With the exception of some user control examples, I have tried to keep the code concise and easy to follow and compatible with most recent versions of VB.Net. You may need to add yor own data validation etc.
- Most of the functions on this site are either "standard code" or developed by DigitalDan. DigitalDan has released his functions as open-source, making the majority of functions freely available for use in any project (even commercial packages.)
- Some functions are based on the work of others (e.g. Calendrical and Planetary formula published by Meeus.) However, I have tried to select work with fairly relaxed copyright restrictions (e.g. acknowlege authors copyright/contribution.) Please respect the original authors copyright and comply with their requirements.
- The routines in this functionary often have minimal or zero data validation, this simplifies the code. Programmers should understand how a function works and blindly copy/pasting functions is not recommended. DigitalDan accepts no responsibility for any problems or issues linked to any function(s).
Known Problem with <, >, < and >
Most internet browsers use the symbols < and > to identify html tags. The code behind a website normally replaces < with < and > with > in order to
display the symbols correctly. If your browser copy/pastes the symbols as < and > you may need to manually replace all < with < and all > with >
The problem is unusual and normally associated with copying from the page source code instead of the content displayed in the normal browser.
What Next?
DigitalDan is considering the option of extending this functionary. Your are welcome to use the Contact Site option if you think I should include any of the following.
- Adding new functions to this VB.Net Functionary
- Mini-apps for developers (VB.Net 2026 and open source)
- Providing C#.Net translations for these VB.Net functions
- Client Side Website Functionary (HTML5, CSS, Javascript)
- Server Side Website Functionary (PHP)
- Legacy languages (RPG, Cobol, DL1, JCL, Early Basic, DOS)
DigitalDan.co.uk