C# Corner

Resources  
  • Add/Remove User Control for C#Jan 18, 2000. A nice feature in the Visual.NET environment is the ability to create User Controls.
  • Yahtzee Program using C#Jan 24, 2000. The Visual C# environment has given the programmer the ability to create applications in RAD mode without the steep learning curve for the C++ programmer. (I do miss templates though!). The above application, yahtzee, is based on a popular poker-like dice game.
  • ColorDialog in C#Dec 21, 2000. A ColorDialog control is used to select a color from available colors and also define custom colors. This article demonstrates how to use a ColorDialog in Windows Forms and C#.
  • Calling a COM Component From C# (Late Binding)Jan 08, 2001. This code sample shows how to call a COM component in .NET framework using C#.
  • The Convert Class : Conversion Made Easy in .NETJan 08, 2001. The Convert class takes care of most of the data type conversions in .NET programming.
  • 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.
  • 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.
  • ADO.NET Database ExplorerJan 20, 2001. The sample connects to the SQL server database and shows you a tree view like interface of all the tables.
  • Get a database table propertiesJan 22, 2001. Get a table properties such as column names, types etc using DataColumn and DataTable.
  • Database Explorer-IVJan 25, 2001. This is version IV of the Database Explorer, which include the support for Access Database with SQL Server.
  • PaintBrush in C# - IIJan 30, 2001. This is a PaintBrush Application. In this Paintbrush user can draw some images and he can save the images in a persistence storage and later time can retrive the images.
  • 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.
  • Boxing and UnboxingFeb 21, 2001. Boxing and Unboxing are fairly new terms introduced in C#. Author explains some concept of them.
  • Reflection in .NETFeb 26, 2001. Refelction is the mechanism of discovering class information solely at run time. Wondering where it would be useful?
  • Deploying Programs in C#Mar 08, 2001. Deploying projects in Visual Studio.NET is fairly straightfoward. Most of the process is automated for you through some convenient wizards so it doesn't require much effort.
  • Loading a Form IconMar 13, 2001. In .NET framework, the Icon class represents a Windows icon, which is a small bitmap image used to represent an object. The icon class is defined in System.Drawing namespace.
  • 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.
  • 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.
  • 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.
  • Compilation and Runtime Execution of a C-Sharp ProgramApr 10, 2001. C-Sharp (C#) is a strongly typed object-oriented programming language designed to give optimum composition of simplicity, expressiveness and performance.
  • Creating a Login User ControlApr 16, 2001. In this article, we have started with an introduction to the UserControl and have learnt to use the ADO+ DataReader.As we seen User Controls simplifies several common Web application scenarios.User Controls allow developers to easily define custom controls using the same programming techniques for writing Web Forms.
  • Defining Custom Entry PointsApr 30, 2001. In this article i am going to demonstrate how we can manipulate the IL code to change the behaviour of how the .NET programme executes.
  • Using .NET Framework Multithreading and GDI+ to Enrich the user experienceMay 04, 2001. This tutorial shows you how to create, send, and received messages using MSMQ from the .NET base class library (System.Messaging) and C#.
  • .NET framework comparison with Java ArchitectureMay 08, 2001. This article outlines Microsoft's proposed standardization of .NET framework in ECMA forum as CLI (Common Language Infrastructure), but the Microsoft documentation refer this as CLR (Common Language Runtime).
  • 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.
  • C# Language Preprocessor DirectivesJun 05, 2001. This lesson contains C# language preprocessor directives including #if, #else, #define, #undef, #line etc with sample examples.
  • Image Viewer in C#Jun 07, 2001. ImageViewer lets you to view images of types bmp, gif, jpeg, ico, wmf, emf. It also allows you to convert images to bmp, gif and jpeg formats. This application illustrates the usage of PictureBox class, Bitmap class etc.
  • C# and its FeaturesJun 09, 2001. C# is a modern, type safe programming language, object oriented language that enables programmers to quickly and easily build solutions for the Microsoft .NET platform.
  • Exception HandlingJun 12, 2001. Exceptions in C# provide a structured, and type-safe way of handling both system level and application level error conditions. The exception mechanism in C# is very similar to that of C++, with a few important differences.
  • .NET Brings The Fun Back to ProgrammingJul 11, 2001. Today, we are all comfortable sitting in front of our high powered computers running graphical user interfaces and compiling code in sophisticated development environments.
  • Exception HandlingJul 21, 2001. Exceptions in C# provide a structured, and type-safe way of handling both system level and application level error conditions. The exception mechanism in C# is very similar to that of C++, with a few important differences.
  • Events and DelegatesJul 26, 2001. Events in C# are based on delegates, the Originator defining one or more callback functions as delegates and the listening object then implements then.
  • Eater Game in C#Jul 31, 2001. This is a simple game written in C# in which the user moves a packman like player around the form and gobbles up red dots. The object is to get all the dots in as quick a time as you can.
  • Compute Feature of DataTableAug 01, 2001. The following code is for implementing least known feature of DataTable Compute() method.
  • 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.
  • NumberBox ASP.NET ControlAug 08, 2001. The NumberBox control is an ASP.NET control, which lets the user only input numerical values.
  • Move Grid PuzzleAug 15, 2001. This is a console based application the user will be prompted for move such as L-Left, R-Right, U-Up, D-Down, E-Exit.
  • Visual MatrixAug 17, 2001. User can easily add ,sub any limit of matrices. Edit boxes are created dynamically.
  • Populating and Editing a DataGrid in ASP.NETAug 17, 2001. I will show here , how to develop DataGrid, which is able to retrieve data from joined tables and editable.
  • 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.
  • Boxing and Unboxing in C#Aug 20, 2001. Boxing and unboxing is a essential concept in C#'s type system. With Boxing and unboxing one can link between value-types and reference-types by allowing any value of a value-type to be converted to and from type object.
  • Button Chaser ProgramAug 29, 2001. Here is a fun program which causes the user to chase a button around the screen.
  • File Info on Mobile Aug 30, 2001. Here is an example of Accessing the Information in a File to be given to Mobile User.
  • Web Control BuliderSep 03, 2001. The attached C# program can be used by users who dont have VS.NET IDE to generate the code for WebControls.
  • 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.
  • Is there any need to Boxing and UnboxingSep 21, 2001. With Boxing and unboxing one can link between value-types and reference-types by allowing any value of a value-type to be converted to and from type object. Boxing and unboxing enables a unified view of the type system wherein a value of any type can ultimately be treated as an object.
  • Oracle Database ConnectivitySep 26, 2001. This is a GUI based data entry application which shows how to add, modify and delete records using Oracle Database.
  • User Control and ReusabilitySep 28, 2001. This article explain, how to create a user control for ASP.NET.
  • Encapsulation in C#Oct 12, 2001. In Object Oriented programming Encapsulation is the first pace. Encapsulation is the procedure of covering up of data and functions into a single unit (called class).
  • Oracle Database ViewerOct 17, 2001. This is a GUI based application which connects to an Oracle database depending upon the DSN, username and password that you provide. It then shows the list of tables on the left hand side in the form of a treeview.
  • Understanding Structures in C#Oct 23, 2001. A structure in C# is simply a composite data type consisting of a number elements of other types.
  • 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.
  • Enumerators in C#Oct 25, 2001. An enumeration (enum) is a special form of value type, which inherits from System.Enum and supplies alternate names for the values of an underlying primitive type.
  • Exploring delegates in C#Oct 30, 2001. Delegates are a kind of type safe function pointers which are actually declared as class derived from System.MulticastDelegate.
  • 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.
  • 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.
  • FlashCards Language Program : How to read and save Images in a Sql Server Database using ADO.NETNov 09, 2001. I thought it would be fun to write a simple program that displayed flashcards from a database and at the same time, show you how to read and write images to the database. This program is a simple flashcard program that talks to a single table in a Sql Server Database.
  • Network Programming in C# - Part 2Nov 12, 2001. This is the second part of the series of articles about the network programming with C#.
  • Email Notifier with Microsoft Agent--- GENIENov 16, 2001. Email notifier with Microsoft Agent is a TCP/IP application that notifies the user if there is email in the user's email server.
  • Exceptions and Exception StackNov 16, 2001. The purpose of this tutorial is to explain firstly how you would go about creating your own set of exceptions to trap error conditions that could occur in your code or library, for your own benefit or for the benefit of another developer using your library. The second lesson is on how the C# exception stack works, and how you can use it to catch all types of exceptions.
  • 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.
  • Using Interfaces in .NET RemotingNov 30, 2001. In this article, we will create a remote object that will return rows from a database table. For the sake of simplicity I have used the NorthWind database that is packed with the installation of the Microsoft SQL Server.
  • Operator Overloading in C#Dec 03, 2001. All unary and binary operators have pre-defined implementations, that are automatically available in any expressions. In addition to this pre-defined implementations, user defined implementations can also be introduced in C#.
  • Simple Sniffer in C#Dec 03, 2001. This program shows you how to retrieve data from a packet using Sockets.
  • Type Conversions in c#Dec 04, 2001. Type conversion is a process of converting one type into another. Using C# type conversion techniques, not only you can convert data types, you can also convert object types.
  • NUnit for people who can't cook - Part IDec 13, 2001. This article should l help C# user to get the most out of NUnit. Therefore, we are going to cover not only the usage of NUnit , but also the small tricks on how to set it up most efficiently.
  • Working With Data TypesJan 02, 2002. Explains data types in C# and how to work with them.
  • Adapter Pattern in C#Jan 03, 2002. The Gang Of Four (GoF) defined the Adaptor pattern as follows in their most famous book "Design Patterns" Gamma et al. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces."
  • Playing with DataGrid ControlJan 08, 2002. The article gives a user the overview to show the importance and versatility of the DATAGRID control.
  • Interrogating Systems with WMIJan 18, 2002. WMI allows you to retrieve information such as hardware types, software installed and much much more.
  • Interrogating System with WMI - Part 2Jan 24, 2002. After my last article on WMI it was time to get serious. WMI or Windows Management Instrumentation is useful on a local machine to produce a WINMSD type program but using it across a network makes it even more useful.
  • FlashCards Language Program : How to read and save Images in a Sql Server Database using ADO.NETFeb 19, 2002. I thought it would be fun to write a simple program that displayed flashcards from a database and at the same time, show you how to read and write images to the database. This program is a simple flashcard program that talks to a single table in a Sql Server Database.
  • Creational Pattern - BuilderFeb 19, 2002. The Builder pattern allows a client object to construct a complex object by specifying only its type and content. The client is shielded from the details of the objects construction.
  • XML Web Services Type MarshalingFeb 20, 2002. This article illustrates that various data types can be passed to and returned from Web Service methods.
  • 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.
  • Implementing IEnumerator and IEnumerable Interfaces using Inner Class in C# Feb 28, 2002. .NET framework provides IEnumerable and IEnumerator interfaces to implement collection like behavior to user defined classes.
  • SOAP Message with Binary AttachmentsFeb 28, 2002. Recently Microsoft announced new format called DIME: Sending Binary Data with Your SOAP Messages.
  • Sorting Object Using IComparer and IComparable Interfaces Mar 01, 2002. The System.Collections namespace contains interfaces and classes that define various...
  • Create a SQL Server Database dynamically in C#Mar 05, 2002. In this article, I’ll show you how to create a new SQL Server database and its objects such as table, stored procedures, views and add and view data. I’ll also show you how to change database table schema programmatically. You’ll see how SQL statement ALTER TABLE is useful when you need to change a database table schema programmatically.
  • 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.
  • Adding Controls to a DataGrid at RuntimeMar 19, 2002. This article below sheds some light in above area i.e. user can add any control based on his/her choice and can use it to edit the details in the data grid.
  • ASP.NET Naughts and CrossesMar 22, 2002. This article demonstrates the basic techniques used to build "ASP.net Noughts & Crosses" (tic tac toe to our American friends).
  • .NET Remoting: The Interface ApproachMar 26, 2002. In this article, we will create a remote object, and access this object using the Interface. The object returns rows from a database table.
  • Simple NSLookUp Implementation in C#Apr 01, 2002. This is code implementation for simple nslookup. As you can see from the code listing, I've used classes defined in the System.Net namespace.
  • BattleShips GamesApr 02, 2002. This application presents a grid of 100 squares to the user. The user has thirty five attempts to find to find the computers fleet. The computer randomly positions five ships of varying sizes around the board.
  • Multithreading Part 2: Understanding the System.Threading.Thread ClassApr 08, 2002. In this article we will study the .NET threading API, how to create threads in C#, start and stop them, define their priorities and states.
  • Reflecting Data in .NET Classes - Part IV: From Database TableApr 08, 2002. In this article, we will be looking at how to "reflect" data from the most common data source - Database tables.
  • Multithreading Part 3: Thread SynchronizationApr 11, 2002. The .NET framework provides a number of classes and data types that you can use to control the access to shared resources. Thread synchronization refers to the act of shielding against multithreading issues such as data- races, deadlocks and starvation.
  • Loading XML File in a TreeView Control using MultithreadingApr 19, 2002. There are many occasions when programmers need to develop multithreading applications, which can load big files in the background and let the user do data entry or other jobs without any interruption. In this article, I'll show you how to create multiple threads to load multiple files.
  • .NET Security in C#Apr 22, 2002. This article shows how to make file I/O access be denied if the user running the application did not have administrator privileges.
  • Mastermind Game with Drag and Drop FunctionalityMay 15, 2002. There as nice article some time ago on this site for creating mastermind game by Mike Gold. I am rewriting complete game from scratch to implement Drag and Drop feature and presentable User interface.
  • Assembly Browser: Browsing a .NET AssemblyMay 17, 2002. This program lets you browse an assembly and lists the methods and the parameter name and parameter type for each assembly.
  • 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.
  • An XY Plot User Control in GDI+May 24, 2002. This is a follow up of the article written originally for the beta version of .NET. called, A Graphics Component in C#.
  • Form Authentication for Mobile ApplicationsMay 28, 2002. In this example we will authenticate mobile web users for our application using Forms Authentication.
  • Comparison of C# with Java: A Developer PerspectiveMay 29, 2002. The .NET is a language and operating system (on Windows as of now) independent platform pretty similar to Java.
  • 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.
  • Key Logger Application in C#Jun 30, 2002. In this article, I'll explain an easy but an important concept of how to catch user pressed keys and write them into a log file.
  • 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.

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