C# Corner

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  • Read Microsoft Access Database in C#Jan 01, 2000. How to connect and read data from a Microsoft Access (.mdb) database using ADO.NET and C#.
  • Shuffle Game for BeginnersJan 05, 2000. This code sample is a GDI+ shuffle game aimed for beginners. Attached zip file includes the exe and the Shuffle.cs file.
  • FileDownloader : Download files using HTTPJan 10, 2000. This application contains a Form and a Class module . From Form we create a thread which execute the procedure to handle the NET download. This application can be enhance to do more down load as in Download manager by creating more threads.
  • Use C# to write comments and documentationJan 12, 2000. Comments and Documentation is one of the most hated tasks by programmers. By using C# programmers can can automatically builds the documentation and comments in the code. This documentation is a XML file which is more or less self explanatory.
  • Read a file using C#Jan 15, 2000. This program just demonstrate the use of FileStream & StreamReader.
  • Meal Scheduler in C#May 04, 2000. In this application once you enter your meal timings. A message box will appear on the screen while you are working and remember you about your meal with light sound.
  • Graphics Animation SampleMay 16, 2000. After finishing a text program (lottery) its time for some fun. Everytime a have to work with a new language.I write a small program to bounce some balls in a box.
  • CSDownloadURL : Download Contents of a Web PageDec 03, 2000. CSDownloadURL is a class which has two functions - SetURL and DownloadURL. The set URL sets the current URL and GetDownload downloads the URL contents and returns its contents in a string.
  • Creating an Empty Project using VS.NETDec 04, 2000. This tutorial guides you towards your first C# Empty project step by step. After that I'll show you how to add a class to the project and few members to the class and call this class members from the main method.
  • Tutorial: Creating C# Class Library (DLL) Using Visual Studio .NETDec 09, 2000. This step-by-step tutorial shows you how to create a class library (DLL) in Visual Studio .NET.
  • FileStream : Read or Write Data StreamsDec 13, 2000. FileStream class can be used to read/write data to a file with the help of StreamReader and StreamWriter classes.
  • Browse or Open a FileDec 15, 2000. This sample code show you how to use OpenFileDialog class to open or browse a file.
  • ProgressBar in C#Jan 10, 2001. Attached sample file shows how to use progress bar...
  • SmtpMail and Mail Message : Send Mails in .NET Jan 12, 2001. You can use SmtpMail and MailMessage to send mails in .NET.
  • Using ListViews in C#Jan 18, 2001. As a Visual C++ user for 10 years I can say that Microsoft deserves praise for their new ListView class. The MFC ListView class was, well, unpleasant to use. C# makes life a bit easier with a richer property and method set for ListViews. Also, you can now, set the ListView to select an entire row in report mode, something that in Visual C++ you had to write a whole custom ListView control to do. Note also the nice grid lines.
  • Database Explorer : Part 2Jan 22, 2001. Attached is a C# program which is a enhanced version of the previous article on ADO.NET.
  • ADO.NET Database Explorer with Query Analyzer : Part 3Jan 24, 2001. This is the part three of the Article Database Explorer. This parts adds some more and valuable functionality.
  • Timer in C#Jan 26, 2001. An article with sample project explains how to work with the Timer control in C# and .NET to write to a text file after few seconds.
  • FileSharing Server in C# and .NETFeb 01, 2001. The server acts as a File Sharing Server, it listens for multiple clients to connect to it. The Clients have a option to either Download any of the Files available with the server for download.
  • ADODataReader- Writing DataSets to XMLFeb 04, 2001. This file uses ADODataReader and other objects to write DataSets to XML and filling data from the XML files.
  • Implementing Delegates in C#Feb 04, 2001. The Zip file contains two projects. One is VB.Net and the other is C#. Each project is an example of the same use of a delegate. A base class is derived and the delegate calls a method on several classes derived from the base class.
  • Directory Picker in C#Feb 07, 2001. A directory tree control let you select files or directories from any file structure on your computer system.
  • Horoscope Web ServiceFeb 08, 2001. An article talks about web services and how to develop them using .NET.
  • Copying and Pasting on Clipboard using C#Feb 23, 2001. If you use CTRL+C, some data or files are copied to a system clipboard and stored in system memory and when you use CTRL+V, the data is copied back to wherever you paste it. The Clipboard class provides functionality to place and retrieve data from the system clipboard. Usually
  • Using the ref ParameterMar 06, 2001. The ref keyword on a method parameter causes a method to refer to the same variable that was passed as an input parameter for the same method. If you do any changes to the variable, they will be reflected in the variable.
  • Using the out ParameterMar 07, 2001. Did you ever need your method return more than one value? The out keyword can be used to do the same.
  • Testing .Net Components Using NUnitMar 08, 2001. Write unit tests before starting development". Writing test allows me to see immediate results of every code change.
  • Effective C#: Working with StringsMar 12, 2001. Using string might degrade the performance of your application. This article explains about what precautions you should take when you are going to use strings in your application.
  • Using Transforms with GDI+ in C#Mar 15, 2001. Transforms are matrices that allow you to rotate and translate your graphics shapes. In this example we are going to rotate a very powerful element in C# called the GraphicsPath.
  • Write Relational Data to an XML FileMar 15, 2001. This article shows you how you can write data from a database to an XML file using DataSet.
  • Mail Merge ProgramMar 16, 2001. This is a simple mail merge program. This program reads from 3 different text files (by default) and merge all the info to produce mail documents.
  • Mail Merge Program - Part 2Mar 21, 2001. This is a simple mail merge program (Part 2). This program reads from the access database (by default) from a specified table.
  • Simple Web File DownloadMar 23, 2001. This is a simple program that shows how to download files from the web and save them. The program uses the HttpWebRequest and HttpWebResponse classes to request and retrieve the requested file.
  • Write XML in C#Mar 27, 2001. In this article, I will show you how to use XmlTextWriter class to create an XML document and write data to the document.
  • Reading XML FilesMar 28, 2001. In this article, I will show you how to use the XmlTextReader class to read an XML document and write data to the console.
  • Using Delegates to Choose Right FunctionApr 01, 2001. The need to call different class method based on some string passed to class is an old problem.
  • Web Request ClassApr 04, 2001. This is a simple application that the gets the source of a webpage via the WebRequest Object.
  • Writing Secure Code using C#Apr 06, 2001. Code access security is a mechanism that grants/denies access to resources within a method call. For example, code written by a person may be allowed to write to the disk while code from another one may be forbidden from accessing the disk. This control can be enforced even if the code written by both of them is used within a single application
  • Invoking Web Method from one Web Service to AnotherApr 10, 2001. In this article I will show you how to connect a web service from another.
  • File Merger and Splitter in C#Apr 10, 2001. This program can break up a large file into several files AND merge those files back into one single large file.
  • Assemblies : The Ins and Out : Part IApr 13, 2001. In Part 1, I will cover what exactly an assembly is, and what an assembly contains.
  • Assemblies : The Ins and Out : Part IIApr 16, 2001. In this part, I will discuss both Private and Shared assemblies and how to create a "Shared Assembly".
  • Connecting to a Text file using ADO.NET Apr 20, 2001. A simple step by step tutorial shows you how to connect to a text file using ADO.NET and C#..
  • Assemblies : The Ins and Out : Part IIIApr 20, 2001. In this part I will discuss in more detail than Part 2, the available utilities for manipulating assemblies.
  • Understanding How Assert Effects SecurityApr 25, 2001. Assert is a security action that is evaluated at run time. Code Access Permission classes and Permission Sets support a method called Assert. Using the Assert method to control access to resources or actions will allow your code to perform actions that it normally has permission to perform and will allow other callers up stream in the call stack to have access that they would not normally have.
  • Reading XML File using XmlDocumentApr 26, 2001. In this article Reading XML File using XmlDocument.
  • Find Files in C#May 01, 2001. I have developed a small application in c#, which helps in searching u'r hard disk for files of the desired extention.
  • Wireless Model : How Does It Work?May 09, 2001. The browser sends an HTTP request to the Web server, which interprets the request and determines which resources to retrieve or execute. If the URL specifies a file, then the server sends it back.
  • Word Pad in C#May 11, 2001. This application explores the Rich Text control in C#,its properties and methods. Explains the usage of common dialog boxes File open, File save and Font dialog box.
  • Serializing Objects in C#May 14, 2001. In simple words serialization is a process of storing the object instance to a disk file. Serialization stores state of the object i.e. member variable values to disk. Deserialization is reverse of serialization.
  • FTP Explorer in C#May 21, 2001. I have developed a GUI based FTP client application. This takes connection information and populates folder and files in treeview and listview respectively.
  • Mobile Fun with XMLMay 24, 2001. Here is something really wonderful in Mobile field .This example is for authenticating the Mobile Users against his settings stored in XML file. This is really good where all the ease of XML is applied. Function open the XML file and particular node data validate it against user inputs and do the specified.
  • Graphics Animator in C#May 26, 2001. This program will generate a html page with animated gif. You just need at least 2 gifs and use the program to set the time to display each image.
  • Properties in C#: New Cover on old book Jun 06, 2001. Properties are accessor methods whose job is to retrieve and set the values of fields.
  • The out and ref Paramerter in C#Jun 12, 2001. The out and the ref parameters are used to return values in the same variables, that you pass an an argument of a method. These both parameters are very useful when your method needs to return more than one values.
  • Virchk.cs: A C# file Scan Utility for Generating MD5 Signature FootprintsJun 13, 2001. Virchk.cs is a file scanner utility, which traverses the files in a directory and all it's sub directories, to generate a MD5 hash signature footprint of the targeted extensions file.
  • Using ref and out ParameterJun 20, 2001. When we pass a parameter as ref to a method, the method refers to the same variable and changes made will affect the actual variable.
  • What & Why : Properties :: Part 1Jun 26, 2001. If you were programming in C or C++ before coming to C#, you'll be a little bit confused about properties.
  • Time TickerJun 26, 2001. Graphics Class encapsulates a GDI+ drawing surface. The FromHWND method is used to create a new instance of the Graphics class from a window handle. Clear method fills the entire drawing surface with the specified RGB color by using Color class. DrawString method draws a string using Font and SolidBrush classes.
  • What & Why : Properties :: Part 2Jul 09, 2001. In the part 1 of this series, I discussed about the get method of the properties, with the help of which you can make your variable so that nobody can modify the value of the variable.
  • PDF File GeneratorJul 26, 2001. PDF documents are the now a days is standard in Documents Exchange over the internet,as these documents are more or less platform independent and can be viewed on virtually any platform without any formatting or changes in the file structure.
  • Post in Mobile FormsJul 27, 2001. Till now whatever we are doing is in single page and the traversing between forms take place only in a single Page. If you Remember Something of WML there our most effective funda is posting from one form to other.
  • Generating XML from SQL databaseJul 30, 2001. Some Days Back i posted the article dealing XML as a Middle tier but i guess the People didn't get the clear funda.
  • Using WebRequest and WebResponse classesJul 31, 2001. Downloading and uploading data from the web has been a very common programming practice these days.
  • Compute Feature of DataTableAug 01, 2001. The following code is for implementing least known feature of DataTable Compute() method.
  • Service ExplorerAug 06, 2001. This program manages services running in your computer. You can use the GetServices method on the ServiceController class to retrieve a list of the services on a particular computer.
  • Drawing With no OnPaint MethodAug 09, 2001. In this sample example, I draw GDI+ objects on button click.
  • Simplest way to Create and Deploy Web ServicesAug 20, 2001. This article explains how to create and deploy a simple Web Service.
  • MP3 IndexerAug 20, 2001. Mp3Indexer searches for existing Mp3 files on a given path, and generates a report in XML/XSL.
  • Web Services between .NET, Java and MS SOAP Toolkit: Part 2Aug 24, 2001. This second article in this series dedicated to Web services comes as a sequel to the first one in which I started to tell you how you could build different kind of clients and services using MS SOAP Toolkit, Apache SOAP for Java and .NET Framework.
  • File Info on Mobile Aug 30, 2001. Here is an example of Accessing the Information in a File to be given to Mobile User.
  • Advertising on MobileAug 30, 2001. Finally,its possible to advertise on your mobile phones. Mobiles toolkit provides an add rotator control very similiar to the ad rotator control for the Web. This control will disply the Advertisement in the random manner picking from the XML File.
  • Number to Currency ConvertorSep 03, 2001. The attached Num2Cur.cs file converts number to currency up to 999,999,999,999.9999 i.e (999 billion).
  • Live News feed For Mobile SiteSep 05, 2001. Current News are read from a text file, which is being updated regularly after certain interval time.
  • Skinned Mesh Viewer v2.2Sep 11, 2001. A Windows forms application allows you to load a Direct-X file and view its hierarchy structure.
  • Web Browser in C# and VB.NETSep 11, 2001. This article explains how to add and web browser ActiveX to your project to developer your own customized web browser.
  • using Array Class and IEnumeration in C#Sep 14, 2001. This article illustrates the usage of Array class and IEnumerator. Array class Provides methods for creating, manipulating, searching and sorting arrays, thereby serving as the base class for all arrays in the common language runtime.
  • Playing with StringsSep 18, 2001. This program explores the String class and its various methods. With this you will be able to initialize strings using different constructors and use them. To see how the methods of the 'String' class work, see the following code.
  • Enumerators in C#Sep 18, 2001. Sample example shows you how to use enumerators in C#.
  • GUI Based Opinion PollSep 26, 2001. This is a article on how to create a opinion poll in C#. It creates a Text file on your c drive storing the voting parameters in it.
  • Image Shuffler Game in C#Oct 01, 2001. This game asks for a Image file to be Opened When the file is opened and shuffle button is clicked the image will be Shuffled ie rotated clockwise the task is rearrange the image in the Correct order using the button provided.
  • Uploading and Downloading Web FilesOct 05, 2001. This program is for beginner, shows how to use web client class to Download and upload file from the Internet and how to save them to disk. Download or upload file can be done using Method DownLoad Or UpLoad.
  • Abstract Classes And MethodsOct 08, 2001. This is a detailed analysis of Abstract classes and methods in C# with some concrete examples.
  • File Uploading using XMLOct 09, 2001. This application is in ASP.NET which will allow you to upload images to an XML file which serves as the database for the uploaded files.
  • Enhance Batch File Functionality With C# Application : Part IOct 12, 2001. Batch (.bat or .cmd) file has its rich set of commands and processing directives.
  • Method Parameters in C#Oct 15, 2001. This article describes different method parameters such as value parameters, reference parameters, output parameters, and parameter arrays.
  • TextReader and TextWriter in C#Oct 16, 2001. This article covers the information of how to read or write (Unicode) character based data through TextReader and TextWriter.
  • Web services with Language InteroperabilityOct 18, 2001. A web service in general is a way of exposing the properties and methods through the Internet In other words, it's an URL-addressable resource that programmatically returns information to clients who want to use it.
  • Pointers in C#Oct 25, 2001. C# also supports pointers in a limited extent. A pointer is nothing but a variable that holds the memory address of another type. But in C# pointer can only be declared to hold the memory address of value types and arrays.
  • Inheritance and PolymorphismOct 29, 2001. By using the concept of inheritance, it is possible to create a new class from an existing one and add new features to it.
  • Mapping Objects to Relational DatabasesNov 01, 2001. The application generates C# Class files for each table in a relational database. I have used Mysql and ODBC.NET for this project. The application only supports MySQL right now.
  • Charting in GDI+Nov 07, 2001. Here is an example of creating simple charts using GDI+ commands in C#. I have used the random class to create 5 random percentage values. I then use GDI+ to plot these values on a chart.
  • Creating a User Control: .NET Toggle ControlNov 16, 2001. This is a C# User Control which re-creates the toggle used by XML, HTML, etc. files in the .NET Developer Studio. Just compile the control and drag it onto a form from the Windows Form Toolbox.
  • Creating and Using ResourcesNov 16, 2001. In this article, I will give you a small example of how to add and use resources.
  • Monitoring File System using FileSystemWatcher Class - Part 2Nov 26, 2001. In Part 1, we have seen how to use FileSystemWatcher class. Today I' m giving an example to monitor your file system.
  • How To Open and Read an Excel Spreadsheet into a ListView in .NETNov 26, 2001. The Interoperability services make it very easy to work with COM Capable Applications such as Word and Excel.
  • Monitoring File System using FileSystemWatcher Class - Part 1Nov 27, 2001. In this article, I am explaining you how to use FileSystemWatcher class. In part 2, a sample application, which helps you to monitor a specified directory.
  • Factory Patterns in C#Dec 10, 2001. The FACTORY METHOD PATTERN comes under the classification of Creational Patterns. The creational patterns deals with the best way to create objects.
  • Graphics Programming in C#Dec 26, 2001. The new improved version of GDI is called GDI+. The .NET framework provides a rich set of classes, methods and events for developing applications with graphical capabilities.
  • NUnit for people who can't workJan 02, 2002. In this lesson I will show how to numerically solve algebraic and ordinary differential equations, and perform numerical integration with Simpson method.

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