Today I don't feel like doing anything

Today I don't feel like doing anything...
No, it's not me. It's lyric of "The lazy song", this is nice song I here every morning. In a bad weather day, I decide to get up early everyday and do exercise. I remember for sure I decided it many times, I didn't do it like I want.
Now, it's the first time I found a right things can help me make "dream become true". It's my project management, he sits next to me.
I try to get up early and go to company, start my great word day.
Today is like this. Thank you.

[English everyday] Cannot join in blog at home

Now, I am at home.
Maybe you feel it's funny, I can browse manager page of my blog, but I cannot browse view page. I am an IT man, I find it so many time in the internet and you see I haven't any solution.
I feel quite angrily, quite boring. Then I will come back to study English, I don't think about it again.

 Now, I think about how a person can use English. You can see, in a English country, a silly boy really can hear and talk English in correct. Why I am not? I really found some reasons, maybe I think it defend for my lazy :( Oh, some reasons like:
- I don't live in a English country. Almost people around me communication with Vietnamese.
- I am adult, my experience make me hard to study English. Sometime intelligent is not good :))
- English is difficult study language. Maybe, It have many exception in grammar. Too popular, I mean it's not standard, I hard to hear people in each other country talking with not pure English.
- Why English people are rapidly talking. If you try to compare talking speed with my country, you will see many differences. How I listen to, yes, how I am talking like this.
- The last think, training English is in my country so bad. Focus to grammar, I think it lose right way.
...
Oh, you can help me add more reasons, maybe I forgot them. But I don't this post to complain, it's an action I change myself in study English everyday.

Thank for free time to read it!

[Csharp] Play Audio use winmm.dll

Today, I really early go to my company. It's a nice day.

In this post, I want show you a class C# to play audio use API winmm.dll, here is code snippet:

   1:      public class AudioPlayHelper

   2:      {

   3:          [DllImport("winmm.dll")]

   4:          private static extern long mciSendString(

   5:              string strCommand, StringBuilder strReturn, int iReturnLength, IntPtr hwndCallback);

   6:   

   7:          #region Play Audio

   8:   

   9:          public static void Play(string fileName, bool repeat)

  10:          {

  11:              mciSendString("open \"" + fileName + "\" type mpegvideo alias MediaFile",

  12:                          null, 0, IntPtr.Zero);

  13:   

  14:              mciSendString("play MediaFile" + (repeat ? " repeat" : String.Empty), null,

  15:                            0, IntPtr.Zero);

  16:          }

  17:   

  18:          public static void Play(byte[] embeddedResource, bool repeat)

  19:          {

  20:              ExtractResource(embeddedResource, Path.GetTempPath() + "resource.tmp");

  21:              mciSendString("open \"" + Path.GetTempPath() + "resource.tmp" +

  22:                            "\" type mpegvideo alias MediaFile", null, 0, IntPtr.Zero);

  23:              mciSendString("play MediaFile" + (repeat ? " repeat" : String.Empty),

  24:                            null, 0, IntPtr.Zero);

  25:          }

  26:   

  27:          public static void Pause()

  28:          {

  29:              mciSendString("stop MediaFile", null, 0, IntPtr.Zero);

  30:          }

  31:   

  32:          public static void Stop()

  33:          {

  34:              mciSendString("close MediaFile", null, 0, IntPtr.Zero);

  35:          }

  36:   

  37:          private static void ExtractResource(IEnumerable<byte> res, string filePath)

  38:          {

  39:              if (File.Exists(filePath)) return;

  40:   

  41:              var fs = new FileStream(filePath, FileMode.OpenOrCreate);

  42:              var bw = new BinaryWriter(fs);

  43:   

  44:              foreach (var b in res) bw.Write(b);

  45:   

  46:              bw.Close();

  47:              fs.Close();

  48:          }

  49:   

  50:          #endregion

  51:   

  52:          #region Record

  53:   

  54:          public static void Record()

  55:          {

  56:              mciSendString("open new type waveaudio alias MediaFile", null, 0, IntPtr.Zero);//cannot record mp3

  57:              mciSendString("record MediaFile", null, 0, IntPtr.Zero);

  58:          }

  59:   

  60:          public static void Save(string fileName)

  61:          {

  62:              mciSendString("save MediaFile \"" + fileName + "\"", null, 0, IntPtr.Zero); //extension .wav

  63:              mciSendString("close MediaFile ", null, 0, IntPtr.Zero);

  64:          }

  65:   

  66:          #endregion

  67:      }

Before add this code you need using System.Runtime.InteropServices;
This application will be play mp3 sound and record wav sound by easy call static function.
Hope you enjoy it!

[Csharp] Tip/Trick to select text in TextBox

Today, I write an application to load long text document on TextBox. Working with long text, so I need to create some alternative functions such as: search text, go to line. All function is around how to select text on TextBox. Here is some code snippet to do it:

* Search on textbox: keyword is your input

   1:                  textBox.Focus();                

   2:                  textBox.SelectionStart = index;

   3:                  textBox.SelectionLength = keyword.Length;

   4:                  textBox.ScrollToCaret();

 * Go to line: lineToGo is your input

   1:              textBox.Focus();

   2:              textBox.SelectionLength = 0;

   3:              textBox.SelectionStart = textBox.GetFirstCharIndexFromLine(lineToGo);

   4:              textBox.ScrollToCaret();

* Select all and copy text

   1:              textBox.Focus();

   2:              textBox.SelectAll();

   3:   

   4:              if (string.IsNullOrEmpty(textBox.SelectedText)) return;

   5:              Clipboard.SetText(textBox.SelectedText);

   6:              textBox.Focus();

OK, I think it's so easy and we will meet it many times in code.
Thank to enjoy!

*Update:
Get number of lines of selected text

   1:          private static int GetSelectedLines(TextBox textBox)

   2:          {

   3:              if (textBox.SelectionLength == 0) return 0;

   4:   

   5:              return textBox.GetLineFromCharIndex(textBox.GetFirstCharIndexOfCurrentLine()) -

   6:                     textBox.GetLineFromCharIndex(textBox.SelectionStart);

   7:          }

:)

Beginner with PluralizationServices

Sometime we want to change a word from singular to plural or backward. .NET is a powerful framework provide for our a class call PluralizationServices, so it make we can easy to do it.
Today, I show you some beginner example and some issues I miss when I try to use it. You can find more information in MSDN: http://msdn.microsoft.com/en-us/library/system.data.entity.design.pluralizationservices.pluralizationservice.aspx

For the first, I show you steps to make an example.
 - Create a new C# Console Application project (* Note: you need make .NET Framework 4 or later).
 - After create done, in solution explorer, right click on project name and choose Properties. In Application tab, make sure Target Framework is .NET Framework 4 (is not .NET Framework Client Profile). It is an issue make me waste many time on Google because I can not add reference for project.
 - Next, we add reference, right click on project name, select Add Reference..., in .NET tab, add System.Data.Entity.Design
 - Ok, now write this code:

   1:  using System;

   2:  using System.Data.Entity.Design.PluralizationServices;

   3:  using System.Globalization;

   4:   

   5:  namespace ConsoleApplication1

   6:  {

   7:      internal class Program

   8:      {

   9:          public static string SwitchPluralAndSingular(string word)

  10:          {

  11:              PluralizationService ps = PluralizationService.CreateService(CultureInfo.GetCultureInfo("en-us"));

  12:   

  13:              if (ps.IsPlural(word))

  14:              {

  15:                  return ps.Singularize(word);

  16:              }

  17:              if (ps.IsSingular(word))

  18:              {

  19:                  return ps.Pluralize(word);

  20:              }

  21:   

  22:              return word;

  23:          }

  24:   

  25:          private static void Main(string[] args)

  26:          {

  27:              Console.WriteLine(Program.SwitchPluralAndSingular("Word"));

  28:              Console.WriteLine(Program.SwitchPluralAndSingular("Words"));

  29:              Console.WriteLine(Program.SwitchPluralAndSingular("Child"));

  30:              Console.WriteLine(Program.SwitchPluralAndSingular("Children"));

  31:              Console.WriteLine(Program.SwitchPluralAndSingular("abc"));

  32:              Console.WriteLine(Program.SwitchPluralAndSingular("123"));

  33:              Console.ReadKey(true);

  34:          }

  35:      }

  36:  }

Can you done it?
Enjoy it!
* Update:
You can custom translated words by using:

   1:          private static PluralizationService IntializePluralization()

   2:          {

   3:              var ps = PluralizationService.CreateService(CultureInfo.GetCultureInfo("en-us"));

   4:              ((ICustomPluralizationMapping)ps).AddWord("Die", "Dies");

   5:              ((ICustomPluralizationMapping)ps).AddWord("Range", "Ranges");

   6:              return ps;

   7:          }

:)