Following up on the my post Check if a particular year is a LEAP year, here is a routine to check if a date is valid. By definition, a date is valid if all of these conditions are true … a) The year is an integer greater than or equal to 0 b) The month […]

By definition, a year is a LEAP year if all of these conditions are true … a) The number is a whole multiple of 4 b) If the number is a whole multiple of 100 it is also a whole multiple of 400 So, 1600 and 2000 are LEAP years … but 1700, 1800, 1900 […]

Here, I described how you would load items into a ListBox (or ComboBox) object from an external file … but what if your application required your user to add, change or modify the items in such a list … and save the contents of the ListBox to an external file … so it can be […]

If your VisualNEO Win application needs to display a count up (or down) of time elapsed (or remaining) … in hours, minutes and seconds … formated as HH:MM:SS … the idea/subroutine described below will help you to do this. First, create a Timer object called tc … configure it so … Start: is set to […]

For ListBox (or ComboBox) objects whose contents (items) remain unchanged, you just type the items into the List Items field at Design time. However, there are times when you require a different set of items to be loaded into such Boxes every time the VisualNEO Win created application is run … or the items are […]

Here, I described how you can make a random selection from a list of items … but there are times when you need to make such random selections without repeating any of the selections … this article details how you would go about implementing this with VisualNEO for Windows. In your App’s StartUp section … […]

Often, in VisualNEO for Windows, there is a need to make a random selection from a list of items … e.g. a list of fruits or vegetables or countries etc. … this article details how you would go about implementing this with VisualNEO Win. In your pub’s StartUp section … code something like this … […]