DownloadFile(txtDownName.Text.Trim()), 
this.txtLocalPath.Text, this.txtLocalName.Text));
        }

        private void linkLabel1_LinkClicked(
object sender, LinkLabelLinkClickedEventArgs e)
        {
            System.Diagnostics.Process.Start("http://www.treaple.com");
        }

        private void linkLabel2_LinkClicked(
object sender, LinkLabelLinkClickedEventArgs e)
        {
            System.Diagnostics.
Process.Start("http://www.treaple.com/Contact_Us.html");
        }
    }
}



//Server:




using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace [url]www.treaple.com[/url]

    class TransferFile
    {
        TransferFile() { }

        private string WriteBinarFile(byte[] fs, string path, 
string fileName)
        {
            try
            {
                MemoryStream memoryStream = new MemoryStream(fs);
                FileStream fileStream = new FileStream(
path + fileName, FileMode.Create);
                memoryStream.WriteTo(fileStream);
                memoryStream.Close();
                fileStream.Close();
                fileStream = null;
                memoryStream = null;
                return ("File has already uploaded successfully");
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }

        /// 
        /// getBinaryFile return array of byte which you specified
        /// 
        /// 
        /// 
        public byte[] ReadBinaryFile(string path,string fileName)
        {
            if (File.Exists(path + fileName))
            {
                try
                {
                    ///Open and read a file
                    FileStream fileStream = File.OpenRead(path + fileName);
                    return ConvertStreamToByteBuffer(fileStream);
                }
                catch (Exception ex)
                {
                    return new byte[0];
                }
            }
            else
            {
                return new byte[0];
            }
        }

        /// 
        /// ConvertStreamToByteBuffer convert Stream To ByteBuffer
        /// 
        /// 
        /// 
        public byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)
        {
            int b1;
            System.IO.MemoryStream tempStream = new System.IO.MemoryStream();
            while ((b1 = theStream.ReadByte()) != -1)
            {
               tempStream.WriteByte(((byte)b1));/
            }
            return tempStream.ToArray();
        }
    }
}