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http://www.c-sharpcorner.com/uploadfile/scottlysle/uploadwithcsharpws05032007121259pm/uploadwithcsharpws.aspx
using System;
using System.Data;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;
using System.IO;
namespace Uploader
{
/// <summary>
/// This web method will provide an web method to load any
/// file onto the server; the UploadFile web method
/// will accept the report and store it in the local file system.
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ToolboxItem(false)]
public class FileUploader : System.Web.Services.WebService
{
[WebMethod]
public string UploadFile(byte[] f, string fileName)
{
// the byte array argument contains the content of the file
// the string argument contains the name and extension
// of the file passed in the byte array
try
{
// instance a memory stream and pass the
// byte array to its constructor
MemoryStream ms = new MemoryStream(f);
// instance a filestream pointing to the
// storage folder, use the original file name
// to name the resulting file
FileStream fs = new FileStream(System.Web.Hosting.HostingEnvironment.MapPath
("~/TransientStorage/") +fileName, FileMode.Create);
// write the memory stream containing the original
// file as a byte array to the filestream
ms.WriteTo(fs);
// clean up
ms.Close();
fs.Close();
fs.Dispose();
// return OK if we made it this far
return "OK";
}
catch (Exception ex)
{
// return the error message if the operation fails
return ex.Message.ToString();
}
}
/// <summary>
/// Upload any file to the web service; this function may be
/// used in any application where it is necessary to upload
/// a file through a web service
/// </summary>
/// <param>Pass the file path to upload</param>
private void UploadFile(string filename)
{
try
{
// get the exact file name from the path
String strFile = System.IO.Path.GetFileName(filename);
// create an instance fo the web service
TestUploader.Uploader.FileUploader srv = new
TestUploader.Uploader.FileUploader();
// get the file information form the selected file
FileInfo fInfo = new FileInfo(filename);
// get the length of the file to see if it is possible
// to upload it (with the standard 4 MB limit)
long numBytes = fInfo.Length;
double dLen = Convert.ToDouble(fInfo.Length / 1000000);
// Default limit of 4 MB on web server
// have to change the web.config to if
// you want to allow larger uploads
if (dLen < 4)
{
// set up a file stream and binary reader for the
// selected file
FileStream fStream = new FileStream(filename,
FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fStream);
// convert the file to a byte array
byte[] data = br.ReadBytes((int)numBytes);
br.Close();
// pass the byte array (file) and file name to the web service
string sTmp = srv.UploadFile(data, strFile);
fStream.Close();
fStream.Dispose();
// this will always say OK unless an error occurs,
// if an error occurs, the service returns the error message
MessageBox.Show("File Upload Status: " + sTmp, "File Upload");
}
else
{
// Display message if the file was too large to upload
MessageBox.Show("The file selected exceeds the size limit for uploads.", "File Size");
}
}
catch (Exception ex)
{
// display an error message to the user
MessageBox.Show(ex.Message.ToString(), "Upload Error");
}
}
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