C# Corner

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  • 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.
  • Get a database table propertiesJan 22, 2001. Get a table properties such as column names, types etc using DataColumn and DataTable.
  • 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.
  • ADO.NET DataSet ProgrammingMar 20, 2001. A sample project shows you how to add, edit, delete, navigate, save records in a database using DataSet.
  • Text to HTML ParserApr 05, 2001. If you have been into developing Web Applications then you might have at many times experienced that when you display multiple lines of data from a database you loose the spacing or formatting between multiple lines of data.
  • 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.
  • 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.
  • .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).
  • 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.
  • 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.
  • Resurrection and the .NET Garbage collectorJul 13, 2001. This article will explain and demonstrate a phenomenon that is unusual in the .NET implementation of the garbage collector. The phenomenon is known as resurrection. As the name suggests, an object is marked for destruction and in the last possible moment it is resurrected from the ‘dead’ and reactivated.
  • 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.
  • Mobile Device CapabilitiesAug 01, 2001. This article explains about mobile devices and their capabilities.
  • 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.
  • 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.
  • 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.
  • 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).
  • Developing Mobile Web Application with .NETOct 17, 2001. This article presents a general idea of the WAP (Wireless Application Protocol) and developing mobile Web application with .NET.
  • 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.
  • 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.
  • Network Programming in C# - Part 2Nov 12, 2001. This is the second part of the series of articles about the network programming with C#.
  • 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.
  • 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.
  • Web Enabled C# ApplicationJan 02, 2002. C# is a sharp-edged weapon for Microsoft Visual Studio Programmers. My article beneath presents a brief eye-catching vivid view of programming internet web-browser using C#(C Sharp), and solves today's need with tomorrow's software!
  • Working With Data TypesJan 02, 2002. Explains data types in C# and how to work with them.
  • 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.
  • 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.
  • N-Tier Development with Microsoft .NET : Part IIIFeb 25, 2002. The last installment in this series detailed more on the middle tier – business – façade and how to create a Web Service Export Proxy to have a physically separated middle tier.
  • SOAP Message with Binary AttachmentsFeb 28, 2002. Recently Microsoft announced new format called DIME: Sending Binary Data with Your SOAP Messages.
  • Reflecting Data to .NET Classes: Part I - From HTML FormsMar 06, 2002. Reflection allows us to examine internal details of assemblies and classes at runtime (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.
  • Low Cost Credit Card VerificationMar 15, 2002. The last digit of a credit card is a check digit that is used to detect keystroke errors when a check card is entered into a computer.
  • 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).
  • Space Remover UtilityMar 25, 2002. In this article, I want to show you how you can remove white spaces in a web page.
  • 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.
  • Performance Comparison of XslTransform InputsMay 02, 2002. To transform XML into HTML for use on a Web site or to transform it into a document that contains only the fields required you could use the XSLTransform class (found in the System.Xml.Xsl namespace).
  • Performance Comparison of XslTransform InputsMay 02, 2002. To transform XML into HTML for use on a Web site or to transform it into a document that contains only the fields required you could use the XSLTransform class (found in the System.Xml.Xsl namespace).
  • 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.
  • 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.
  • 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.
  • Editable GridView Control in C# and .NET - Part-III Printing the GridViewJun 24, 2002. In our last two articles, we talked about how to create an editable GridView and how to make it persistent in XML.
  • Writing a Generic Data Access ComponentJul 17, 2002. OK, I've received couple of emails people asking me how can they use a common data provider to access various types of data sources without loosing the power and flexibility of native data provider libraries.
  • Writing a Generic Data Access ComponentJul 17, 2002. I've received couple of emails people asking me how can they use a common data provider to access various types of data sources without loosing the power and flexibility of native data provider libraries.
  • Implementing Search in a DataList Web Forms ControlAug 07, 2002. Searching for the data and displaying the result in paging on the site it is important functionality for the web type applications.
  • Understanding Generic Type in C#Aug 15, 2002. Before we start tampering around the code, lets understand why we need a generic type?
  • Recipe to Implement Threads Quick n Easy in C#Aug 28, 2002. In this tutorial type article, author shows how to write threading applications quick and easy in C#.
  • Creating Strongly Typed Custom Collections in C#Sep 02, 2002. In this article, author shows you how to create and use strongly typed custom collections.
  • Working with COBOL Data Groups in C#Sep 11, 2002. In this article we will begin with a C# console application calling a COBOL DLL file. The C# application will pass it a number of occurrences to create in the table (much like a user requesting a specific number of months to report on).
  • COBOL and .NET Data TypesSep 24, 2002. .NET has created a new, level playing field for a multitude of programming languages to interact on a scale never before seen.
  • 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.
  • Accessing Text Files using ODBC Data ProviderNov 12, 2002. In this article, I will show you how to access Access database files using ODBC data provider.
  • Cryptography in Microsoft.NET Part II: Digital Envelop and Digital SignaturesDec 18, 2002. Part-I of this article covered cryptography in the context of encryption. This part continues from where part-I left. It assumes that the reader understands the purpose of encryption, knows about the two types of encryption namely asymmetric encryption and symmetric encryption and the fundamental differences between them. It also assumes that the reader understands encryption-decryption classes in System.Security.Cryptography namespace and the stream based encryption model in. NET framework class library (FCL).
  • GalleryDotNetJan 02, 2003. This is a simple C# console application (source included) that takes a directory of images and creates a html gallery out of them.
  • 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.
  • DTS Custom Task in C#Jan 28, 2003. During last year I wrote an article about DTS and how to use it in C#. In that article I stated that I didn’t manage to solve the problem related to CustomTask. Today I finally forced myself to tackle that problem again and here is the result. Writing simple CustomTask in C# is the easiest part.
  • Possible Usage of Visitor and Type CastsFeb 25, 2003. In this article I will try to introduce Visitor pattern and one possible variation on it. It treats problems related to projects projects where high level of adaptability is needed.
  • Developing Secure Web Sites with ASP.NET and IIS: Part IMar 04, 2003. Developing security for a site is like paying tax. You know it should be done at the end of financial year. But you keep it for the last and some time expect you should never have to do it. It is a similar kind of situation when building a web site. There are some web sites available to general public that can be access by any one. The security for these sites can be minimum or none at all. There are some web sites that publish and hold important information that have to be secure one way or another.
  • Regular Expression ValidatorMar 14, 2003. This tool is useful when you are creating Regular Expression. This tool will help you in checking syntax of the regular expression typed in.
  • Comparison between PDA/Pocket PC and Workstation FeatureApr 07, 2003. Pocket PC ships with a version of Internet Explorer, affectionately known as PIE (Pocket Internet Explorer).
  • 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.
  • Dynamically Setting Properties of a Class from a DatabaseMay 12, 2003. This example demonstrates a powerful feature of Reflection that will allow you to dynamically set the values of a class.
  • Implementing Caching in ASP.NetJun 10, 2003. This article explains the concepts, advantages and types of caching and the implementation of caching in ASP.NET applications.
  • Kuti.DataJul 02, 2003. The attached source code file has two parts - DataObject directory and Automatic SQL Generator.
  • C# Methods : Part II Jul 07, 2003. This article completes our discussion of methods. In this article, you will learn parameter passing, reference and value type parameters, and method overloading.
  • Boxing and Unboxing of Value Types : What You Need to Know?Jul 21, 2003. Programmers new to C# can encounter less than ideal performance and even unexpected results due to boxing and unboxing of value types.
  • ColorFul Web DropDown List in ASP.NETJul 23, 2003. In this example we will build an ASP.NET User Control which provides a listing of colors with the list items displayed in the actual color that the list item represents.
  • Output ASP.NET Page to HTMLJul 29, 2003. There are various reasons why it would be more appreciative to have the html page to be served to client.
  • User Controls In Internet ExplorerAug 13, 2003. ASP programmers have long been using ActiveX controls as part of their client-side programming techniques, but now we are able to easily render Windows User Controls (almost Windows Forms, but not quite) into our HTML.
  • Installing a Service ProgrammaticallySep 04, 2003. With the arrival of .NET, creation of a windows service has become a piece of cake by just selecting Windows Service as project type in the New Project Dialog Box.
  • Modal Popup Dialog Window in ASP.NETSep 15, 2003. This sample show you how to create modal popup dialog window in ASP.NET that passes and returns multiple parameters.
  • Storing Data in C#Sep 17, 2003. In this article, we will talk about C# data types and how data storage works with different types of data types.
  • ODBC usage in .NETSep 24, 2003. This article will provide a template of how to represent a smallint, integer, decimal, varchar and other ODBC data types that are used in the SQL Server environment in COBOL.
  • Creating Word Find Puzzles for the Web in C# and GDI+ Part IIOct 06, 2003. In our last article we showed you how to create Word Find Puzzles inside of a Windows Form. This article will show you the migration process of bringing it over to an ASP.NET application.
  • W23 ProtectorNov 24, 2003. The attached project is a W23 Protector. This program protects with a Windows registry code by applying 8 various types of protections. The program also has a security account with 3 types of user system accounts which are saved in an XML file.
  • Events Programming in C# Nov 24, 2003. In this article, author discusses the events model in .NET and how to implement events in your applications using C#.
  • Oracle Connectivity in .NETDec 03, 2003. This whitepaper takes you through different ways of database connectivity to Oracle database from .NET. This also talks about the advantages and disadvantages of all of these technologies.
  • Image Resizing and FTPDec 24, 2003. I wanted a program to resize image and just FTP them to my site. After talking with friends, I realized they also had the same problems. So I built this simple .Net application.
  • Reading and Display Source of Web PagesDec 30, 2003. This sample project is made to help ASP.NET developers. This projects highlights how to add HTML page inside your ASP.NET page which is hosted on same or different webserver. This page can still run on that server and only output is included in the ASP.NET page.
  • SOAP, .NET, and COM an Introduction - Part IIIFeb 02, 2004. This article starts with the basics of SOAP, SOAP XML model and its data types followed by the integration of SOAP functionality in .NET class library and how .NET developers can take advantages of SOAP in their applications.
  • SOAP, .NET, and COM an Introduction - Part IIFeb 02, 2004. This article starts with the basics of SOAP, SOAP XML model and its data types followed by the integration of SOAP functionality in .NET class library and how .NET developers can take advantages of SOAP in their applications.
  • SOAP, .NET, and COM - An Introduction: Part IFeb 02, 2004. This article starts with the basics of SOAP, SOAP XML model and its data types followed by the integration of SOAP functionality in .NET class library and how .NET developers can take advantages of SOAP in their applications.

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