C# Corner

Resources  
  • Asynchronous Request in .NET (C#)Jan 09, 2000. This code sample shows how to call a COM component in .NET framework using C#.
  • I'm having trouble implementing IObjectSafety. IE keeps telling me that my controls isn't safe. Why?Aug 15, 2000. This article explains about how to implement the IObjectSafety. ATL's IObjectSafetyImpl class appears to have a few bugs in it. The code below works great.
  • 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#.
  • Introduction to SOAPMar 22, 2001. Since the release I have been fascinated with this thing called SOAP, This bubbly new protocol backed by the power of XML is certainly going to make waves in the world of distributed computing. The first thing which comes into our mind is “Why the heck we didn’t think of this before?
  • Accessing .NET Components from COM Clients and COM components from .NET ClientsMar 26, 2001. In this article I am going to explain how to access a .NET component from a COM client and accessing COM from .NET clients.
  • Using Reflection and With Class2000 to view the .NET System.Drawing library Part IMay 29, 2001. Using the power of .NET and the power of COM InterOperability through WithClass 2000, you can view the System.Drawing library in a rough UML diagram.
  • Com and Component creation in C#Jun 09, 2001. Component is nothing but the reusable piece of software in binary form that can be plugged into other components from other vendors.
  • Net DDE to DOTNET RemotingJul 02, 2001. This article travel through time to trace the genesis of Dot Net Remoting right from RPC to RMI till SOAP.
  • 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.
  • WhoIs Sample CodeAug 27, 2001. Sample example shows you how to implement WhoIs...
  • An insight into Code Reusability and COM Interoperability : Part IAug 28, 2001. Code reusability is the art of using existing code to achieve better productivity and ease of maintenance. The concept of reusability is not new. Its existence has been evident since the evolution of mankind.
  • Realtime Stock Quotes into Excel using .NETSep 03, 2001. I may seem a little Bullish on .NET, but I was able to create this application fairly quickly in C#.
  • 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.
  • 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.
  • Components in C#Nov 06, 2001. The components creation and usage in C# is much more simple than earlier technologies like C++, ATL, COM.
  • An insight into Code Reusability and COM Interoperability - Part 2Nov 26, 2001. We have mushrooms of network systems running across the globe based on many proprietary protocols. In order to integrate these systems to communicate with each other in a more meaningful way, developers or organizations have to face an uphill task.
  • How To Open and Read an Excel Spreadsheet into a ListView in .NETNov 26, 2001. The Interoperability services make it very easy to work with COM Capable Applications such as Word and Excel.
  • 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.
  • XP, Component Services and .NETDec 13, 2001. First of all, COM+ does revolutionize COM; it is not only a superior new version of the COM programming model it is also a new platform to design and develop components. In addition, COM+ Services in XP does have some differences from Windows 2000; also XP and COM+ 1.5 offer a richer set of services than was available in COM+ 1.0. This article will describe the basic component services on the XP.
  • C# and ActiveX DLLDec 14, 2001. As you know with Visual Basic 6.0, it is possible develop a COM server and implement them in a Visual Basic client program. But this is being done by using Visual Basic. You may wonder about the idea of calling this DLL in a C# Application. Well, C# language provides us a way to call this COM server in a program. When we compile a C# program an Intermediate Language is generated and it is called as Managed Code.
  • 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.
  • Creating an Excel Spreadsheet ProgrammaticallyJan 22, 2002. The Interoperability services make it very easy to work with COM Capable Applications such as Word and Excel. This article reveals using Excel from a managed application. Excel is the spreadsheet component of Microsoft Office 2000.
  • Creating an Excel Spreadsheet ProgrammaticallyJan 22, 2002. The Interoperability services make it very easy to work with COM Capable Applications such as Word and Excel. This article reveals using Excel from a managed application. Excel is the spreadsheet component of Microsoft Office 2000.
  • .NET Framework and Web Services - Part 1Jan 28, 2002. The .NET Framework is a new computing platform designed to simplify Windows application development in the highly distributed environment of the Internet. Common Language Runtime (CLR) is the Heart of the .NET Framework.
  • Creating and Opening Microsoft Word Document from .NET Using C#Mar 08, 2002. This article is being written in response to a couple inquiries on the question, "How do I open a word document from .NET?".
  • JIT CodingMar 11, 2002. One not so well known feature of .NET platform is possibility to invoke compiler and practically create code and assembly from running instance of application. It is possible to do that in two ways. First one is a bit simpler and involves namespaces System.CodeDom and System.CodeDom.Compiler, second one is more efficient and utilizes namespace System.Reflection.Emit. Since there are very few examples about how to use System.CodeDom.Compiler I will start with it.
  • Calling Managed Code from Unmanaged CodeMar 11, 2002. One significant part of developers (including myself) are doing some kind of automation of Microsoft Office. So I will concentrate on opposing side of problem, how to use managed assembly from MS Office or VB script. In this article, I will discuss how to call managed code from unmanaged code.
  • .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.
  • Poorman's Installation program in C# and .NETApr 08, 2002. Installation programs can be quite expensive these days. Although programs such as Wise and InstallShield have fantastic features and are fairly comprehensive, sometimes you just want to do the easy installation of copying and pasting files into a directory and perhaps placing a shortcut in the start menu.
  • Space Breakout - 2D Game Developed using DirectX and C#Apr 11, 2002. GDI+ is a feature rich graphics API that makes sophisticated graphical effects highly accessible to the C# developers. Unfortunately if youve tried to develop smooth detailed animation using GDI+ you have undoubtedly discovered that just how slow it can be. Consequently it is not particularly suited to games development, if you want to really take advantage of your 1 gig + processor and that fancy new graphics card youre going to have to get a little more low level and dirty, enter Microsofts DirectX API.
  • Using Microsoft Agent with C#May 04, 2002. This article explains how to include MS Agent into an simple Windows Form based application using C#.
  • Spell Check Web ServiceMay 31, 2002. In this example we will create a Web Service which provides spell check functionality.
  • Deploying a COM Component from C#Jul 08, 2002. Here is some code to help you to deploy a COM component from C#. I needed to programmatically deploy a project that would be registered as COM object (not COM+) and be installed into GAC. The following two classes will help in this objective.
  • Using Multimedia Controls in .NET through COM InteroperabilityAug 01, 2002. In this article I'll try to explain the issue of the COM Interoperability and how to use Multimedia Device controls.
  • Welcome to DX-CornerAug 14, 2002. In this column we will explore the COM interoperability of DirectX and focus on game programming with C#.
  • Double Buffer Drawing with DirectDraw: Part1Aug 15, 2002. Because we will be primary focusing on 2D game programming in the first articles, we will use the DirectX7 API which is perfect for its DirectDraw class and simplicity. Don’t worry for not having the right DLL because DirectX8 has full backward compatibility to DirectX7 and the COM object should already be available on your computer if you have DirectX 8 installed.
  • XML News Feeds from Harrison LogicSep 04, 2002. This application provides a compilation of news headlines from many sources, using the MoreOver.com's XML service.
  • 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.
  • ATL COM Component, ASP.NET Web Service, and VB ClientOct 14, 2002. This article describes how to use ATL COM Components in ASP.Net web service and how to consume the ASP.Net Web Service from Visual Basic 6 Client. Ultimately the VB6 client calls the method of the COM component created in Visual C++ through the ASP.Net Web Service.
  • Platform Invocation Services in .NET FrameworkOct 25, 2002. This article will cover the details of Platform Invocation Services provided in .Net Framework. Platform Invoke Services acts as a bridge between the managed and unmanaged code. This service enables managed code to call unmanaged functions which are being exposed by any dynamic link libraries (DLL’s) such as Win32 API’s or any custom DLLs.
  • COM Interoperability Part 1: Using COM Components in .NET FrameworkJan 02, 2003. In this article we review the concepts & walk-through an example that demonstrates COM interoperability in .NET framework.
  • Invoking Unmanaged DLL Functions from Compact Framework for Pocket PC Jan 04, 2003. In this example we will use the Compact Framework to create a program containing a launch pad for the Pocket PC.
  • DTS Custom Task in C#Jan 28, 2003. During last year I wrote an article about DTS and how to use it in C#. In that article I stated that I didn’t manage to solve the problem related to CustomTask. Today I finally forced myself to tackle that problem again and here is the result. Writing simple CustomTask in C# is the easiest part.
  • Using C# and COM Interoperability to Extract from a UML tool into a Microsoft Word DocumentFeb 18, 2003. This article allows you to read the classes contained inside of WithClass 2000 into a Word Document using COM Interoperability for Word and COM Interoperability for WithClass and presents your classes in a kind of report.
  • Accessing Sharepoint Portal Server 2001 in .NETFeb 19, 2003. Sharepoint portal server provides a set of COM API that can be used to access its functionality from .NET applications via COM Interoperability. In this article, I will show you how to import SPP functionality in your .NET application.
  • 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.
  • 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.
  • Querying COM+ through Web ServicesMar 12, 2003. The most COM+ common administrative tasks (creating a COM+ application, installing/deleting a component, setting a component attribute) can be accomplished manually with the Component Services administrative tool from Management Console.
  • Writing an ActiveX Control in .NETMar 12, 2003. In this example, I will walk you through creating an ActiveX control that will show a simple user interface and accept input from a web page.
  • 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.
  • Creating Extensible and Flexible Hosted Applications: Part 2Apr 22, 2003. For this article I will use the same requirements and goals defined in part 1.
  • 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.
  • Pros and Cons of ActiveX and DHTML ControlsSep 16, 2003. This document shows a comparison study of web pages using simple ASP and ActiveX Controls. By the End of this document, we arrive at a conclusion of which one to use when.
  • Remoting in .NETSep 26, 2003. Distributed computing is an integral part of almost every software development. Before .Net Remoting, DCOM was the most used method of developing distributed application on Microsoft platform.
  • 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.
  • Creating MMC Snapin using C# (Part 1)Nov 24, 2003. This article and attached source code shows you how to create MMC Snapin using C#.
  • Migrating COM/DCOM Applications in Microsoft .NET FrameworkDec 09, 2003. In the current Internet scenario, various classic applications run on multiple networks. These applications could have been written using different languages like Visual Basic, Visual C++. For example, a retail organization would have different systems, such as an inventory management system, a bill of material systems, and a general ledger system, all implemented using various technologies available for application development. These systems need to be integrated to form a higher-level enterprise information system for an organization.
  • SOAP, .NET, and COM an Introduction - Part IIIFeb 02, 2004. This article starts with the basics of SOAP, SOAP XML model and its data types followed by the integration of SOAP functionality in .NET class library and how .NET developers can take advantages of SOAP in their applications.
  • SOAP, .NET, and COM - An Introduction: Part IFeb 02, 2004. This article starts with the basics of SOAP, SOAP XML model and its data types followed by the integration of SOAP functionality in .NET class library and how .NET developers can take advantages of SOAP in their applications.
  • SOAP, .NET, and COM an Introduction - Part IIFeb 02, 2004. This article starts with the basics of SOAP, SOAP XML model and its data types followed by the integration of SOAP functionality in .NET class library and how .NET developers can take advantages of SOAP in their applications.
  • Generating Microsoft Excel Reports in .NETMar 01, 2004. Microsoft Excel is installed on most computers these days since it is part of Microsoft office, and you can create detailed reports with Excel, but it will take some doing. I will attempt to show you how to create a simple report in Excel and some of the problems you may encounter along the way, this will work with Excel 97-2000.
  • Text-to-Speech Conversion in C#May 11, 2004. This article provides some elementary information about how to perform text to speech conversion using the speech SDK 5.1.
  • Web Services-InteroperabilityAug 04, 2004. In this article, we will see what interoperability is all about, comparison between Java and .NET interoperability, the benefits of and challenges faced in interoperability and the role of WS-I in this overall scenario.
  • LDAP, IIS and WinNT Directory ServicesAug 05, 2004. Directory Services have gained a lot of traction over the last few years. Directories are repositories of information and can be utilized in many different ways.
  • Interoperability in .NETAug 16, 2004. The important goals of .NET during its development was to promote interoperability with existing technologies.
  • Creating a Managed Automated Information Agent(mBot)Aug 16, 2004. mBot manages multiple RTC Client objects and exposes interfaces to them via .Net Remoting and .Net Web Services so that they can be managed and used remotely by other .Net applications or from entirely different platforms such as a Java J2EE/SOAP application like Jabber running on Linux or Windows.
  • Using Web Browser Options in C# and VB.NETSep 21, 2004. I wrote this article in Sept 2001 in response to a question on discussion forums - how to create a Web Browser in C#? Recently, I got a question on how to use Browser's Save As option programmatically. This article explains how to use Web Browser ActiveX to your project to developer your own customized Web Browser and use its options.
  • Query Tool to Excel using C# and .NETFeb 03, 2005. This article show how to use .NET's interoperability feature to pull the data directly into the spreadsheet.
  • SharpChess in C#Feb 10, 2005. SharpChess (http://www.sharpchess.com) is a computer application that enables you to play chess against the computer. It plays a challenging, tactical and, I'm told, "fun" game of chess.
  • ValidationScriptGeneratorMar 16, 2005. This article gives you a solution for generating a client side validation script in a component model that you can reuse in an ASP.NET project.
  • C# ICE-Cast MP3 Streaming for WinAmpApr 02, 2005. This little Web Application is for streaming MP3 files out to an WinAmp (www.winamp.com) interface.
  • Mapping Microsoft Excel columns with XML data (XML data integration) programmatically using a .Net Application.Apr 21, 2005. Using this program you can map Excel columns programmatically and generate an XML file containing the cell values that you had in your Excel document. After generating the XML file we can read it into a dataset.
  • How to Call a .NET Assembly From a SQL Server Scheduled JobApr 27, 2005. This article shows you a step-by-step implementation of a COM client (a SQL Server scheduled Job) using .NET and C#.
  • Windows Forms WebBrowser ControlNov 10, 2005. Windows Forms 1.0 lacked a Web Browser control. The work around was to use IE ActiveX control using COM Interop. Now Windows Forms 2.0 provides a Web Browser control, which is a managed wrapper of IE ActiveX control.
  • Generics in C# 2.0Apr 17, 2006. This articles comes in series with my last article - <a href= http://www.c-sharpcorner.com/UploadFile/Saurabh.Mishra/GenericsInC2PartI04122006074306AM/GenericsInC2PartI.aspx class=normal>Limitations in ArrayLists</a>. In this article, I specifically talk about Generics and how they improve upon arraylists and how they solve the issues posed by ArrayLists.
  • Aural Alert Generator (Voice and Tones)Aug 25, 2006. This article describes an application used to generate and test aural alerts; I wrote the application originally to allow me to define and test aural alerts for use in a couple of cockpit simulators, however, you could use the application to generate aural alerts for any purpose. The application also may be used to define voice messages which may be optionally saved as wave files for subsequent use in other applications.
  • Creating and Opening Microsoft Word Documents from .NET Using C#Oct 25, 2006. This article answers "how do I open a word document from within a .NET application."
  • Using a COM Callable Wrapper to Launch a Program from a Hyperlink in the WebBrowser ControlMar 02, 2007. This article describes how you can launch an application from a link inside the WebBrowser Control using a combination of javascript and an ActiveX Control created in C#.
  • Outlook with .NET 2.0 Jun 26, 2007. This article allows you to know how you can access different functionality of the outlook using .NET like create an appointment, Create contact item, task item and send a mail.
  • Using the Prosper API to Automate the Loan MarketApr 23, 2008. This article describes how to begin building applications specifically geared to the Prosper.com website. Prosper.com is a popular auction-style site that helps fulfill loans to individuals through a bidding process.
  • Working with Word using C# and COM ServerMay 21, 2008. This article shows us how to working with Word using C# and COM Server.
  • Introduction to the interoperation between .Net and COM: Part IOct 30, 2008. This is a brief introduction to the COM component object model.
  • How to create a COM application and consume it from within VC++6.0 - .Net and COM Part IIINov 01, 2008. In this article , I will expose another way to generate a COM component and I will give also a trick of how to consume this generated COM from within VC++ 6.0 application.
  • Host an OCX control within a .Net windows application-.Net and COM part IVNov 03, 2008. In this article I will explain how to host an OCX control within a .Net application.
  • How to create a COM object using VS 2008 and consume it from VB 6.0 client application: Part IINov 04, 2008. In this article, we will see how to create a simple COM application in Visual Studio 2008 and how to consume it from a VB6 client application.
  • Create DCOM application from within .Net environment: Part VNov 06, 2008. This article explains how to develop a DCOM (Distributed Component Model) application.
  • Integrate image scanning within a C# application: Part VINov 07, 2008. In this tutorial, I will show a very simple trick of how to integrate the functionality of scanning your documentation with a numeric scanner in your C# application.
  • Catch a Snapshot via your webcam using C#: Part VIINov 08, 2008. In this article, I will show how to catch a snapshot view from your personal web cam.
  • Integrate the web Webcam functionality using C#-.Net and COM part VIIINov 08, 2008. In this article, I will demonstrate a totally different technique to integrate the web cam functionality.
  • Managed code and unmanaged code in .NETJun 25, 2009. In this article I will try to explain you managed code and unmanaged code in .NET with help of diagram and its execution process.
  • Creating Transacted FilesSep 02, 2009. In this article we will learn how to create transactional files in Windows Vista and descendants.
  • Changing Screen Resolution Programmatically via DirectXOct 14, 2009. In this article, learn how to change display settings (resolution, bit count, etc.) via DirectX libraries.
  • Marshaling UnionsFeb 21, 2010. In this article you will learn how to marshal C/C++ Unions in C#.
  • Using Windows Media Player COM in WPFApr 08, 2010. In this article we will see how we can use Windows Media Player’s COM and its ActiveX Control in WPF.
  • Microsoft Agent; Providing a Custom Popup MenuMay 07, 2010. In this article we will see how to create a custom popup menu for your Microsoft Agent character.
  • Create Word Document without using COM component (Interop) or Third party API'sJun 24, 2010. In this article we will see how to create word document without using COM component (Interop) or Third party API's.
  • .NET Interoperability at a Glance 2 – Managed Code InteroperationDec 28, 2010. In the previous article, you learned what interoperability is and how it relates to the .NET Framework. In this article, we’re going to talk about the first form of interoperability, the Managed Code Interop. In the next article, we’ll talk about other forms.
  • How C# new dynamic type can simplify access to late bound COM objectJan 04, 2011.
  • .NET Interoperability at a Glance 3 - Unmanaged Code InteroperationJan 05, 2011. This is the last article in this series, it talks about unmanaged code interoperation; that’s, interop between .NET code and other code from other technologies (like Windows API, native libraries, COM, ActiveX, etc.)Be prepared!

About COM

NA
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