C# Corner

Resources  
  • 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.
  • Database Explorer : Part 2Jan 22, 2001. Attached is a C# program which is a enhanced version of the previous article on ADO.NET.
  • Verbatim String LiteralsMar 01, 2001. I used to wonder, if I could somehow represent "\" as "\" instead of the escape sequence for black slash ("\\") in string.
  • 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 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.
  • Using Microsoft Message Queues to build Scalable SolutionsApr 12, 2001. This tutorial shows you how to create, send, and received messages using MSMQ from the .NET base class library (System.Messaging) and C#.
  • 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".
  • 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.
  • 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.
  • Time Ticker2Jul 04, 2001. Microsoft had made lot of Changes for Beta2, some of the changes are old Namespace such as System.WinForms modified to System.Windows.Forms. In addition no. of new Namespaces like Microsoft.CSharp, Microsoft.JScript, Microsoft.Vsa etc...
  • Working with ReflectionJul 05, 2001. This article is about the use of reflection package in Csharp. Through Reflection we can get Information about the class.
  • C# foreach loopJul 24, 2001. This article demonstrates how to use foreach loop in C#.
  • strnicmp equivalent in C#Aug 07, 2001. C# equivalent strnicmp function in C language. It accepts two input strings along with the number of positions of chars to compare.
  • Basic Database Operations in ADO.NETAug 08, 2001. This Article will show the basic database transactions select, insert update and delete.
  • CDataService: A Generic Database Access ClassAug 09, 2001. Using a generic database access component in data-aware applications can simply development and separate data tier from business tier.
  • XML GeneratorAug 17, 2001. This article is about advance use of reflection package in Csharp.
  • Super String in C#Aug 20, 2001. Today I realized that I miss those Visual Basic/Visual C++ type operators. You know the ones: Left, Mid, Right.
  • Easter CalculatorAug 22, 2001. This program calculates the dates for Easter for any given year and for an hundred years.
  • C# TokenizerAug 27, 2001. A simple tokenizer in csharp without using regex or MatchCollections.
  • Simple Game Developed in C#Sep 03, 2001. This article contains the code for a simple game developed using csharp. This game is all about arranging the shuffled numbers in ascending order.
  • String Jargon in C#Sep 05, 2001. The following article shows some String functions which are not currently available directly in C#.
  • Regular Expressions Usage in C#Sep 07, 2001. The source code shows how to use Regular Expressions in C#.
  • 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.
  • 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.
  • Query BuilderOct 17, 2001. This application is that of a QueryBuilder in CSharp.This application is for Beta2 SDK version of DotNetFramework.
  • C# and .NETJan 07, 2002. It is sometimes important to know the details of what the compiler does. You may want to know whether constants are evaluated at compile time, or whether constant strings are folded at compile time.
  • Using MS Agent in C#-Part-I(Text To Speech)Jan 15, 2002. This article explains how to use MS Agent to write text-to-speech applications using C# and .NET.
  • 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.
  • Working with Strings in VB.NETFeb 05, 2002. This article is VB.NET version of Working with Strings in .NET using C#.
  • Web/WAP Calender form Harrison LogicFeb 11, 2002. This application provides an updateable web-based calendar that can be viewed from both the Web and through a Mobile device, such as a cellular phone.
  • A Database Web ServiceFeb 22, 2002. This program is a Web service, which contains Web methods that return a dataset after querying a database (any database) given the connection string, the password, the database, the table, the user ID and the SQL commands.
  • Boxing and Performance of CollectionsMar 14, 2002. In this article, I will compare some performance issues of values and references types during boxing and unboxing operations.
  • Printing Invoices using C# and .NETMar 18, 2002. This program can stand improvements but it will get you started in creating an invoice and printing it to the printer.
  • SQL Server Database ExplorerMar 20, 2002. This application connects to a running SQL Server 2000 and displays all the available databases in it.
  • 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.
  • Gene Expression Programming (GEP) in C# and .NETApr 11, 2002. Gene Expression programming (GEP) is a subset of Genetic Algorithms, except it uses genomes whose strings of numbers represent symbols. The string of symbols can further represent equations, grammars, or logical mappings.
  • Communication Between Two Forms: Part-IIJun 24, 2002. Last time I wrote about the possibility of sending a string from a textbox in one form to another.
  • StringBuilder and String ConcatenationOct 01, 2002. String concatenation is one of the commonly used operations among programmers.
  • How to Fill Your Own Dynamic Objects using ADO.NETOct 02, 2002. Sometimes you need to use information of different types like strings, booleans or doubles in the same data structure.
  • More AI...(GEP) Gene Expression Programming in C# and .NETNov 04, 2002. Gene Expression programming (GEP) is a subset of Genetic Algorithms, except it uses genomes whose strings of numbers represent symbols.
  • C# Versions of Java's StringTokernizerJan 13, 2003. Here is another C# version of the Java StringTokenizer Class from the version posted August last year on your site. Given a string and a set of delimiters, the class return an enumeration of substrings based on the delimeters passed in.
  • The "ins" and "outs" of Using Stored Procedures in C#Jan 27, 2003. This article reviews the creation of stored procedures with parameters using the Visual Studio IDE.
  • Strings in C# Part 2Feb 05, 2003. This article discusses how to format, trim and pad strings using the String class. The article also covers the StringBuilder to effectively deal with string such as string concatenation,
  • String in C#Feb 05, 2003. In this article, you will learn how to work with strings in C#. The article discusses the String class, its methods and properties and how to use them.
  • Run Time CompilerFeb 07, 2003. In this article, I am going to discuss how to take a string then compile it and then how you execute it.
  • PERST: A Simple, Fast, Convenient Object Oriented DatabaseMar 05, 2003. PERST is a simple Object-Oriented Database implemented with pure C-Sharp and Java implementations.
  • CSLint: Deadlock Detector for C#Mar 12, 2003. This is a deadlock detector for CSharp programs. It builds a lock graph for the application and searches loops in the graph.
  • Histogram Code in C#Apr 01, 2003. C# histogram class maintains a histogram of input data. Input data is sorted into bins and a count is kept of how many data points fall into each bin.
  • Basics of Extending Your Working Environment in Visual StudioApr 10, 2003. All of us have used Macros in Microsoft Office and Add-ins in Visual Studio 6 and I am very sure all of us have been impressed as well by their power to control their own working environment.
  • Java Like StringTokenizer in C# Jun 11, 2003. The StringTokenizer class is yet another implementation of a java-like StringTokenizer in C#.
  • Part I: Simple Color Syntax Code Editor for PHP written in C# and .NETJun 18, 2003. The Application is a simple Windows Form program that allows you to open and save the text files edited in the rich edit control, as well as print them out. The program takes advantage of a “syntax” text file for PHP which lists the functions and keywords contained in the PHP language.
  • HTTP Handlers for Images in ASP.NETJun 23, 2003. Have you ever thought of streaming thumbnails just by passing query string indicating width or height of thumbnail you need, and most importantly passing those to image itself?
  • MyQueue in C#Jan 09, 2004. This article attempts to explain the how MSMQ can be implemented between two forms and the very basics of message queuing.
  • DataTable in C#Feb 17, 2004. The ADO.NET DataSet is a data construct that can contain several relational rowsets, the relations that link those rowsets, and the metadata for each rowset. The DataSet also tracks which fields have changed, their new values and their original values, and can store custom information in its Extended Properties collection. The DataSet can be exported to XML or created from an XML document, thus enabling increased interoperability between applications.
  • State Management in Web FormsFeb 18, 2004. This white paper discusses the ways in which the state management can be handled in web forms. State management can be done either on client side or server side as explained below.
  • Oracle Data Provider for .NET : Part IIFeb 20, 2004. Oracle Data Provider for .NET (ODP.NET) is an implementation of a data provider for the Oracle database. ODP.NET uses Oracle native APIs to offer fast and reliable access to Oracle data and features from any .NET application.
  • Formula Generator - A Regular Expression Generator Class in C# and .NETAug 17, 2004. The attached source code is a class - FormulaGenerator, which is a component that interprets and evaluate a string expression
  • Generating Random Number and String in C#Nov 19, 2004. The Random class defined in the .NET Framework class library provides functionality to generate random numbers. This article shows you how you can use this class to generate random numbers and strings and even combination of both.
  • Using ListBox in C#Dec 28, 2004. The source code demonstrates how to use a listbox control in C# - adding, deleting and altering strings.
  • Edit Almost Anything with AgileStudioMar 15, 2005. There are a range of controls available as standard for Windows Forms in VisualStudio .NET 2003. These include TextBox to edit strings, CheckBox to edit booleans and even a DateTimePicker. However there is a vast range of types available in .NET.
  • Convert a Comma Delimited String to an Array in C#Aug 01, 2005. This article shows how to convert an array to a comma delimited string in C#.
  • How do I Convert a String to an Enum Value?Sep 10, 2005. In this How do I, you will learn how to convert a string to an enum value in C#.
  • Convert an Enum to a StringOct 24, 2005. This article shows how to convert an enum value to a string value.
  • Hashtable in C#Nov 14, 2005. Hashtable is useful when you need to store data in a key and value pair. This article shows how to use hashtable in C#.
  • Revised Generic 'T, K' Database ComponentDec 20, 2005. This is the code behind the Generic 'T, K' Database Component.
  • Wrapper Patterns in C#, Part III: The Decorator PatternFeb 15, 2006. Did you ever wish for a superhuman power to be impervious to bullets or travel outside your body? How about the superpower to be able to breathe underwater or fly? Or how about a changing the way you look so you can disguise yourself as anyone, or anything? In this series of four articles, we will travel down the C# rabbit hole and see how it is all possible with some wrapper patterns: Proxy, Decorator, and Adapter.
  • Wrapper Patterns in C#, Part IV: The Adapter PatternFeb 16, 2006. In this series of four articles, we will travel down the C# rabbit hole and see how it is all possible with some wrapper patterns: Proxy, Decorator, and Adapter.
  • The C# Value Type and BoxingFeb 17, 2006. Even though with the .NET framework we don't have to actively worry about memory management and garbage collection (GC), we still have to keep memory management and GC in mind in order to optimize the performance of our applications. One of the things we need to be aware of is how the Common Language Runtime (CLR) deals with references to value types.
  • C# Interface Based DevelopmentMar 06, 2006. When trying to build maintainable, reusable, and flexible C# code, the object oriented nature of C# only gets us 50% of the way there. Programming to interfaces can provide us with the last 50%. Interfaced-based design provides loose coupling, true component-based programming, easier maintainability and it makes code reuse much more accessible because implementation is separated from the interface.
  • Add some elegance to your code using C# ListMar 31, 2006. A short and to-the-point tutorial that demonstrates how to sort and search using List in C#.
  • C# Defensive Event Publishing Using InterfacesApr 03, 2006. This article explains how to use interfaces for C# Defensive Event Publishing.
  • Top 10 Reasons to Switch from Java to Visual C#Jun 03, 2006. This article details the major reasons for Java programmers to consider switching from the Java language to Visual C#.
  • Server.Transfer : Passing Values from One Page to Another PageJun 19, 2006. Some times, we want to pass values from one page to another page. There are many ways by which we can do this like: by using query string, or session variable, or Server.Transer etc. This article shows you, how to pass values from one page to another page by using Server.Transfer method.
  • Regular ExpressionsJul 05, 2006. The purpose of this article is to build upon the existing pool of regular expression articles by providing an overview of the new regular expression features found in .NET and to offer some guidelines as to when and how to use them.
  • Serializing and Deserializing XML StringJul 20, 2006. In this article we will see how we can serialize a xml sring into an object and vice versa. You can serialize your object to a byte array and can deSerialize the byte array into an object.
  • Encrypting Connection Strings in ASP.Net 2.0Oct 05, 2006. This article describes how to encrypt the connection strings section in ASP.Net 2.0 web.config files and demonstrates the transperancy of using encrypted connection strings in your web application.
  • How to Convert String to Hexadecimal and Vice versaOct 31, 2006. This article shows you how to convert string to hexadecimal and vice versa. I did this program for my smart Card application.
  • Simple Password Encryption ProgramOct 31, 2006. This article shows you how to make a simple password encryption program.
  • Working with HashTable in C# 2.0Nov 13, 2006. We often need to store more than one dimension data in a list and data may not be an integer or string. This article shows how to use the HashTable class to store object type data.
  • C# Introduction to Fuzzy Computing: Part INov 15, 2006. Boolean logic often fails to adequately simulate real-world conditions because things are never simply just black and white (or zeroes and ones) but exist in millions of shades of grey. This article is a brief introduction to the subject of fuzzy computing through demonstration of a few of the core principles using a fuzzy controller.
  • Dynamic Code CompilationNov 30, 2006. This article throws light on how a code can be built dynamically, compiled and run.
  • ASP.Net State Management TechniquesJan 02, 2007. This article gives brief introduction to various state management techniques in ASP.NET.
  • Add a Quick Map to a Windows ApplicationMar 15, 2007. This project demonstrates a quick and easy way to add mapping to a windows desktop application (with an available internet connection) using Google Maps as the basis and source for the map.
  • Hiding the Date in a Date Time Picker ControlMar 26, 2007. This very short article will address an extremely easy way to hide the date value contained in a date time picker control. While the control contains no property that will allow you to hide the current date, nor to set the value of the control to null or an empty string, it is still possible, and even very easy to generate a date time picker control that does not display a date.
  • Regular Expression Usage in .Net EnvironmentApr 19, 2007. This article describes how to use regular expression in .Net.
  • Word automation using C#May 11, 2007. Word Automation through C# is all about programmatically generating the Word Document using C# code. Almost all of the tasks which we perform on word 2003 can be done programmatically using C# or VB.
  • Lotto Program in C#Jul 16, 2007. It is a small Lotto-Program which can help you fill your lotto ticket. It is written in C#.NET 2.0 by using Visual Studio 2005.
  • Introduction to Building a Plug-In Architecture Using C#Sep 10, 2007. In this article we'll take another look at how we can use the state pattern to build a plug-in architecture that will allow us to change the behavior of our application by placing differnt plug-ins into a folder.
  • Parsing Sentences and Building Text Statics in C#Feb 15, 2008. This article describes three approaches for parsing the sentences from a body of text. This demonstration application also describes an approach to generating sentence count, word count, and character count statistics on a body of text.
  • Extending The String ClassMar 17, 2008. This article will show you a technique (new for C# 3.0) that allows you to extend the string class inside the .NET framwork to include your own string methods.
  • Add and handle application settings in the configuration file: Part IIApr 16, 2008. This article tells you how to add connection string using the configuration file itself.
  • Add and handle connection strings in an application configuration file: Part IApr 17, 2008. There are two ways to save data and parameters. In this case we save application parameters like information entered by the user during the installation process.
  • Encrypt and Decrypt Sensitive Metadata Within Your Config file Jun 18, 2008. In a certain cases, metadata embedded within your configuration file is sensitive. In fact, imagine that you develop an application that uses a data base as data source; all information about this data base is located in the configuration file. What if a hacker success to log into your configuration files and obtains the connection string and other metadata about your data base??
  • Power of Yield, Generics and Array in C#Jul 14, 2008. This article tells you an additiional way to get reverse processing of array with help of generics and yield.
  • Auto create database connection string using INI by C# Jul 22, 2008. This article shows how to auto create database connection string using INI by C# .
  • Functions in SQL Server 2005Aug 07, 2008. In this article I am going to explain about some SQL Server 2005 functions with examples. Here are going to discuss about some string functions, numeric functions and date/time functions.
  • Storing and Retrieving Connection Strings in ASP.NET 2.0/3.5 Nov 04, 2008. This article demonstrates how to store database connection strings in Web.config in ASP.NET 2.0/3.5 and retrieve it for creating connection objects.
  • Image Slideshow in WPFNov 17, 2008. In this article, I will create a simple image slideshow using WPF and C#.
  • Saving and Retrieving Web Page Control with SQL Server and C#Dec 18, 2008. This article describes a simple approach to storing, retrieving, and redisplaying web pages.

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