C# Corner

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  • Asynchronous Request in .NET (C#)Jan 09, 2000. This code sample shows how to call a COM component in .NET framework using C#.
  • Interactive ButtonsFeb 26, 2001. By using control properties, you can give your program an interactive look as you see on web sites.
  • 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.
  • Drag and Drop Using C#Mar 30, 2001. Drag and Drop in C# has been a question on the UseNet and many websites on C# so I have decided to tackle the problem here. This is an update of the directory tree component download on this web site.
  • Web Request ClassApr 04, 2001. This is a simple application that the gets the source of a webpage via the WebRequest Object.
  • 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.
  • 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.
  • Quote ResponderMay 09, 2001. The program will periodically check your mail for incoming email requests for a stock quote.
  • Transaction Web SiteMay 16, 2001. When I started working with this technology I faced a problem dealing with session as in any transaction or Database oriented portal this is a must requirement to deal with.
  • Web Scanner Part-1Jun 01, 2001. My favourite technology web site is updated throughout the day. I thought it would be nice to have a program that checked every 30 minutes for updates and told me what stories were there.
  • Catch Hold of Device CapabilityJun 05, 2001. If you are developing Mobile Application and been through the different standards in Market.
  • IL "The Language of CLR" - A Platform for Cross-LanguageJun 28, 2001. This article introduces the Cross-Language capabilities of CLR environment (Common Language Runtime Environment) and its constituent language IL (Intermediate Language).
  • 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.
  • 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.
  • Horoscope Unit of Mobile SiteSep 06, 2001. Horoscope Service for Your Mobile.
  • Mobile Page Unit of Mobile SiteSep 19, 2001. This is something like creating WAP Pages it is still as usual my basic starting So here i will be storing only some info but What it exactly is the same as if people heard of WAP Pages and many sites offer you to create your own WAP Pages similar to WebPages but limit it to the device size and strength.
  • Mobile Page View UnitSep 24, 2001. This addition to the site retrieves the unit and shows the content of that page.
  • Adding Copyright to a GraphicsSep 28, 2001. With the popularity of digital cameras and the increase of digital archive web sites allowing you to buy images to use its handy to be able to add a copyright to your image.
  • Sending WAP Site feedback from Mobile PhoneJan 16, 2002. The WAP (Wireless Apllication Protocol) is the leading standard for information services on wireless terminals.
  • Buliding A WAP SiteFeb 27, 2002. In this Article I would like to share my views about Pagibnatioon and how to use Pagination in Mobiles Forms.
  • Command Patterns in C#Mar 04, 2002. Command pattern encapsulates a request as an object and gives it a known public interface. Command Pattern ensures that every object receives its own commands and provides a decoupling between sender and receiver.
  • 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).
  • IP LookUp Program in .NETApr 03, 2002. This is an IP look up program that uses C# Windows Forms and IPHostEntry to resolve the DNS request.
  • 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).
  • 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.
  • SpellCheck.NET Parser in C#Jun 25, 2002. SpellCheck.net is free online spell checking site. Whenever I need to check my spelling I visit this site , so I decided to write a parser for this site.
  • 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.
  • 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).
  • 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.
  • OpenGL using CsGLOct 07, 2002. I m glad to be the first one writing about OpenGL at this site. What I want to show you in this article is that it is fairly easy to setup a form that is capable of showing 3D.
  • Synchronized Threading in .NETDec 11, 2002. Threads are a powerful abstraction for allowing parallelized operations: graphical updates can happen while another thread is performing computations, two threads can handle two simultaneous network requests from a single process, and the list goes on. Since threads are pretty simple to understand, conceptually, but, practically, they are a cause for programmatic headaches, I decided to write this program to describe how to make use of threads.
  • 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.
  • Implementing MVC Design Pattern in .NETFeb 25, 2003. This article explains the basic concept of the Model View Controller (MVC) design pattern and also shows how how closely .NET Framework can be used to implement the MVC design pattern with the one that originally conceived.
  • 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.
  • 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.
  • Distributed Cross Platform Applications, the Easy Way Mar 07, 2003. There are many ways of transferring data from one process to another. All those methods have some advantages, but also some drawbacks.
  • 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.
  • Developing Secure Web Site with ASP.NET and IIS: PartIIMay 07, 2003. Authentication is a very important element of developing secure sites. It is the starting point of a secure environment for the protected resources. I have discussed several authentication mechanisms available in ASP.NET and how they join with IIS to provide a secure platform to develop sites in Part I of this article. I will be looking at Form Authentication and how to implement it in several sample web applications.
  • Developing Secure Web Site with ASP.NET and IIS - PartIIMay 07, 2003. Authentication is a very important element of developing secure sites. It is the starting point of a secure environment for the protected resources. I have discussed several authentication mechanisms available in ASP.NET and how they join with IIS to provide a secure platform to develop sites in Part I of this article.
  • 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?
  • SMTP InternationalizationJul 16, 2003. You can find many articles dedicated to C# SMTP implementation on this or other sites.
  • Check Internet ConnectionAug 25, 2003. How to check if your computer is connected to the internet with C#. It's much more easier that other tutorials I've seen in other sites.
  • Gathering a Web Site Users Information in ASP.NETAug 26, 2003. In this article, I will show you how you can collect information about your site visitors using ASP.NET classes.
  • Introduction to ASP.NET HTTP ModuleNov 24, 2003. This article will help the users to examine the use of HTTP Modules and their use in extending the pipeline. The HTTP Pipeline is a series of extensible objects that are initiated by the ASP.NET runtime in order to process a request.
  • 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.
  • QuickModeler 2.0 : A Reverse Engineering Tool for Visual Studio .NETJan 08, 2004. QuickModeler is an Add-In for Visual Studio .NET which provides reverse engineering and easy UML modeling functionality to the development environment. It comprises features like autolayout, inheritance and association modeling, cross language modeling, grid, clipboard, etc.
  • Image Resizing : Part IIJan 12, 2004. In my first article Image Resizing and FTP, I showed how I resize my digital camera pictures and FTP them to the web. I received a couple of requests to share the code for the image gallery on my web site that I use to view them so here it is.
  • Using Index Server for ASP.NET Site SearchJan 23, 2004. This projects highlights how to add search facility to your ASP.NET page using ADO.NET to browse index server search catalogs.
  • 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.
  • Forms Authentication with Active DirectoryFeb 05, 2004. This article and sample code explains how you can take advantage of Active Directory in Web applications for authenticate and authorize the Web site users.
  • Using SOAP Header and SOAP Extensions in a Web ServiceApr 12, 2004. In this article, we will develop a web service that would authenticate users for web sites. The web site needs to pass the user ID as well as the password for the user. Apart from this the web site also needs to pass the site’s ID and password.
  • Portal Development in ASP.NET 2.0Jun 04, 2004. The new security controls make authentication a breeze and web parts provides the user the means to customize content. Personalization and Membership features give developers a ready made framework for personalizing the site to suit individual user needs.
  • HTTP Handlers in ASP.NETAug 24, 2004. The low level Request and Response API to service incoming HTTP requests are HTTP Handlers in ASP.NET. All handlers implement the IHttpHandler interface, which is located in the System.Web namespace. Handlers are somewhat analogous to Internet Server Application Programming Interface (ISAPI) extensions.
  • Microsoft Application Center TestOct 13, 2004. Application Center Test (ACT) stress tests Web servers and analyze performance and scalability problems of Web applications. ACT simulates a large group of users by opening multiple connections to the server and rapidly sending HTTP requests. It also supports several other authentication schemes and the SSL protocol, making it ideal for testing personalized and secure sites.
  • A comprehensive view of SharePoint: Part IINov 19, 2004. Enterprise portals are an important part of today's enterprise IT infrastructure. Portals are used as an entry point for a specific topic, organization, project or team. Many enterprises have an enterprise portal, opened by default when an employee opens up a browser, which shows general information about the enterprise, its strategy, its departments, etc.
  • Performance Improvement in ASP.NET Using CachingFeb 01, 2005. ASP.NET provides caching at several levels for you to leverage and improve the responsiveness of your application by storing the page output or application data across HTTP requests and reuse it. This allows the web server to take advantage of processing the request without recreating the information and thus saving time and resources.
  • Starting With SharepointFeb 11, 2005. Microsoft came up with an idea of "Sharepoint Server", and now it's only a matter of few clicks to build an enterprise-portal. This article shows you how.
  • Web Based Chat ApplicationMar 15, 2005. The article explains about devloping a chat Solution in ASP.Net / C# which is differnt than any of the available solutions and works under any firewall and browser settings.
  • Count Image Requests from a Web Server using ASP.NET Mar 19, 2005. This article explains you how we can count Image request from a Web server using C# and ASP.NET.
  • Count Image Requests from a Web Server using ASP.NET (VB.Net)Mar 19, 2005. This article explains you how we can count Image request from a Web server using VB.Net and ASP.NET.
  • Building a Web Site using Visual Studio 2005Apr 13, 2005. This article gives you a glimpse of new features of Visual Studio 2005. In this article, you will see the power of Visual Studio and how easy it is to build Web sites using new controls without even writing a single line of code.
  • SQL Server Reporting ServicesAug 04, 2005. This article describes how to modify the team reports generated by VSTS or BI Studio over SQL Server 2005.
  • Mobile Web Application SecretSep 12, 2005. This article gives you a clear idea how an ASP.NET Web Application rendering works differently on hand held devices than running Web Applications on normal machines.
  • ASP.NET Whidbey FeaturesNov 10, 2005. ASP.NET 2.0, the latest version of ASP.NET has many improvements that greatly increase developer productivity. This article gives you a peek into many of these new features available in ASP.NET Whidbey.
  • Master Pages in ASP.NET 2.0Nov 15, 2005. Master pages is a new concept in ASP.NET 2.0, which allows site developers to build master templates for their site's look and feel and put all common code which is shared by all the pages.
  • Manage and Administer ASP.NET Web Sites in Visual Studio 2005Nov 16, 2005. ASP.NET Configuration Wizard is a new feature available in Visual Studio 2005, which takes care ASP.NET Web Application configuration and deployment problems and allows developers to set Web application settings using a visual interface.
  • Automated Backup with NAntNov 26, 2005. An article describing how to use the NAnt build tool to create a custom, automatted backup process.
  • Introduction to Model View Control (MVC) Pattern using C#Dec 12, 2005. The benefits of using the Model-View-Control (MVC) pattern in our development projects is that we can completely decouple our business and presentation application layers. Furthermore, we will have a completely independent object to control the presentation layer.
  • How to Select all Checkbox when Header Checkbox is SelectedDec 30, 2005. Here I have provided the code using javascript to check/uncheck all checkboxes when header checkbox is checked. I recommend JAVA Script because its executed at client side and saves request Round-Trip time.
  • ASP.Net 2.0 What's new in Page Life CycleJan 07, 2006. ASP.NET 2.0 adds some new events to allow you to follow the request processing more closely and precisely. This article looks into those events.
  • Creating a Simple WebPart Page and Use WebServer Controls as WebPartsJan 10, 2006. Portal web sites such as MY MSN and MSN Spaces, often organize their data into discrete units that support a degree of personalization. Information is organized into standalone parts [WebParts], and users can rearrange those parts to suit their individual working styles. Here we will see how to add web parts to a web part page.
  • Credit Card Fraud Prevention using .NET Framework in C# or VB.NETJan 16, 2006. How can you protect your business from credit card frauds? This article have few steps that can be taken to ensure that the transaction is being requested by the real cardholder.
  • Exception ManagementFeb 02, 2006. Correct exception handling in your Web pages prevents sensitive exception details from being revealed to the user. The following recommendations apply to ASP.NET Web pages and controls.
  • Authorization and Programmatic ImpersonationFeb 03, 2006. By default, ASP.NET applications usually do not impersonate the original caller for design, implementation, and scalability reasons. For example, impersonating prevents effective middle-tier connection pooling, which can have a severe impact on application scalability.
  • How to Build Multi-Language Web Sites with ASP.NET 2.0 and VS.Net 2005Feb 06, 2006. In this article, we will explore the necessary details for working with resources in ASP.NET applications and for creating international ASP.NET applications based on embedded resources and the integrated localization support.
  • Integrating .NET Web Services with Java and classic ASP Clients for InteroperabilityFeb 13, 2006. The goal of this article is to show to integrate Microsoft's .NET Platform Web service with other platform like Java and ASP. The samples demonstrate basic techniques and principles that are used to cross-platform interoperability via Web services.
  • MVC architecture in ASP.Net using C# and Microsoft Data Access Application blockFeb 28, 2006. In this article we will learn how to use Microsoft Data Access Application block in ASP.Net using C#, I have used Microsoft Data Access Application block in conjunction with MVC architecture, here you will learn lot about class libraries, interface, implementation etc.
  • Deploying ASP.Net 2.0 Web site to Production Server: Part IApr 03, 2006. Deploying ASP.NET 2.0 web site is the first issue facing the developer. This part of the article gives you a step by step to how to move membership tables from MS SQL express Edition to your database that you are used on your web site. The second part we will go in details to configure our asp.net web site.
  • Deploying ASP.NET 2 Web Site to Production Server: Part IIApr 10, 2006. On the first part we discussed in detail how to move our database which contains the membership tables from the default aspnetdb Database to our database. On this part we will show how to change the default settings of asp.net membership and role providers to read from tables which stored on our database.
  • ASP.Net Page Life CycleMay 16, 2006. This article explains simple ASP.NET web page execution in depth.
  • Troubleshooting Tips for ASP.Net DevelopersMay 22, 2006. This article explains three silly problems that ASP.net developers regularly face and explains how to tackle them.
  • The request failed with HTTP status 401: Access DeniedJun 30, 2006. An unhandled exception occurred during the execution of the current Web request. Please review the stack trace for more information about the error and where it originated in the code.
  • The request failed with HTTP Status 405: Method Not Allowed.Jul 04, 2006. PDSTest.NET Exception Occurred while processing the request. The request failed with HTTP Status 405: Method Not Allowed
  • Cross Page Postback in ASP.Net 2.0Aug 11, 2006. In ASP.Net 2.0, cross-page post backs allow posting to a different web page, resulting in more intuitive, structured and maintainable code. In this article, we will explore the various options and settings for the cross page postback mechanism.
  • PDF Search in SharePointSep 11, 2006. This is a small article that tells users about the PDF search in SharePoint. I have not included the exact steps that need to be taken because that has already been published before on many sites including Microsoft's. My objective is tell users where to start looking for resources if they want to search PDF documents in SharePoint.
  • Pull a column value from another list in your site in Sharepoint Portal ServerSep 21, 2006. In document and form libraries, you can create custom columns or metadata properties and interestingly, you can autopopulate these columns with data that can be hardcoded or extracted from other lists that are part of the same site where your document library is located.
  • Prevent CD AutoplaysDec 19, 2006. This article describes the approach used programmatically to prevent a CD from going into auto play mode; this may be useful to you if you are, for example, writing an application that logs directly to CD and you are trying to burn data periodically to a CD but you do not want the CD to go into auto play mode after burning a some data to it.
  • Building a Friends Networking WebsiteJun 07, 2007. This articles shows how to build a friends networking website using C# and ASP.NET 2.0.
  • WEB farm - Load Balancing in Asp.netJul 27, 2007. The concept behind the web farm is that a number of different web sites share pooled resources. They typically share a common front-end dispatcher to perform load control and distribute customer requests. They share the multiple web servers themselves.
  • Whose Online in ASP.NET 2.0Aug 06, 2007. I had problem in one of the project to show who is onlne & how to track multiple login/prevent from multiple login. I had gone back and forth so many time and finally am here with small snippet of code, I guess eveyone should read this article!
  • 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.
  • Extracting the Country from IP AddressSep 25, 2007. Sometimes we want to get visitors details who visit our web site or using client connecting our server. This sample descirbes how to translate IP address and query countrie and city from IP address.
  • Read Asp.net Request Param and Session dynamically into propertiesOct 04, 2007. This Article shows how you can use Attributes and Reflection to dynamically populate property with value from param, session or context without writing any addition code. I have used this technique in past and I hope you will also find it useful.
  • Ajaxify a simple HTML page using a web service Oct 23, 2007. In this article I will explore using a web service to deliver HTML markup content to an HTML aware client using the XML HTTP request object from JavaScript code.
  • Cross browser conditional validationOct 25, 2007. This article show how to show/hide textbox with required field validation on radio button click in a master page.
  • Distributed Databases in SQL Server 2005.Nov 20, 2007. An increasing number of applications require access to multiple databases located at different sites. A distributed database system allows applications to access database locally and remote transparently.

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