C# Corner

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  • C# Installation and CompilationSep 29, 2000. This article explains what you need to install on your machine to run C# and where to find the downloads.
  • How to read a value from Console?Oct 07, 2000. This article explains how to get the input from the console using ReadLine.
  • Boxing and UnboxingFeb 21, 2001. Boxing and Unboxing are fairly new terms introduced in C#. Author explains some concept of them.
  • 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.
  • Using the out ParameterMar 07, 2001. Did you ever need your method return more than one value? The out keyword can be used to do the same.
  • Windows Calculator in C#Mar 27, 2001. This is a simple Calculator application as you will find in a Windows accessories.
  • 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.
  • Find Files in C#May 01, 2001. I have developed a small application in c#, which helps in searching u'r hard disk for files of the desired extention.
  • Serializing Objects in C#May 14, 2001. In simple words serialization is a process of storing the object instance to a disk file. Serialization stores state of the object i.e. member variable values to disk. Deserialization is reverse of serialization.
  • Properties in C#: New Cover on old book Jun 06, 2001. Properties are accessor methods whose job is to retrieve and set the values of fields.
  • The out and ref Paramerter in C#Jun 12, 2001. The out and the ref parameters are used to return values in the same variables, that you pass an an argument of a method. These both parameters are very useful when your method needs to return more than one values.
  • 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.
  • What & Why : Properties :: Part 2Jul 09, 2001. In the part 1 of this series, I discussed about the get method of the properties, with the help of which you can make your variable so that nobody can modify the value of the variable.
  • 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.
  • 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.
  • Basic Database operations using ADO.NETAug 21, 2001. I found very interesting database features incorporated into the .NET as ADO.NET.
  • Web Services between .NET, Java and MS SOAP Toolkit: Part IAug 24, 2001. WinGhost 2.0 application allows you to show and hide applications running on your machine. I find this program useful at my work as I do lot of programming at any given time I can have a bunch windows open. I use it normally to hide just my windows I don't access that often.
  • Validation Controls in Web Forms: Part IAug 24, 2001. Validation is one of the less talked about areas – often taken for granted.
  • Passing Const Parameter to Functions in C#/C++/VB ComparedAug 30, 2001. Parameter passing to a function is extremely important in all programming languages. The desire to keep the passed parameter intact forced the compiler designers to add various keywords to the programming languages.
  • Modest Introduction to IL Assembly LanguageSep 03, 2001. Since I received copy of Visual Studio .NET Beta 2 and did not manage to find “ILAssemblyLanguageProgrammersReference.doc” which was included in beta 1 I decided to share my experience with other assembly enthusiasts.
  • Constructor, Destructor and ILASMSep 20, 2001. I find C# a very interesting language and it also comes handy to analyze ILASM code.
  • 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.
  • GUI Based Opinion PollSep 26, 2001. This is a article on how to create a opinion poll in C#. It creates a Text file on your c drive storing the voting parameters in it.
  • Method Parameters in C#Oct 15, 2001. This article describes different method parameters such as value parameters, reference parameters, output parameters, and parameter 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.
  • 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.
  • Debugging "Rubber Band Effect"Nov 06, 2001. Bug fixes for Rubber Band Effect in a form by Simon Bond demonstrated a small but useful rubber band effect application. If you play with the application for a while, however, you may find one major problem with it.
  • Charting in GDI+Nov 07, 2001. Here is an example of creating simple charts using GDI+ commands in C#. I have used the random class to create 5 random percentage values. I then use GDI+ to plot these values on a chart.
  • Working With Data TypesJan 02, 2002. Explains data types in C# and how to work with them.
  • Using MS Agent in C#-Part-I(Text To Speech)Jan 15, 2002. This article explains how to use MS Agent to write text-to-speech applications using C# and .NET.
  • World Clock Using Windows FormsFeb 11, 2002. I developed a C# application for finding World Timings given the US Central Timing.
  • Marble Solitaire Solution Display in GDI+Feb 13, 2002. The application finds and displays solutions to a game of solitaire. The application was written using Visual Studio.NET Version 7.0.9254. The test suite was written using NUnit, which is a .NET port of JUnit.
  • N-Tier Development with Microsoft .NET : Part IFeb 15, 2002. The purpose of this article is to examine a proof of concept on an architecture that follows the DNA pattern on concept only.
  • 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.
  • A Shaped Windows Forms Application with Variable OpacityMar 11, 2002. This application demonstrates two simple techniques that beginners might find useful in developing creative new looks for Windows applications.
  • 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.
  • Tutorial: Capturing and Running IE Instances in a Windows controlMar 15, 2002. In this article we are going to study how to find the running instances of Internet Explorer on your machine.
  • 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.
  • Globalized Property GridApr 17, 2002. The property grid is a nice control to display properties and values. You create an instance of your class and assign it to the property grid. By using reflection a property grid extracts the properties of the class and displays its values.
  • A Database Component: Inserting Serializable ObjectsApr 23, 2002. The attached zip file contains two projects - a database component (DLL) project and a Windows forms project called Test. Both projects are written and compiled using Visual Studio .NET version 1.0.
  • 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.
  • Sorting MultiColumn ListView Windows Forms ControlMay 20, 2002. If you want to sort on the first column of a ListView, simply click the Sorting in the properties Window and choose Ascending or Descending as a value. If you want to do sorting in all the columns of a ListView, you need to write custom sorting using the ListViewItemSorter property.
  • 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.
  • DataGrid Customization: Part-1Jun 25, 2002. In this article, I will discuss some DataGrid customization tips such as how to I get the name and index of the column headers and how do I find out if mouse click right click was on a column.
  • A Generic Data Access Component using Factory PatternJul 30, 2002. the article A Generic Data Access Component using Factory Pattern provides a very good way of creating ADO.Net data provider independent applications, but there is one problem with it. Different ADO.Net data providers use different approaches in labeling of parameters in SQL statement.
  • DataGrid Customization Part-II: Custom Sorting and DataGrid Column HidingAug 13, 2002. How to I get the name and index of the Column headers? How do I find out if mouse click right click was on a column
  • Hex Colors in C#Sep 05, 2002. Currently I am developing a shareware application for generating image galleries for the web. There is a template engine built in that allows the user to specify colors as hexadecimal values, plus many other features.
  • Sorting using MultithreadingNov 13, 2002. This is simple multithreading application that sort integers values in an array.
  • 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.
  • SQL Demo Login in C#Feb 23, 2003. This sample code contains a reusable control that allows you to build a dialog box that queries for SQL-Server connection parameters.
  • ShootDraw: Managed DirectX Application WizardMar 10, 2003. The Managed DirectX Application Wizard has created this "ShootDDraw" project for you as a starting point.This file contains a summary of what you will find in each of the files that make up your project.
  • J2EE to .NET Migration: Quick TipsMar 26, 2003. Here are some Quick tips to get you started, in case you need to migrate a J2EE based application to a .NET based application.
  • Making Thumbnails of Transparent Images in .NET and C#Mar 28, 2003. When I started writing web applications using .NET, I found myself in need to dynamically create thumbnails of images that could be uploaded by the user or pulled from a database.
  • 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.
  • FTP Client Library for C#Apr 26, 2003. Finding a fully working, lightweight FTP Client that had no GUI, was free, and came with source was difficult.
  • 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.
  • 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.
  • 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.
  • DataGrid and CheckBox ControlsJun 17, 2003. How to have checkbox that is checked or unchecked depending on a field value stored in the Database, and then allow the user to click on it and record the new checkbox state in the database.
  • 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.
  • Lengthy Operations on Single Thread in .NET ApplicationsJul 08, 2003. In this article I discuss how the lenghty operations can be handled in a .NET application. I also discuss how the stack trace can be examined to find any specific methods.
  • SMTP InternationalizationJul 16, 2003. You can find many articles dedicated to C# SMTP implementation on this or other sites.
  • Format DateTime Values in XML Extracted From DataSet Jul 17, 2003. In this article we'll see how to specify the format of DateTime values extracted from the ADO.NET DataSet and to verify we will write formatted contents in xml file.
  • Handling Null Values in DataGridJul 17, 2003. This article shows you how to handle no data found or null values in an ASP.NET DataGrid control.
  • 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.
  • Deleting a DataGrid Data Based on a Column ValueJul 24, 2003. In this article we'll see how to delete the records of a DataGrid based on a column value in the database table.
  • C# MethodsAug 05, 2003. This article explains hot to define and use methods in C#.
  • User Controls in Internet ExplorerAug 13, 2003. WinGhost 2.0 application allows you to show and hide applications running on your machine. I find this program useful at my work as I do lot of programming at any given time I can have a bunch windows open. I use it normally to hide just my windows I don't access that often.
  • EggTimer in C#Aug 26, 2003. This simple timer app will count down from whatever value is set in the textbox.
  • Interlocking ThreadsSep 10, 2003. Recently, I was building multi-threaded applications and noticed some intermittent data inconsistency. Soon, I found the culprit was locking mechanism. After doing some research, I gathered the following information and as usual decide to share with you guys.
  • 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.
  • Enter Null Values for DateTime Column of SQL ServerSep 26, 2003. Inserting a null value to the DateTime Field in SQL Server is one of the most common issues giving various errors. Even if one enters null values the value in the database is some default value as 1/1/1900 12:00:00 AM.
  • Creating Word Find Pzzules in C# and GDI+Sep 30, 2003. Perusing the newsstands in New York you'll find newspapers, TV-Guides, magazines, and even books. In the magazine section you'll often find crosswords and books containing the puzzles you'll see in figure 1. The books contain pages and pages of puzzles with hidden words contained in the matrix of letters in which you can spend time going blind trying to find.
  • Creating Word Find Pzzules in C# and GDI+Sep 30, 2003. In the past I have been guilty of trying a few of word find puzzles myself, so I figured why not give it a go it .NET. The Word Find creator reads a MSDE database of Words and Categories.
  • Creating Word Find Puzzles for the Web in C# and GDI+ Part IIOct 06, 2003. This article shows you how to create Word Find Puzzle application for the Web using C#, GDI+, and ASP.NET.
  • 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.
  • Directory Picker Pro in C#Nov 24, 2003. In my latest project I needed a dialog for picking a directory. I searched through the web, but found nothing that looked nice. First of all I wanted a TreeView for display, and I wanted to view all system drives (with correct names and icons).
  • Display Alphabetically Sorted Data in a Data GridDec 24, 2003. This code sample shows you how to display data sorted alphabetically based on the values in the database.
  • Debugging a Compiled ComponentFeb 02, 2004. After an assembly is compiled into a dll in a release mode, it is very difficult to gather information from it such as runtime performance, parameters values, etc.
  • 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.
  • 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.
  • 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.
  • 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.
  • Extreme Programming (XP)Feb 18, 2004. Extreme Programming (XP) is a discipline of software development based on values of simplicity, communication & feedback. It works by bringing the whole team together in the presence of simple practices.
  • An introduction to Matisse, a post-relational database for .NET - Part 1Mar 06, 2004. When it comes to database for .NET, there are several options in addition to the well known ones such as SQL Server or MySQL. One of them is Matisse, a post-relational database by Matisse Software.
  • The Matrix Class and TransformationsApr 01, 2004. Matrices play a vital role in the transformation process. In GDI+, the Matrix class represents a 3×2 matrix that contains x, y, and w values in the first, second, and third columns, respectively.
  • Normal Distribution Implementation in C#Apr 13, 2004. The attached source code is a C# normal distribution class. The probability density function (PDF) and cumulative distribution function (CDF) can be computed for a given x-value.
  • Populate SQL Servers and Databases dynamically in C#May 27, 2004. The attached source code is a class that provides methods to populate an array with the available SQL Server and databases on your network dynamically.
  • Setting Ink Overlay Properties in Tablet PCJun 02, 2004. In this article, I will write an application that allows us to set the Ink Overlay properties dynamically based on the values selected by the user.
  • 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.
  • 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.

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