C# Corner

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  • Binary Search Using ArrayList Jan 10, 2000. The ArrayList class provide binary search algorithm and more...
  • A Graphics Component in C#Jan 15, 2000. In this example we have an XYGraph Component and a form that uses it.
  • C# IndexerJan 15, 2000. An indexer is a member that enables an object to be indexed in the same way as an array.
  • A GridView Component in C#Apr 05, 2000. This example shows you how I've wrapped a ListView in a UserControl and turned it into a simple grid control.
  • FindType - The GUI Way Ver 01Apr 09, 2000. If you chekced the samples directory that came .Net SDK you probably noticed the FindType example...
  • Using DataList Control in Web FormsJan 12, 2001. This example uses a DataList which contains LinkButton controls, which allows a user to navigate through a list of data.
  • Display data in a Data GridJan 22, 2001. The sample example show you how to use Data Grid to display data in a grid format.
  • Creating your own cool Volume Control using GDI+Jan 23, 2001. In this article, I'll give you an example of creating your own control.
  • 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.
  • Making UI more responsive using ThreadingFeb 12, 2001. This example shows how threads can help us to make User interface more responsive when we have some background jobs.
  • 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.
  • Programming in ADO.NETMar 19, 2001. A simple example shows you how to read a database table in a dataset and display in a list view control.
  • Complex Numbers ClassMar 20, 2001. This small example demonstrates using some of the interesting language elements of the C# language.
  • ADO Vs ADO.NET Web ServiceMar 22, 2001. In this example I'd like to demonstrate one of the most interesting features of the .NET runtime - the concept of Webservices.
  • POP3 AccessMar 29, 2001. This is a follow up to my SMTP example that shows how to access your POP3 server.
  • 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
  • A Complete Virtual Shop Web Service in C#Apr 10, 2001. This is a complete web service example using C#. In this web service, I have build a complete virtual shop to buy and review products.
  • A Lottery Program in C#May 05, 2001. I am learning C# in any spare time I have and instead of diving in and writing a monster program I thought a nice introduction would be good.
  • Regular Expressions ExampleMay 14, 2001. The following example shows the use of Regular Expressions in C#.This program has basic validation scripts for validation easily useable in all programs.
  • Operator Overloading ExampleMay 14, 2001. The code uses the feature of Operator Overloading in C#. It shows how different operators are overloaded and can be used in a easy manner.
  • 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.
  • Validation Contol in Mobile FormJun 04, 2001. In this article i'll be showing the power of Valiation Control which u can use with Mobile Application.There are total six Valiation Control as provided. Here i am showing four of them in this example and the rest two are Valiationsummary and CustomValidator.
  • Digital Watch In C#Jun 04, 2001. GDI+ sample example shows you how to create a Digital Watch.
  • Data Structure Sample ExampleJun 04, 2001. Source code for Data Structure implemetation of Stack, Queue, Doubly linked list and more..
  • C# Language Preprocessor DirectivesJun 05, 2001. This lesson contains C# language preprocessor directives including #if, #else, #define, #undef, #line etc with sample examples.
  • GDI+ Samples: Rectangle, 3D, and EllipseJun 07, 2001. This article has three sample examples on GDI+ - Rectangle, Ellipse, and 3D.
  • Color GuideJun 11, 2001. This Program will generate all the colors that are supported in C# according to the Name.
  • Creating Run-Time Menus in C#Jun 14, 2001. Sample example on how to create runtime menus.
  • Displaying data in a ListBox Web ControlJul 06, 2001. Sample example for how to display data in a ListBox Web control.
  • Using/Debug Option During CompilationJul 15, 2001. This source code below is an an example of how to use /debug option during compilation.
  • Tic Tac ToeJul 16, 2001. TicTacToe is a demonstration of the AI game playing minimax algorithm. The game plays out every possible combination of moves from each position and consequently is unbeatable. This example uses .NET Beta 2 and was written using a text editor.
  • Difference Using Directive and StatementJul 26, 2001. This article explains difference between using directive and using statement with sample example.
  • Text Reader and Text Writer in C#Aug 03, 2001. A detailed tutorial and C# types such as Value and Reference types with sample examples.
  • Difference between Const and ReadonlyAug 05, 2001. The sample example shows the difference between const and readonly.
  • Drawing With no OnPaint MethodAug 09, 2001. In this sample example, I draw GDI+ objects on button click.
  • Get the Place Game in C#Aug 14, 2001. I have written a game in C# called Get the Place.
  • Calculator ExampleAug 14, 2001. Sample program shows you how to create a calculator.
  • Rubber Band Effect in a FormAug 15, 2001. This is an example on how to implement a rubber band effect in Windows forms.
  • Run-Time Menus in C#Aug 20, 2001. The following example demonstrates how to create menus on the fly.
  • WhoIs Sample CodeAug 27, 2001. Sample example shows you how to implement WhoIs...
  • File Info on Mobile Aug 30, 2001. Here is an example of Accessing the Information in a File to be given to Mobile User.
  • Menu Page on Mobile SiteAug 31, 2001. My basic idea to stat this site is to show you a real-world example and how mobile programming can be integrated to a web site. I would try to build this site as useful as I can. If you've got any ideas or suggestions, please don't hesitate to send it to me.
  • A variety of Chart EnginesSep 07, 2001. The original code came from Scott Guthrie’s chart engine example. The differences from original code.
  • 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.
  • Enumerators in C#Sep 18, 2001. Sample example shows you how to use enumerators in C#.
  • IComparable: Under the HoodSep 21, 2001. We now calling Array.Sort() on C# Types such as int, char, string will automatically do sorting based on that type.
  • Abstract Classes And MethodsOct 08, 2001. This is a detailed analysis of Abstract classes and methods in C# with some concrete examples.
  • Hangman: Using GDI+ in ASP.NET ApplicationsOct 11, 2001. This example shows how you can combine GDI+ commands on a web form.
  • Method Parameters in C#Oct 15, 2001. This article describes different method parameters such as value parameters, reference parameters, output parameters, and parameter arrays.
  • 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.
  • Floating FormsOct 31, 2001. This is an example on how to implement a floating window application.
  • Implementing Stacks in C#Nov 06, 2001. With the help of C# we can also implement ADT (Abstract Data Types) with little effort. An example of ADT is a simple stack of integers.
  • 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.
  • Sending Emails Through Outlook using C# and VB.NETNov 09, 2001. In this article I will give you an example of how to add an e-mail to your Microsoft Outlook outbox folder using C# and/or VB.net.
  • Adding Controls to Windows Forms at RuntimeNov 13, 2001. In this example I'll show how one can create and add controls to their Windows Forms at runtime.
  • 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.
  • Understanding the System.Buffer ClassDec 13, 2001. Before we try out something with Buffer class lets understand Buffer class and its Members.
  • Building a 3-Tier Application Using ASP.NetDec 17, 2001. This article explains 3-Tier Architecture and the implementation in an ASP.NET example.
  • Returning an Array Listing using Remote Procedure CallDec 26, 2001. In this article we will create a Web Service that will return an ArrayList of students.
  • Custom FileDialogJan 18, 2002. The purpose of this article is to give a simple example showing how easy it is to create a custom FolderDialog.
  • Hangman Program Using C#Jan 19, 2002. Hangman was created to illustrate several features of C# including GDI+, string manipulation, array processing, using properties, as well as simple creation of objects.
  • Yahtzee Program Using C#: Part IIJan 31, 2002. This is an update of the Yahtzee program for VS 2005. Included in this version is a Game Reset and a High Score Tracker. The Top Ten High Scores are tracked using an Array with sortable components. In this article we will talk about the IComparable interface used to make an object stored in an array sortable.
  • C#RIS : Tetris Game in C#Feb 14, 2002. I have written a Tetris clone that demonstrates how to use off-screen graphics buffering for smooth animation and utilizes a multi-dimensional array approach to designing a game grid. The classes are largely self-explanatory and the techniques are documented in code well enough to explain what is going on.
  • Authenticate Web ServiceMar 04, 2002. In this example we will build a web service that authenticates userid and password from an a very simple MS Access database. This web service exposes only one method to the client.
  • JIT CodingMar 11, 2002. One not so well known feature of .NET platform is possibility to invoke compiler and practically create code and assembly from running instance of application. It is possible to do that in two ways. First one is a bit simpler and involves namespaces System.CodeDom and System.CodeDom.Compiler, second one is more efficient and utilizes namespace System.Reflection.Emit. Since there are very few examples about how to use System.CodeDom.Compiler I will start with it.
  • Returning a DataSet From a Web Services: Step-by-StepApr 01, 2002. This Example Shows how to create a Web service which returns a DataSet object and a Client which displays the DataSet in a Grid.
  • Poorman's Installation program in C# and .NETApr 08, 2002. Installation programs can be quite expensive these days. Although programs such as Wise and InstallShield have fantastic features and are fairly comprehensive, sometimes you just want to do the easy installation of copying and pasting files into a directory and perhaps placing a shortcut in the start menu.
  • Unit Conversion Tool for Pocket PC with Compact FrameworkMay 22, 2002. I have created a Unit conversion tool to calculate conversion from 16 different types.
  • Form Authentication for Mobile ApplicationsMay 28, 2002. In this example we will authenticate mobile web users for our application using Forms Authentication.
  • Determining Windows Users for Web Forms ApplicationsMay 30, 2002. In this example we will see how to determine the identity of the logged in user for an ASP.Net Web Forms using Windows Authentication.
  • Spell Check Web ServiceMay 31, 2002. In this example we will create a Web Service which provides spell check functionality.
  • Redhotqlue C# ArrayObjectJun 20, 2002. Unlike Visual Basic the C# language does not provide a standard mechanism for re-dimensioning (resizing) arrays. This component provides that additional functionality for arrays created in C#.
  • Intellisense: An Example of How to Make ItJul 01, 2002. Auto completing is one way to offer a productive and programmer friendly user interface to programmers and Intellisense feature of Visual Studio .NET is one of them.
  • Create FTP and Web IIS Virtual Directory using C#Jul 03, 2002. In this example we will create a Windows Form Project that will create new FTP and Web IIS Virtual Directories from code based on the name and path specified by the user.
  • Programming C#: Working with Arrays in .NETJul 09, 2002. This article concentrates on arrays in .NET and how you can work with arrays using C# language. Article also covers the Arrays class and its method, which can be used to sort, search, get, and set an array items.
  • Working with Arrays in C#Jul 09, 2002. This tutorial discusses array programming in C# and .NET. It starts with the discussion of simple arrays and then delves into more complex topics such as jagged and multi-dimensional arrays. In the end, it discusses the Array class and it's methods for searching and sorting an array's items.
  • Shell Commands within C#Jul 10, 2002. In this article we will examine a few examples for executing shell commands outside of our program using C#.
  • Using MSIL Code to Close Application ProgrammaticallyJul 18, 2002. You can use MSIL code to call Win32 APIs and one of the simplest example of it is by closing an application programmatically.
  • Mastermind Computer Player using Genetic Algorithms in C#Jul 22, 2002. After writing the Genetic Algorithm Article for implementing a Genetic Algorithm in C#, I tried to think of a good example of how to illustrate a real-world use of Genetic Algorithms to illustrate artificial intelligence.
  • Windows Forms Printer Selection ListJul 30, 2002. In this example we will create a sample windows form containing a combo box which will list the printers installed on the machine on which the program runs. The default printer for the machine is set as the default selection in the combo box.
  • Master-Detail Display using Nested Repeater Web Forms ControlAug 05, 2002. In this example, we will create a web page that displays a formatted view of data with a master detail hierarchy using nested Repeater controls. We will use the Northwind sample for our example. There are many different ways to accomplish this task. We will use data binding and data relations in an effort to get a simple solution.
  • A Virtual Photo Album in C# and .NETAug 05, 2002. This album allows you to drag your images directly from Windows Explorer into the spot you want your picture to occupy. You can also edit the captions by clicking on the labels under the pictures.
  • Master-Detail Display Using Nested Repeater Web Forms ControlAug 05, 2002. In this example, we will create a web page that displays a formatted view of data with a master detail hierarchy using nested Repeater controls. We will use the Northwind sample for our example. There are many different ways to accomplish this task.
  • Code InternationalizationAug 06, 2002. This is a very simple windows application example for localizing the application. Visual studio .NET makes it pretty simple to create localized applications and manage them.
  • Passing Data Between a Windows Form and Dialog BoxesAug 29, 2002. In this example, we will create a windows form application to demonstrate the transfer of data between a windows form and a dialog box displayed from the windows form.
  • Implementing Inheritance in C#Sep 05, 2002. Inheritance is one of the most important characteristic of OOP. In this article, I will explain how to implement the inheritance in C# by explaining through an example.
  • Web Thermometer in C# and .NETSep 13, 2002. The Web Thermometer is a good example for using GDI+.
  • Personalizing Mobile Web ApplicationsSep 16, 2002. In this example, we will personalize the settings for a mobile web application based on the user logged into the site.
  • Platform Invoke Sample - Changing the Desktop WallpaperSep 27, 2002. In this example we will see how to change the Desktop wallpaper by invoking a Windows API function from C#. The Platform Invoke mechanism allows you to access unmanaged functions implemented in dlls.
  • Attributed Programming in .NET using C#Oct 04, 2002. In this article, I illustrate the power of attributed programming by examples that show a modular approach to issues that can crosscut many classes. Attributes will provide exciting software development abstractions in the future.
  • Using Error Provider Control in Windows Forms and C#Oct 08, 2002. In this example we will see how to use the ErrorProvider control in Windows forms to provide validations in Windows Forms and display user-friendly error messages to the user if the validation fails.
  • BlackJackOct 10, 2002. So as a learning experience, I decided to try writing a Blackjack game.
  • Puzzle ControlOct 15, 2002. In this application I had combined the power of C# and AI in order to solve the "puzzle problem".
  • Maze Solver Oct 28, 2002. Solving mazes is one of those problems, at least with the algorithm I've chosen here.
  • Extracting Modules and Component(RSAParameter) from X509Certificate PublicKeyNov 04, 2002. In some applications, it might be necessary to extract the modulus and exponent from the X509Certificate PublicKey. The X509Certificate.GetPublicKey() returns a byte array that contains the ASN.1 Encoding information along with the modulus and exponent as described in the RFC2459.
  • Sorting using MultithreadingNov 13, 2002. This is simple multithreading application that sort integers values in an array.
  • FreeCell Game using Windows FormsNov 14, 2002. FreeCell is an implementation of the FreeCell card game using Windows Forms.
  • Daleks in .NETDec 11, 2002. The other night my girlfriend dragged me down to the NYC Public Library claiming that they had a huge Science Fiction movie section. Admittedly my taste in movies and my wife's taste in movies can vary slightly, however, I was willing to take a chance, given that rentals at the library are free as opposed to $4 at the local video store.
  • COM Interoperability Part 1: Using COM Components in .NET FrameworkJan 02, 2003. In this article we review the concepts & walk-through an example that demonstrates COM interoperability in .NET framework.

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