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Converting .NET Framework VB.NET or Visual Basic 6.0 code to C#

Links and Downloads

Most .NET developers have a definate preference for using either VB.NET or C#. However, there may be many occasions on when it is preferable (or indeed essential) to use either VB.NET or C#. Common scenarios include:

  • A client specifies that all development must be carried out in a particular programming language.
  • A company has a policy that all development will be done in either VB.NET or C#.
  • A developer is much more familiar with one programming language than the other.

C# developers in particular are likely to come across a large number of legacy applications that need to be converted from Visual Basic 6.0 to C#, or find VB.NET code that needs to be converted to C#.

While there are a number of websites available that will convert small amounts of VB.NET to C#, they are very time consuming to use when an entire application has to be converted. A much better solution is to use an automated tool to handle the entire conversion process.

The VBConversions' VB.Net to C# converter will automate the process of converting entire applications to C# with the minimum of fuss. A unique selling point is that the tool will suggest changes that can be made to VB.NET code before it is converted to C#. This will greatly aid the conversion process and will lead to much better quality C# code being created by the conversion process.

Converting VB.NET ASP.NET Web Applications to C# Web Applications

The VBConversions' VB.Net to C# converter is also able to convert ASP.NET web applications written in VB.NET to their C# equivalents. Alas, there is no ASP to ASP.NET converter available, but you may find the ASP Documentation Tool useful for assessing what work would be involved in converting ASP to ASP.NET.

Converting Visual Basic 6.0 (VB) Applications to C# .NET

Although the VBConversions VB.Net to C# converter will not directly convert Visual Basic 6.0 applications to C#, it is possible to use a two stage process to convert them. The first stage involves using the Visual Basic 6.0 to VB.NET converter wizard that is built in to Visual Studio.NET (the VB.NET language parts of Visual Studio must be installed in order to use this). Once the application has been converted to VB.NET it is then possible to use the VB.Net to C# converter to convert the intermediate VB.NET application to .NET.

This two stage process would save many hours compared to converting the application by hand, and is the easiest way of converting legacy Visual Basic 6.0 applications to their C# equivalents.

Links and Downloads

Useful Development Tools

ASP Documentation Tool™
Automatically creates technical documentation for ASP 2.0 and 3.0 web applications written in VBScript and JScript. Documentation for Microsoft Access, SQL Server 7/2000 databases and Visual Basic 6.0 components associated with the web application can also be incorporated into the reports. Documentation is created in HTML, HTML Help and plain text formats.
   View Sample Output (HTML Help format) View Sample Output (HTML Help format).
   View Sample Output (HTML Format) View Sample Output (HTML Format).
   Download Trial Version Download Trial Version (5.2Mb ZIP file).

.NET Documentation Tool
Automatically creates technical documentation for .NET Framework applications written in C# or VB.NET (including ASP.NET). Documentation for SQL Server 7/2000/2005 databases and C#/VB.NET components associated with the web application can also be incorporated into the reports. Documentation is created in HTML, HTML Help and plain text formats. Additional support for ASP.NET web applications. A useful alternative to NDoc!
   View Sample Output (HTML Help format) View Sample Output (HTML Help format).
   View Sample Output (HTML Format) View Sample Output (HTML Format).
   Download Trial Version Download Trial Version (3Mb ZIP file).

SQL Documentation Tool
The SQL Documentation Tool creates technical documentation for Microsoft SQL Server 7.0, 2000 and 2005 databases. Technical documentation is created in HTML and HTML Help formats. The HTML Help format documentation is fully searchable and cross referenced. The SQL Documentation Tool documents SQL Server Tables, Views, Stored Procedures, Triggers, Table Relationships, Jobs and DTS Packages.
   View Sample Output (HTML Help format) View Sample Output (HTML Help format).
   View Sample Output (HTML Format) View Sample Output (HTML Format).
   Download Trial Version Download Trial Version (10.3Mb ZIP file).

VB Documentation Tool
The VB Documentation Tool creates technical documentation for Microsoft Visual Basic 6.0 projects. Technical documentation is created in HTML and HTML Help formats. The HTML Help format documentation is fully searchable and cross referenced.
   View Sample Output (HTML Help format) View Sample Output (HTML Help format).
   View Sample Output (HTML Format) View Sample Output (HTML Format).
   Download Trial Version Download Trial Version (1Mb ZIP file).

The Website Utility
The Website Utility examines websites for errors and areas that need to be optimised for search engines by using a built in web crawling engine. Errors checked for include broken or moved hyperlinks, missing page titles and missing meta tags. It also generates HTML for use in creating website site maps (table of contents pages - like this one), and is able to create both client-side JavaScript search engines and server-side ASP search engines and ASP.NET search engines for a website.
   View Sample Output (HTML Format) View Sample Output (HTML Format).
   Download Trial Version Download Trial Version (3Mb ZIP file).

Text Workbench
Text Workbench is a file search and replacement utility for text files and Microsoft Office documents. Make rapid file replacements on multiple files and folders full of files. Advanced replacement options include regular expressions support. It even works on remote file systems via FTP. A Regular Expression Laboratory allows advanced pattern matching and replacement expressions to be built and tested. This great utility will make your everyday development tasks much easier!
   Download Trial Version of Text Workbench Download Trial Version (3Mb ZIP file; you have the option to either install directly from this link or save the file for later installation).

Indexing Service Companion
The Indexing Service Companion is a utility that extends the functionality of the Microsoft Windows Indexing Service so that it is able to index content from any remote website and also from ODBC compliant databases. As such it can be used as a low cost alternative to Sharepoint's Search Services.
   View Product Documentation View Product Documentation (119K ZIP file).
   Try Sample Search Facility Try Sample Search Facility.
   Download Trial Version Download Trial Version (1.7Mb ZIP file).

ASP Spell Check
ASPSpellCheck is the easy way to add spell checking capabilities to your ASP or ASP.NET websites, Intranets and web applications. The utility allows you to add spell checking capabilities to any HTML text field or rich content editing text box. It works with all common web browsers, and there are no components or databases to install on the server.
   Read a review of the ASP Spell Check server component Read ASPSpellCheck Review.
   View Examples of the ASPSpellCheck component for adding spell checking capabilities to ASP web applications View ASPSpellCheck Examples.
   Download Trial Version of ASPSpellCheck Download Trial Version (3Mb ZIP file; you have the option to either install directly from this link or save the file for later installation).

Author details

Brett Burridge has worked as a web developer since 1997 and has developed web applications for a range of corporations, start up busiensses and educational establishments.

Brett is presently employed as an Internet developer and technical writer through his own company, Winnersh Triangle Web Solutions Limited. The company produces a number of innovative products, including a range of software documentation tools, which include the ASP Documentation Tool™, the .NET Documentation Tool for VB.NET and C#, and the SQL Server Documentation Tool. Other products include The Website Utility, which functions as a website error checker, search engine optimizer and ASP/ASP.NET search engine builder application.

As well as the ASPAlliance, Brett has written articles for Ariadne.ac.uk, ASPToday, the software documentation portal www.softwaredocumentation.info, and has contributed recipes to the ASP.NET Developer's Cookbook.    links

Outside web development, Brett is interested in travelling (here are my travel logs from New York, Hong Kong and Tokyo), digital photography (here's my photo gallery), tropical fishkeeping and collecting contemporary works of art by artists such as Doug Hyde.

Contact Brett by emailing

Indexing Service Companion - allows the Windows Indexing Service to index content from remote websites and ODBC databases!!!

Article history

"Converting .NET Framework VB.NET or Visual Basic 6.0 code to C#" published on ASPAlliance.com on 14 November 2006, last revised 16 August 2006.

ASP Kitchen: Classic ASP Articles: Converting .NET Framework VB.NET or Visual Basic 6.0 code to C#

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