C# Corner

Resources  
  • C# IndexerJan 15, 2000. An indexer is a member that enables an object to be indexed in the same way as an array.
  • CSDownloadURL : Download Contents of a Web PageDec 03, 2000. CSDownloadURL is a class which has two functions - SetURL and DownloadURL. The set URL sets the current URL and GetDownload downloads the URL contents and returns its contents in a string.
  • Write data to an access database using SQL Query and ADO.NETDec 06, 2000. See how to use SQL Statements to write data to an access database.
  • GDI+ Tutorial for BeginnersDec 26, 2000. GDI+ is next evolution of GDI. In Visual Studio .NET, Microsoft has taken care of most of the GDI problems and have made it easy to use.
  • 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.
  • ADO.NET Database ExplorerJan 20, 2001. The sample connects to the SQL server database and shows you a tree view like interface of all the tables.
  • Get a database table propertiesJan 22, 2001. Get a table properties such as column names, types etc using DataColumn and DataTable.
  • Working with GDI+ Brushes Jan 30, 2001. This tutorial explains how to work with texture, solid, gradient, and hatch brushes.
  • Tutorial: Working with Toolbars in C#Jan 30, 2001. This tutorial explains you how to add toolbars to a form, load images to the toolbar buttons, and writing event handlers for toolbar buttons.
  • SQL Programming using .NETFeb 01, 2001. This program shows several data objects, some draw backs of each and some interesting things.
  • ADODataReader- Writing DataSets to XMLFeb 04, 2001. This file uses ADODataReader and other objects to write DataSets to XML and filling data from the XML files.
  • Chat Server and Client in C# Using Remoting TechnologyFeb 16, 2001. This application is a simple Chat server and Client, which is conversion of Java RMI chat server and client. The Java client was a Applet and present application client in Windows Forms.
  • Chat Server and Client in C# Using Remoting TechnolgyFeb 16, 2001. The application is a simple Chat server and Client, which is conversion of Java RMI chat server and client. The Java client was a Applet and present application client in WinForm.
  • Boxing and UnboxingFeb 21, 2001. Boxing and Unboxing are fairly new terms introduced in C#. Author explains some concept of them.
  • Schedule Program Using C#Feb 22, 2001. The Scheduling program consists of three main classes. The Form, the DatabaseController used to read and write scheduled events into the database and RowData which corresponds to data extracted from a row in the database.
  • Reflection in .NETFeb 26, 2001. Refelction is the mechanism of discovering class information solely at run time. Wondering where it would be useful?
  • Deploying Programs in C#Mar 08, 2001. Deploying projects in Visual Studio.NET is fairly straightfoward. Most of the process is automated for you through some convenient wizards so it doesn't require much effort.
  • Loading a Form IconMar 13, 2001. In .NET framework, the Icon class represents a Windows icon, which is a small bitmap image used to represent an object. The icon class is defined in System.Drawing namespace.
  • View Relational Data in a DataGridMar 15, 2001. This article explains you how easy is reading a database and displaying in a grid using DataSet.
  • ADO Vs ADO.NET Web ServiceMar 22, 2001. In this example I'd like to demonstrate one of the most interesting features of the .NET runtime - the concept of Webservices.
  • Web Request ClassApr 04, 2001. This is a simple application that the gets the source of a webpage via the WebRequest Object.
  • 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.
  • Working with Relational Data in ADO.NETMay 03, 2001. Working with hierarchal data was not that easy with the previous version of ADO.
  • .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).
  • 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.
  • 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.
  • Calling Java Program from C#Jul 18, 2001. This article shows you how to call a Java program from C#.
  • Exception HandlingJul 21, 2001. Exceptions in C# provide a structured, and type-safe way of handling both system level and application level error conditions. The exception mechanism in C# is very similar to that of C++, with a few important differences.
  • Events and DelegatesJul 26, 2001. Events in C# are based on delegates, the Originator defining one or more callback functions as delegates and the listening object then implements then.
  • 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.
  • Working with GDI+ Pens and FontsJul 30, 2001. The System.Drawinging.Pen and System.Drawing.Font classes represent pen and font objects in GDI+.
  • Eater Game in C#Jul 31, 2001. This is a simple game written in C# in which the user moves a packman like player around the form and gobbles up red dots. The object is to get all the dots in as quick a time as you can.
  • Compute Feature of DataTableAug 01, 2001. The following code is for implementing least known feature of DataTable Compute() method.
  • Text Reader and Text Writer in C#Aug 03, 2001. A detailed tutorial and C# types such as Value and Reference types with sample examples.
  • Drawing With no OnPaint MethodAug 09, 2001. In this sample example, I draw GDI+ objects on button click.
  • XML GeneratorAug 17, 2001. This article is about advance use of reflection package in Csharp.
  • 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.
  • 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.
  • Interface Components Interoperability Aug 27, 2001. The fundamental concept behind both COM and DCOM is the interface. An interface is an agreement between a client and an object about how they will communicate with each other.
  • 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.
  • Multiple Inheritance in C#Aug 29, 2001. Can you inherit from multiple classes in C#? Simply put, this cannot be done. However there are ways around it. From a design perspective you must ask yourself, will a Class fully represent an object?
  • Web Browser in C# and VB.NETSep 11, 2001. This article explains how to add and web browser ActiveX to your project to developer your own customized web browser.
  • 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.
  • 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.
  • Language Independence from COM to .NETOct 03, 2001. This article covers the subject regarding Language Independence. This term Language Independent means one can create an application using various languages. This Language independent starts from past COM (OLE & ActiveX) to present .Net.Let us see in detail.
  • 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).
  • Understanding Structures in C#Oct 23, 2001. A structure in C# is simply a composite data type consisting of a number elements of other types.
  • Pointers in C#Oct 25, 2001. C# also supports pointers in a limited extent. A pointer is nothing but a variable that holds the memory address of another type. But in C# pointer can only be declared to hold the memory address of value types and arrays.
  • Enumerators in C#Oct 25, 2001. An enumeration (enum) is a special form of value type, which inherits from System.Enum and supplies alternate names for the values of an underlying primitive type.
  • Exploring delegates in C#Oct 30, 2001. Delegates are a kind of type safe function pointers which are actually declared as class derived from System.MulticastDelegate.
  • Mapping Objects to Relational DatabasesNov 01, 2001. The application generates C# Class files for each table in a relational database. I have used Mysql and ODBC.NET for this project. The application only supports MySQL right now.
  • Implementing Stacks in C#Nov 06, 2001. With the help of C# we can also implement ADT (Abstract Data Types) with little effort. An example of ADT is a simple stack of integers.
  • 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.
  • Using Interfaces in .NET RemotingNov 30, 2001. In this article, we will create a remote object that will return rows from a database table. For the sake of simplicity I have used the NorthWind database that is packed with the installation of the Microsoft SQL Server.
  • Creating a Custom Data AdapterDec 03, 2001. A good programmer needs to know how to work with ADO.NET DataAdapters at the code level.
  • 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.
  • Abstract Factory Patterns in C#Dec 10, 2001. The ABSTRACT FACTORY PATTERN comes under the classification of Creational Patterns. The Abstract Factory provides an interface to create and return one of several families of related objects.
  • Using ADO RecordSet in ADO.NETDec 10, 2001. Using ADO recordset in managed code using ADO.NET data providers is pretty simple. Visual studio .NET provides you to add reference to the COM libraries. In this article I'll show you how to access data using ADO recordset and fill a ADO.NET data provider from the recordset data.
  • Factory Patterns in C#Dec 10, 2001. The FACTORY METHOD PATTERN comes under the classification of Creational Patterns. The creational patterns deals with the best way to create objects.
  • Builder Patterns in C#Dec 20, 2001. Builder is an object creational design pattern that codifies the construction process outside of the actual steps that carries out the construction - thus allowing the construction process itself to be reused.
  • Graphics Programming in C#Dec 26, 2001. The new improved version of GDI is called GDI+. The .NET framework provides a rich set of classes, methods and events for developing applications with graphical capabilities.
  • Prototype Patterns in C#Dec 26, 2001. The PROTOTYPE PATTERN comes under the classification of Creational Patterns. The creational patterns deals with the best way to create objects. This helps to copy or clone the existing objects to create new ones rather than creating from the scratch.
  • Working With Data TypesJan 02, 2002. Explains data types in C# and how to work with them.
  • Adapter Pattern in C#Jan 03, 2002. The Gang Of Four (GoF) defined the Adaptor pattern as follows in their most famous book "Design Patterns" Gamma et al. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces."
  • Exception Handling in C#Jan 03, 2002. In C# Exception is a class in the system namespace. An object of an exception is that describe the exceptional conditions occur in a code That means, we are catching an exception, creating an object of it, and then throwing it. C# supports exceptions in a very much the same way as Java and C++.
  • Overview of Automated TranscationsJan 04, 2002. Two or more .NET Framework objects can participate in the same transaction. One or more .NET Framework objects can participate in the same transaction as one or more COM+ objects. All objects must be hosted in Microsoft Windows 2K Component Services so as to receive services such as transaction processing.
  • Playing with 3-D Coordinate Space in C#, GDI+ and .NETJan 10, 2002. This article show to dealing with a 3-D Coordinate System.
  • Interrogating Systems with WMIJan 18, 2002. WMI allows you to retrieve information such as hardware types, software installed and much much more.
  • Hangman Program Using C#Jan 19, 2002. Hangman was created to illustrate several features of C# including GDI+, string manipulation, array processing, using properties, as well as simple creation of objects.
  • Composite Patterns in C#Jan 23, 2002. A Composite is a tree structure consisting of individual objects mixed with compositions of objects, that is, objects that have other objects as their children.
  • 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.
  • Yahtzee Program Using C#: Part IIJan 31, 2002. This is an update of the Yahtzee program for VS 2005. Included in this version is a Game Reset and a High Score Tracker. The Top Ten High Scores are tracked using an Array with sortable components. In this article we will talk about the IComparable interface used to make an object stored in an array sortable.
  • Graphics using GDI+Feb 05, 2002. This sample project shows how to draw various graphics objects on a Form using GDI+ objects.
  • Creational Pattern - Abstract FactoryFeb 11, 2002. An abstract factory provides an interface for creating families of related objects without specifying their concrete classes. Sometimes one wants to construct an instance of one of a suite of classes, deciding between the classes at the time of instantiation.
  • 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.
  • .NET Static Variables : Better than Application!Feb 22, 2002. In traditional ASP, we always had the Application object to store application-wide variables in.
  • SOAP Message with Binary AttachmentsFeb 28, 2002. Recently Microsoft announced new format called DIME: Sending Binary Data with Your SOAP Messages.
  • Sorting Object Using IComparer and IComparable Interfaces Mar 01, 2002. The System.Collections namespace contains interfaces and classes that define various...
  • 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.
  • 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.
  • 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.
  • Prototype PatternMar 22, 2002. The Prototype pattern is used when creating an instance of a class is very time-consuming or complex in some way.
  • Function Overriding and Its Impact During Object InitializationMar 25, 2002. Different languages have different ways to initialize an object. C# and Java both have almost similar ways to initialize an object with few subtle differences.
  • Saving and Reading Object to/from a DatabaseMar 25, 2002. An object is a memory stream, which is hard to write using the normal methods. In this article, I show how you can save objects in a database and read back from the database.
  • .NET Remoting: The Interface ApproachMar 26, 2002. In this article, we will create a remote object, and access this object using the Interface. The object returns rows from a database table.
  • .NET Remoting: The Simple ApproachMar 26, 2002. .NET Remoting provides a powerful and high performance way of working with remote objects. Architecturally, .NET Remote objects are a perfect fit for accessing resources across the network without the overhead posed by SOAP based Web services.
  • .NET Remoting: The Interface ApproachMar 26, 2002. .NET Remoting provides a powerful and high performance way of working with remote objects. Architecturally, .NET Remote objects are a perfect fit for accessing resources across the network without the overhead posed by SOAP based Web services. .NET Remoting is easier to use than Java's RMI, but definitely more difficult than creating a WebService. In this article, we will create a remote object, and access this object using the Interface.
  • Returning a DataSet From a Web Services: Step-by-StepApr 01, 2002. This Example Shows how to create a Web service which returns a DataSet object and a Client which displays the DataSet in a Grid.
  • .NET COM Interoperability - Part 1: Using COM Components from .NET FrameworkApr 02, 2002. The DotNet framework exposes COM objects through a proxy called the runtime callable wrapper (RCW). The primary function of RCW is to marshal call between a managed client (.Net) and unmanaged COM object. The runtime maintains a single RCW for each COM object.
  • .NET COM Interoperability - Part 2: Using .NET Component from COMApr 02, 2002. When a COM client calls a DotNet object, the DotNet framework will create a COM callable wrapper (CCW). COM clients use the CCW as a proxy for the managed object.
  • Owner Draw Menus in C#Apr 03, 2002. This article will explain to you how we can draw our own menu items with our own fonts , pictures , background color and other graphics objects.
  • 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.
  • 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.

About object-types

NA

SPONSORED BY

File APIs for .NET
Aspose are the market leader of .NET APIs for file business formats – natively work with DOCX, XLSX, PPT, PDF, MSG, MPP, images formats and many more!
Download Free eBooks