IRhetoric - Karsten Januszewski : .NET Framework 2.0 (Whidbey)

MSDN Wiki

karstenj — Thu, 15 Jun 2006 01:14:00 GMT

Wikis are only as good as the contributors, but the new MSDN wiki is already shaping up to be quite good. There isn't any of the .NET 3.0 docs up there yet, but if you going online to get information about .NET 2.0, I'd go here so that you get both the "official" docs and then any community commentary all in one fell swoop.

Passing a preprocessor directive to MSBUILD via the command line instead of #DEFINE in code

karstenj — Tue, 28 Jun 2005 23:46:00 GMT

I recently wanted to pass a preprocessor directive (as in affecting /define in csc.exe) to MSBUILD on the commandline instead of using #DEFINE/#UNDEF in the source code or modifying the configuration properties in VS. (After all, isn't that the idea of directives -- change them from the command line and don't mess with the source code?) Here's how:

Let's say I had in my code:

#if DO_SOMTHING
//do something
#endif

I would call msbuild like this

msbuild /p:DefineConstants=DO_SOMETHING

Beware that msbuild will not rebuild if only the directive changed, so you may also want to add /t:Rebuild

msbuild /p:DefineConstants=DO_SOMETHING /t:Rebuild

WinForms Screen Saver Starter Kit in Whidbey (.NET 2.0)

karstenj — Tue, 07 Jun 2005 19:13:00 GMT

Okay, I'm late to the party on this one, but I just came across the RSS Screen Saver Starter Kit in both the Visual Studio Express SKUs and VS2005. Basically, when opening a new project, there is a "Starter Kit" node inside of which is a "Screen Saver" project. This will create everything you need to get started, with decents documentation too! You can get a WinForms Screen Saver up very quickly.

You can imagine why I'm interested -- time to start cranking out some gnarly Avalon Screen Savers...

FTP Sample Using Whidbey Updated (.NET Framework 2.0 Beta 2)

karstenj — Thu, 12 May 2005 19:20:00 GMT

A few people pointed out that my sample for uploading a bunch of images to an FTP site using Whidbey broke with Whidbey Beta 2, so I fixed it. Basically, there were some semantic changes:

--the FtpMethods enumeration moved to WebRequestMethods.Ftp.*

--the FtpWebRequest.Binary property changed to FtpWebRequest.UseBinary

Now it works again!

FTP Sample Using Whidbey (.NET Framework 2.0 Beta 2)

karstenj — Tue, 30 Nov 2004 22:08:00 GMT

I recently needed to upload a bunch of images via FTP. This gave me a perfect reason to write some code using the new FTP classes in Whidbey. Very nice, I must say. Below is the source code for anyone needing to grab a directory and dump a bunch of files to an FTP site. I write a success and failure log file to cope with an exceptions -- the way I write to the log is a bit clunky, but I was in a hurry!

#region Using directives

using System;
using System.Text;
using System.IO;
using System.Net;
using System.Collections;
#endregion

namespace ImageFTPService
{

class Program
{
  private const string directory = @"";
  private const string server = @"";
  private const string username = @"";
  private const string password = @"";
  private const string log_path_success = @"C:\logs\success.log";
  private const string log_path_fail = @"C:\logs\fail.log";
  private static int errCount = 0;
  static void Main(string[] args)
  {
   DirectoryInfo dir = new DirectoryInfo(directory);
   FileInfo[] infos = dir.GetFiles("*.*");
   bool IsSuccess = true;

   foreach (FileInfo fileInfo in infos)
   {
    if (null != fileInfo)
    {
     IsSuccess = UploadFile(fileInfo);
     if (!IsSuccess)
     {
      errCount = errCount + 1;
      if (errCount > 100)
       break;
     }
    }
   }
   Console.WriteLine("Waiting...");
   Console.Read();
  }

  static bool UploadFile(FileInfo fileInfo)
  {
   bool IsSuccess = true;
   NetworkCredential credentials = new NetworkCredential(username, password);
   string serverAddress = "ftp://" + server + "/Images/";
   FtpWebRequest request = null;
   FtpWebResponse response = null;
   FileStream fr = null;
   try
   {
    request = (FtpWebRequest)FtpWebRequest.Create(new Uri(serverAddress + fileInfo.Name));
   }

   catch (Exception ex)
   {
    using (StreamWriter sw3 = File.AppendText(log_path_fail))
    {
     sw3.WriteLine(fileInfo.Name);
     sw3.WriteLine("-{0}", ex.Message);
    }
    Console.WriteLine("Fail: {0}", fileInfo.Name);
    Console.WriteLine("-{0}", ex.Message);

return false;

   }
   try
   {
    request.Method = WebRequestMethods.Ftp.UploadFile;
    request.Credentials = credentials;
    request.UseBinary = true;
    //read the image into a byte array using a FileStream
    byte[] fileContents = new byte[fileInfo.Length];
    fr = fileInfo.OpenRead();
    fr.Read(fileContents, 0, Convert.ToInt32(fileInfo.Length));
    fr.Close();
    //get the FTP upload stream
    Stream requestStream = request.GetRequestStream();
    //write the btye array to the stream
    requestStream.Write(fileContents, 0, fileContents.Length);
    requestStream.Close();
    response = (FtpWebResponse)request.GetResponse();
    using (StreamWriter sw0 = File.AppendText(log_path_success))
    {
     sw0.WriteLine(fileInfo.Name);
    }
    Console.WriteLine("Success: {0}", fileInfo.Name);
    response.Close();
   }
   catch (Exception e)
   {
    using (StreamWriter sw2 = File.AppendText(log_path_fail))
    {
     sw2.WriteLine(fileInfo.Name);
     sw2.WriteLine("-{0}", e.Message);
    }
    Console.WriteLine("Fail: {0}", fileInfo.Name);
    Console.WriteLine("-{0}", e.Message);
    IsSuccess = false;
   }
   System.Threading.Thread.Sleep(5000);
   return IsSuccess;
  }
}
}