uCertify Articles » MCTS .NET 2.0 http://www.ucertify.com/article Just another WordPress weblog Wed, 04 Nov 2009 00:00:00 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 What is the XmlWriter class? http://www.ucertify.com/article/what-is-the-xmlwriter-class.html http://www.ucertify.com/article/what-is-the-xmlwriter-class.html#comments Mon, 02 Nov 2009 00:00:00 +0000 uCertify 3101211

The XmlWriter class is an abstract class of the System.Xml namespace. It is used to create streams and write data to XML documents. It performs tasks such as writing various documents into one output stream, encoding binary data, and managing, flushing, and closing output stream.

Share/Bookmark]]> http://www.ucertify.com/article/what-is-the-xmlwriter-class.html/feed 0 How to create a custom culture? http://www.ucertify.com/article/how-to-create-a-custom-culture.html http://www.ucertify.com/article/how-to-create-a-custom-culture.html#comments Sun, 25 Oct 2009 00:00:00 +0000 uCertify 4301097

Take the following steps to create a custom culture as follows:

  1. Create the objects of CultureInfo, RegionInfo, and CultureAndRegionInfoBuilder classes as follows:

    Dim INculture As New CultureInfo(”en-IN”)
    Dim INregion As New RegionInfo(”en-IN”)
    Dim Demo As New CultureAndRegionInfoBuilder(”x-en-IN-sample”, _CultureAndRegionModifiers.None)

  2. Add a NumberFormatInfo class object and set the properties as follows:

    Dim Numinfo As NumberFormatInfo()
    Numinfo.CurrencySymbol = “@”
    Numinfo.CurrencyDecimalDigits = 4
    Demo.NumberFormat = Numinfo

  3. Add a DataTimeFormatInfo class object as follows:

    Dim Dateinfo As DateTimeFormatInfo = _New DateTimeFormatInfo()
    Dateinfo.DateSeperator = “/”
    Dateinfo.DayNames = New String() {”Sunday”, “Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”, “Satarday”}

  4. Now, run the application.
Share/Bookmark]]> http://www.ucertify.com/article/how-to-create-a-custom-culture.html/feed 0 How to write text to a newly created data file? http://www.ucertify.com/article/how-to-write-text-to-a-newly-created-data-file.html http://www.ucertify.com/article/how-to-write-text-to-a-newly-created-data-file.html#comments Sun, 25 Oct 2009 00:00:00 +0000 uCertify 4301078

The steps to write text to a newly created data file are as follows:

  1. Implement the System.IO namespace using the following code.

    using System.IO;

  2. Create a FileStream class object and initialize it with a file name.

    FileStream fs = new FileStream(”TestFile.data”, FileMode.Create);
    or
    FileStream fs;
    fs = new FileStream(”TestFile.data”, FileMode.Create);

  3. Create a BinaryWriter object and pass the FileStream object in it.

    BinaryWriter bw = new BinaryWriter(fs);

  4. Write text in the file as follows:

    for(int i=1;i<=10;i++)
       bw.Write((int)i);

  5. Close the FileStream and BinaryWriter stream.

    fs.Close();
    br.Close();

Share/Bookmark]]> http://www.ucertify.com/article/how-to-write-text-to-a-newly-created-data-file.html/feed 0 Tip on dissecting a Web reference. http://www.ucertify.com/article/tip-on-dissecting-a-web-reference-2.html http://www.ucertify.com/article/tip-on-dissecting-a-web-reference-2.html#comments Sun, 11 Oct 2009 00:00:00 +0000 uCertify 4301221

Open the Web references node in the Solution Explorer, and click Show All Files, a tree of items appear under the node.

Share/Bookmark]]> http://www.ucertify.com/article/tip-on-dissecting-a-web-reference-2.html/feed 0 How to read text from a newly created data file? http://www.ucertify.com/article/how-to-read-text-from-a-newly-created-data-file-2.html http://www.ucertify.com/article/how-to-read-text-from-a-newly-created-data-file-2.html#comments Sat, 10 Oct 2009 00:00:00 +0000 uCertify 4301077

The steps to read text from a newly created data file are as follows:

  1. Implement the System.IO namespace using the following code.

    using System.IO;

  2. Create a FileStream class object and initialize it with a file name.

    FileStream fs = new FileStream(”TestFile.data”, FileMode.Open, FileAccess.Read);
    or
    FileStream fs;
    fs = new FileStream(”TestFile.data”, FileMode.Open, FileAcces.Read);
  3. Create a BinaryReader object and pass the FileStream object in it.

    BinaryReader br = new BinaryReader(fs);

  4. Read text from the file.

    for(int i=1;i<=10;i++)
    Console.WriteLine(br.ReadInt32());
  5. Close the FileStream and BinaryReader stream.

    fs.Close();
    br.Close();

Share/Bookmark]]> http://www.ucertify.com/article/how-to-read-text-from-a-newly-created-data-file-2.html/feed 0 How to retrieve information about the paused services? http://www.ucertify.com/article/how-to-retrieve-information-about-the-paused-services-2.html http://www.ucertify.com/article/how-to-retrieve-information-about-the-paused-services-2.html#comments Sat, 10 Oct 2009 00:00:00 +0000 uCertify 4301094

Take the following steps to retrieve information about paused services:

  1. Create a ManagementObjectSearcher class object as follows:

    ManagementObjectSearcher searcher = new ManagementObjectSearcher(”Select * from Win32_Service Where Started =FALSE”);

  2. Create a ManagementObjectCollection class object as follows:

    ManagementObjectCollection collect = searcher.Get();

  3. Display the result as follows:

    foreach(ManagementObject obj in collect)
    Console.WriteLine(” Paused Services “+obj["Caption"]);

Share/Bookmark]]> http://www.ucertify.com/article/how-to-retrieve-information-about-the-paused-services-2.html/feed 0 How to use GzipStream class to compress a file? http://www.ucertify.com/article/how-to-use-gzipstream-class-to-compress-a-file-2.html http://www.ucertify.com/article/how-to-use-gzipstream-class-to-compress-a-file-2.html#comments Sat, 10 Oct 2009 00:00:00 +0000 uCertify 4301114

The steps to use GzipStream class to compress a file are as follows:

  1. Import the following namespaces.

    Imports System.IO
    Imports System.IO.Compression
  2. Provide a file name that is to be compressed as follows:

    Dim filename As String= New String(@”C:Myapp empTestFile.txt”)

  3. Create a FileStream object as follows:

    Dim file As FileStream = New FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read)

  4. Create a buffer as follows:

    Dim buffer(file.Length) As Byte
    Dim count As Integer
    count = file.Read(buffer, 0, buffer.Length)
    file.Close()
  5. Create a MemoryStream object as follows:

    Dim ms As MemoryStream = New MemoryStream()

  6. Create a GzipStream object as follows:

    Dim mycompress As GZipStream= New GZipStream(ms, CompressionMode.Compress, true)

  7. Compress the file.

    mycompress.Write(buffer, 0,buffer.Length)

  8. Close the GzipStream class.

    mycompress.Close()

  9. Display the result.

    Console.WriteLine(”Original size: {0}, Compressed size: {1}”, buffer.Length, ms.Length)

Share/Bookmark]]> http://www.ucertify.com/article/how-to-use-gzipstream-class-to-compress-a-file-2.html/feed 0 How to set Option Explicit / Option Strict / Option Compare in the IDE? http://www.ucertify.com/article/how-to-set-option-explicit-option-strict-option-compare-in-the-ide-2.html http://www.ucertify.com/article/how-to-set-option-explicit-option-strict-option-compare-in-the-ide-2.html#comments Sat, 10 Oct 2009 00:00:00 +0000 uCertify 4301137

Take the following steps to set Option Strict / Option Explicit / Option Compare in the Integrated Development Environment (IDE) :

  1. Click on Tools menu > Options.

  2. Open the Projects and Solutions node.

  3. Select VB Defaults and modify the Option Explicit / Option Strict / Option Compare settings.

Share/Bookmark]]> http://www.ucertify.com/article/how-to-set-option-explicit-option-strict-option-compare-in-the-ide-2.html/feed 0 How to set the Lib Path in the Visual Studio Integrated Development Environment? http://www.ucertify.com/article/how-to-set-the-lib-path-in-the-visual-studio-integrated-development-environment-3.html http://www.ucertify.com/article/how-to-set-the-lib-path-in-the-visual-studio-integrated-development-environment-3.html#comments Sat, 10 Oct 2009 00:00:00 +0000 uCertify 4301141

Take the following steps to set the Lib Path in the Visual Studio Integrated Development Environment:

  1. Select a project in the Solution Explorer. Right click on the Project menu and click Properties.

  2. Click the References tab.

  3. Click the Reference Paths… button.

  4. In the Reference Paths dialog box, enter the directory name in the Folder: box.

  5. Click Add Folder and then click OK.
Share/Bookmark]]> http://www.ucertify.com/article/how-to-set-the-lib-path-in-the-visual-studio-integrated-development-environment-3.html/feed 0 What is Boxing? http://www.ucertify.com/article/what-is-boxing-2.html http://www.ucertify.com/article/what-is-boxing-2.html#comments Fri, 09 Oct 2009 00:00:00 +0000 uCertify 4301007

Boxing is an implicit conversion of a value type to a reference type.

Consider the following declaration of a value type variable:

int test=12345;

The following statement implicitly applies the boxing operation on the variable test:

object obj=test;

This statement creates a reference to an object obj (on the stack) that references a value of the type int (on the heap). This value is a copy of the value-type value assigned to the variable test. It is not necessary to perform the boxing explicitly, as in the following example:

int test=15105;
object obj=(Object) test;

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