Often in our projects we need to apply some kind of validation of the user input so we get the data we are expecting. For example, getting a valid email addresses or URL. I want to share with you a couple of String Class extensions you can use to see (and conform) whether the user typed a valid email or URL, this is not a silver bullet (there are always exceptions), but it can save you some time now and in future projects.
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With the RFC classes of the MBS Xojo Tools Plugin you can build RFC interfaces to SAP systems.
Comments closedAll of us are used to dealing with that web form where we select a country from a long, long list of more than 200 hundred countries. It would certainly be more useful, less stressful and a better usability practice to preselect the country name from the IP of the client visitor. Continue reading to learn how you can put a bit of intelligence into your web forms using a WebPopupMenu subclass.
Comments closedDepending on your style of coding the Enumeration Editor might be used regularly or not a lot. But, either way it probably contains a secret or two waiting for you.
Comments closedThe singleton design pattern has its place in the desktop environment where there will be only one user running the application, and when that user quits the app the singleton is destroyed. This doesn’t fit the requirements of a multi-user environment such as the web where many users will be accessing the application at once. I recently came across this issue when porting a desktop app to the web which required me to design a singleton class that is session sensitive. Here’s a walk through of how I achieved my goal. Please note that scopes are particularly important when creating this class.
Comments closedLearn a new tool to evaluate your app marketing. This is a tool commonly used in the food industry, but I’ll show you how you might be able to incorporate this tool into your business practices.
Comments closedThe ListBox is a great control for showing users lists of data, even data with lots and lots of rows. But the ListBox, being a…
Comments closedXojo is an easy-to-use Integrated Development Environment (IDE) and programming language that allows you to create and deploy all kinds of native apps and solutions on Desktop (Windows, macOS, Linux), Web, iOS and Raspberry Pi with Android on the horizon.
We often get questions from newcomers about how Xojo licenses work and what license options available. Read on to learn what Xojo license is right for your needs. At the end, if you still aren’t sure what license is right for you, you can get in touch with us and we’ll help you get what you need.
Comments closedWhile we all hope that the current pandemic will soon pass, it is prudent that we prepare for the possibility that it will not. That…
Comments closedIt has been tradition in software development for a new version of an app to go through a number of stages. Typically this starts with…
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