C# Corner

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  • ColorDialog : How to use?Dec 21, 2000. Changing color of your Window and its controls is a piece of cake in C# using ColorDialog class.
  • Using the ref ParameterMar 06, 2001. The ref keyword on a method parameter causes a method to refer to the same variable that was passed as an input parameter for the same method. If you do any changes to the variable, they will be reflected in the variable.
  • Testing .Net Components Using NUnitMar 08, 2001. Write unit tests before starting development". Writing test allows me to see immediate results of every code change.
  • 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.
  • 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.
  • 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.
  • ADO.NET: What's changed in .NET Beta 2?Jun 20, 2001. ADO.NET API is one of the changed APIs. In this article, I've covered some of ADO.NET changes in Beta 2.
  • Using ref and out ParameterJun 20, 2001. When we pass a parameter as ref to a method, the method refers to the same variable and changes made will affect the actual variable.
  • C# Language changes from .NET Beta 1 to .NET Beta 2 Jun 22, 2001. This article contains C# language changes from Beta 1 to Beta 2.
  • 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...
  • PDF File GeneratorJul 26, 2001. PDF documents are the now a days is standard in Documents Exchange over the internet,as these documents are more or less platform independent and can be viewed on virtually any platform without any formatting or changes in the file structure.
  • Messaging between Threads using Message LoopAug 20, 2001. MessageLoopLib is a stripped down version of a complete, threading communication subsystem Ive written. This implementation is a single thread created in the GUI constructor. Ive dropped all thread management and have had to change some of the message code to accommodate this.
  • Scribble in C#Aug 24, 2001. Here is a simple scribble C# program you can change the color and the pen width.
  • A Vision Regarding .NETAug 27, 2001. The present enterprise setup's need to have n-tire architecture with diverse platforms and object models communicating with each other. The present applications are to be created such that those applications have to run in any platform (like Windows, Linux, Mac , Unix etc) and which consist of components written in many programming languages and object models.
  • Mouse and Key EventsSep 11, 2001. This article explains the usage of key and mouse events. The following code shows you how you can read mouse position on mouse move.
  • TCP Client and ServerSep 20, 2001. You need to compile the server and the client programs separately. Before compiling, change the IP address in both programs to match that of your machine (NOTE: You can get IP address of your machine if you run 'ipconfig' from the command prompt in Windows NT/2000 m/c's)
  • A Wheel Control in C#Feb 15, 2002. This article describes a simple Windows control written in C# that simulates a wheel knob like that on your walkman used to change volume.
  • 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.
  • .NET Beta 2 and Navigation in XML DocumentsMar 13, 2002. .NET Beta 2 was released yesterday at tech-ed, 2001, Atlanta. Many things have been changed in Beta 2 since Beta 1. In this article, I'll cover changes in XmlNavigator class replaced with XPathNavigator.
  • XML Signatures in Microsoft .NETMar 28, 2002. In this article we will explore XML Signature specification from W3C and its implementation in .NET using C#.
  • Using XML Based Configuration File in Windows Form ApplicationsApr 15, 2002. Often when building an application, a programmer wants to be able to change application settings without having to recompile the application.
  • Tracking Time in a Window ApplicationApr 15, 2002. The program reads from an XML file to get the data about names and birth dates, so it is easy to add or remove names without changing the code in case my son decides the program should include his pet dog or turtle.
  • An Editable GridView Control in C# and .NET - Part 1May 28, 2002. I've gotten a lot of e-mail about my GridView control Article, so I've decided to write a follow up article on a more powerful control that allows you to edit the cells within the control and change the colors of the cells.
  • Developing XP Style ApplicationsJun 26, 2002. Since Windows 95, Microsoft has always changed the styles of its GUI, but with Windows XP, the changes are very profound.
  • 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.
  • Using Visual Studio .NET to Build and Deploy ApplicationsJul 29, 2002. No matter how much time you spend designing your application there is one key stage where it can all fall apart, the build and deployment stage.This is a first in a series of articles in which I am going to demonstrate how to use Visual Studio .NET.
  • 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.
  • Changing User Information using Active DirectoryAug 14, 2002. If your company is one of the lucky? Ones to implement Windows 2000 Active Directory you may have been looking for a way to populate it with data. Perhaps adding people’s details from a file directly into the active directory.
  • Form Designer in C# and .NETSep 02, 2002. The FormMaker.NET Application has an undo feature for removing controls you just placed on the form and a fine tuning placement mechanism for positioning the control through the arrow keys.
  • Using DTS from C#Sep 16, 2002. In this article I will concentrate on enumerating, executing and changing properties or global variables of DTS package.
  • Sealed Class in C#Sep 23, 2002. This article explains how to create and use a sealed class using C#. We will also review why programming gurus use sealed classes in their code and products.
  • Customizing Default Project SettingSep 26, 2002. "How do I change the default exe name of my project?". I received this question in an email.
  • 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.
  • Drawing Shapes using ThreadingOct 25, 2002. This is simple multi-threading program that draws circles and rectangles. Each shape is handle by individual thread that created every time you press start button. Using sleep method on each thread we can change the speed of each shape.
  • 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.
  • Function to Change a Block of Text to Title CaseNov 20, 2002. Function to change a block of text to Title Case.
  • Cryptography in Microsoft.NET Part I: EncryptionDec 12, 2002. Microsoft .NET has pre-built solutions to all of these in each application domain, viz., ASP. NET, Web Services, Serviced Component etc. It enables building secured application by simple configuration as in ASP.NET to full fledged programmable security as in code access security and Cryptography.
  • Cryptography in Microsoft.NET Part I: EncryptionDec 12, 2002. In this article, Gowry sheds lights on the basics of cryptography and how it can be implemented in .NET.
  • DigitizeAny - A .NET Windows Digitization ToolDec 17, 2002. DigitizeAny uses Win32 API calls to obtain the coordinates of the cursor and then translates to the graph coordinates once set. Since a mouse click would essentially bring to focus the window where it is pointed to, this tool uses the key event to capture the coordinates of the cursor.
  • Events in C# Made Easy - Lesson1Jan 02, 2003. Events are useful for updating a user interface with changed data, or causing a piece of code to run after another piece of code has completed. .NET has brought us a powerful model for programming events.
  • 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.
  • 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.
  • .NET Framework Version 1.1 - Side-By-Side ExecutionApr 11, 2003. Microsoft has announced the release of the new version of the .Net Framework 1.1. As with almost everything in life, the only constant is change.
  • Change Color of a Column Based on Column ValuesMay 15, 2003. In this article we'll see how to change the color of column based on the column value.
  • Formatting ASP.NET DataGrid's DataJun 17, 2003. This article shows you how to change the color of a DataGrid row and format of date.
  • Changing the default limit of 25 threads of ThreadPool ClassJun 19, 2003. The Threadpool is useful for managing threads that are usually in a wait state and that take only a short amount of time to do their work. If still you would like to change the default limit of 25 threads then here you go.
  • How to Change DataGrid Header Text?Jun 30, 2003. This article shows you how to change the header text of a DataGrid programmatically.
  • Code Generator for Basic Stamp II MicrocontrollerOct 15, 2003. The Basic II Stamp is programmed by the language its named after, Basic. The language is a combination of Basic syntax and built in key words that control the Basic Stamp II chip.
  • .NET versus ONENov 24, 2003. Microsoft .NET and Sun ONE are that glue for each of the companies—the super glue that tries to hold together a lot of information around vision, architecture and products.
  • 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.
  • Object Oriented Concepts in C#Dec 24, 2003. In this article we will discuss key concepts of object orientation with their practical implementation in C#. We will discuss here basics of OOPS including Interfaces, Access Modifiers, inheritance, polymorphism etc.
  • Real Life SQL and .NET: Part IJan 13, 2004. Welcome to the world of SQL and the huge, growing database technologies of today’s business all over the SQL world. By reading this article, we have begun accepting the knowledge that will soon be required for survival in today’s world of relational database and data management. Alas, for the reason that it is first necessary to provide a background of SQL and cover some preliminary concepts that we need to know, the majority of this article is text in paragraph format.
  • DataReader 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.
  • DataAdapter 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.
  • DataView 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.
  • DataSet 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.
  • DataTable Events 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.
  • Constructing a DataTable using 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.
  • Data Binding in DataGrid Control using 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.
  • 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.
  • Host Integration Server 2000 : An OverviewFeb 24, 2004. This white paper highlights some of the features offered by Microsoft's Host Integration Server 2000. This white paper also gives an overview of key benefits and features in Host Integration Server 2000.
  • Report Generation in .NETFeb 27, 2004. Report generation is an integral part of enterprise application development. Choosing the right kind of report generation strategy decides the success of the application in terms of cost and performance. The white paper discusses some of the key factors that need to be considered when architecting reporting systems in .NET and C#.
  • Using Enter and Tab Keys to Navigate on a FormMar 24, 2004. When building Windows Forms application you may want to use a tab or return key to navigate on your textboxes. This code shows you how to do it.
  • Introduction to GDI+ Transformations Apr 01, 2004. A transformation is a process that changes graphics objects from one state to another. Rotation, scaling, reflection, translation, and shearing are some examples of transformation. Transformations can be applied not only to graphics shapes, curves, and images, but even to image colors.
  • Advanced Notepad in C#Apr 13, 2004. This is an advanced version of Notepad that allows you to search, replace, change background and foreground text color. It also provides registry editing options.
  • A Macro for Creating Properties from Private FieldsMay 12, 2004. Macros are a useful way of speeding up your coding efforts, however writing them can be a somewhat daunting task. Luckily, .NET gives you a pretty powerful recording feature for recording macros from key strokes.
  • Using the Tablet PC as a Flashing Restaurant Menu in C# and .NETJun 08, 2004. This is a simple application written for a restaurant using Tablet PC that allows you to list such things as lunch specials and have the colors on the board change randomly to produce an interesting flashing sign effect.
  • Refactoring in Visual Studio 2005Jun 11, 2004. Refactoring allows developers to use the built-in feature of Visual Studio to rename and convert and change the signatures and definitions of a class members. In this article, I will show you how refactoring feature provided by Visual Studio 2005 can be a handy tool when you are reorganizing or optimizing your existing projects.
  • OneNote 2003 - An IntroductionJul 13, 2004. Microsoft Office OneNoteTM2003 is part of next generation of Microsoft Office products. It allows users to electronically capture, organize, and reuse notes on thick clients.
  • Difference between passing reference types by ref and by valueSep 02, 2004. We all know the difference between passing value types byval and byref, if the variable is passed byval any change to the variable value in the called function is not reflected back in the callee.
  • Extreme ProgrammingSep 16, 2004. Extreme Programming is new development technique getting adopted in the software development and the key strength of this methodology is simplicity, team work, quality and testing.
  • CopySchema - Part 2Oct 05, 2004. CopySchema is a utility for copying all the data from one Oracle schema to another. Although similar to the exp/imp and bulk load utilities of Oracle, it has the advantage of offering a simple GUI interface and of handling changes to the schema.
  • CopySchemaOct 05, 2004. CopySchema is a utility for copying all the data from one Oracle schema to another. Although similar to the exp/imp and bulk load utilities of Oracle, it has the advantage of offering a simple GUI interface and of handling changes to the schema.
  • Coloring the Console in C# Oct 25, 2004. When working with console applications in C#, you always see a black and white screen. What if we want to change the background color of the console? We can change the foreground and background color of our console application by using win32 API SetConsoleTextAttribute().
  • Microsoft CRM Customization - Programming Email Activity AttachmentOct 26, 2004. Microsoft CRM is now on the scene and it is increasing its market share, due to Microsoft Business Solutions muscles and marketing strategy. It is tightly integrated with other Microsoft Business Solutions products such as Microsoft Great Plains, Solomon, Navision.
  • How to Populate a DropDownList insides a DataGrid through an XML FileNov 16, 2004. In this article, we will show how to fill a DropDownList inside a DataGrid through an XML file. We will also show how the contents of one DropDownList changes dynamically as we change the index of second DropDownList (both inside the grid).
  • Data Access Layer to execute Stored ProceduresJan 18, 2005. This article explains about executing a single stored procedure or batch of stored procedures from the application layer. As Data access layer completely decoupled from Application layer we just need to change the Application layer in case of any change in underlying database schema.
  • Public Key Token Generation AlgorithmJan 31, 2005. The PublicKeyTokenGenerator class and a small utility that generates Public Key Token from the Public Key using that class.
  • Best Practices of Exception ManagementMar 08, 2005. Exception management is one of the key area for all kinds of application development .You should adopt an appropriate strategy for exception management to build high quality and robust application .It is a very powerful concept and makes the development work very easy if its used efficiently.
  • SmartPhone Album Program with C#Mar 16, 2005. This article shows how to represent image’s thumbnail in ListView control, how to work with multi-forms and pass information with each other in a smart phone application, how to do simple image-processing, how to scroll picture in a picturebox and use the smart phone’s dpad keys.
  • Exploring Security in .NET: Part IJul 05, 2005. This article highlights some of the key concepts of .NET Security like Code Access Security, Evidence based Security and many more.
  • Building WebParts in ASP .Net 2.0Aug 08, 2005. Web Parts is a framework built into ASP.NET 2.0 for building highly customizable portal-style pages. End users can customize Web Parts pages by changing the page layout, adding and removing Web Parts, editing Web Parts properties, establishing connections between Web Parts, and more. I would like to share how to build web parts in ASP .Net 2.0. I am providing the source code of application as well.
  • M.S. Visio AutomationAug 19, 2005. This article demonstrates the flexibility of Visio products as a development platform by describing the customized business solutions.
  • New Dataset features in ADO.Net 2.0Aug 22, 2005. ADO.NET class libraries are used for accessing data from a wide range of data sources. One of the best features in ADO.Net is DataSet.Even though it was an exciting feature, performance was a concern with DataSet. Lets look some changes made to DataSet in ADO.Net in this article.
  • ASP.NET Session StateSep 21, 2005. Session state is nothing more than memory in the shape of a dictionary or hash table, e.g. key-value pairs, which can be set and read for the duration of a user's session.
  • Working with Drawing ClassOct 27, 2005. This article gives an overview to work with drawing and printing class. It explains how to use various methods in the drawing and printing class.
  • New IDE Features in Visual Studio 2005Nov 10, 2005. Visual Studio 2005 aims to simplify the development process thereby adding many new features to simplify the overall development experience. This article aims to discuss all major IDE related changes in Visual Studio 2005.
  • 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#.
  • Utilize the Full Functionality of the Whidbey File ManagementNov 15, 2005. This article is based on a pre-release version of Microsoft Visual Studio 2005, formerly code named "Whidbey". All information contained herein is subject to change.
  • ColorReliefButtonDec 14, 2005. My idea was to create a button that can be used as a colourful decoration for any application. The look of the ColorReliefButton can be determined by changing property values. The main attraction should be a cool look (Relief) of the controls text. Like this almost any font (TrueTyp) can be used to decorate a button and there is no need to use bitmaps.
  • ADO.NET Enhancements in .NET Framework 2.0 for SQL Server Data Provider: Part IIJan 05, 2006. ADO.NET 2.0 includes enhancements for SQL Server client application developers. Understanding these enhancements will help you design and implement effective client applications on the .NET Framework 2.0 platform
  • Important Aspects about ComponentsJan 12, 2006. In this article, I wil discuss some properties and key definitions about component programming.
  • Delay Signing an AssemblyJan 18, 2006. In this article we will elaborate the terminology Delay Signing as well as what it means. How it works and the approach to achieve it.
  • How to Read and Write System Registry Keys using C# (VS.Net 2005)Feb 09, 2006. Most of the time while working with the Enterprise Application will need to store the user preferences inside the windows system registry. In a general term Windows Registry is the database that holds all the settings Windows needs to function.
  • Wrapper Patterns in C#: Part IFeb 13, 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# wrapper rabbit hole and see how it is all possible with some patterns: Proxy, Decorator, and Adapter.
  • Wrapper Patterns in C#, Part II: The Proxy PatternFeb 14, 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# wrapper rabbit hole and see how it is all possible with some patterns: Proxy, Decorator, and Adapter.
  • 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.
  • Controlling behavior of existing services in systemFeb 23, 2006. This article shows how to access the windows services in your system and change the behavior of the services from your application.

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