Question

When I add my WebService I started getting all these errors:

‘Stream’ is an ambiguous reference between ‘System.IO.Stream’ and ‘MultiSelectFileUploader.ServiceReference.Stream’

This wasn’t happening when all I had in there was the GetFiles(). And I can go ahead and change my Streams to System.IO.Stream, but then I get the error that it isn’t a ServiceReference.Stream when I try to pass to the UploadFiles(). Thanks for the assitance.

Here’s my WebService…

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.IO;

namespace MultiSelectFileUploader.Web
{
    /// <summary>
    /// Summary description for FileService
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    // [System.Web.Script.Services.ScriptService]
    public class FileService : System.Web.Services.WebService
    {

        [WebMethod]
        public List<string> GetFiles()
        {
            List<string> l = new List<string>();

            foreach (FileInfo fi in (new DirectoryInfo(Server.MapPath("~/Temp/")).GetFiles()))
                l.Add(fi.Name);

            return l;
        }

        [WebMethod]
        public void UploadFiles(string filename, Stream file)
        {
            string filepath = AppDomain.CurrentDomain.BaseDirectory + @"Temp\";

            if (!Directory.Exists(filepath)) { Directory.CreateDirectory(filepath); }

            WriteFile(file, File.Create(Context.Server.MapPath("~/Temp/" + filename)));
        }

        private void WriteFile(Stream stream, FileStream fs)
        {
            int bytesRead;
            byte[] buffer = new byte[4096];

            while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) != 0)
                fs.Write(buffer, 0, bytesRead);
        }
    }
}

Answer 1

Streaming is not supported in ASMX services. You have to use WCF.