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Tag: Rapid Application Development

Creating a Number Class

In this tutorial I will show you how to create a Number class that can tell you when its value has been actually set, along with other methods to manage how it is used while demonstrating some common object-oriented techniques and features such as operator overloading. You’ll be able to create a Number from an Integer, Double or String.

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Filtering the Debugger

Starting with Xojo 2023r1 you’ll find a new feature in Xojo’s Debugger panel that allows you to filter the objects and variables displayed, even between different project runs! This lets you stay focused on the more important objects and variables instead of scrolling through the list of all entries.

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Testing REST-based Web Services

Using Xojo’s URLConnection to communicate with web services is pretty straightforward. But testing the actual REST API calls can get tricky. To make it easier to test and experiment with REST API calls, Paul created a app in Xojo for doing just this. He called it RESTy in its original format back in 2015. You can download the updated project here built with Xojo 2022r4.1.

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Algorithm: Equally Spaced Ranges

There are some situations where you may need a range of numbers that is equally spaced. For example, when given a minimum and a maximum value within which a set of numbers that need to be equally spaced. This is useful if you are designing an UI control displaying “ticks” or for the axis of a graphic chart displaying cartesian values. Continue reading to see a technique to do just this.

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Rate Limiting a Web Application

In this blog post I’ll show how to add rate limiting to your web application.  Rate limiting is used to frustrate abuse of your application by limiting access. The same technique can be used to limit access to your API server by recording the user’s ID instead of IP Address.

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Build Settings: New macOS Minimum Version and Windows Supported Versions

Starting with Xojo 2022r4 we’ve helped you clarify the minimum operating system needed for your compiled desktop apps to run on. You will be able to set the macOS minimum version required to run your compiled apps. Plus updated “Runs On” build settings for Windows 10/11 and Windows 7/8 compatibility. Continue reading to learn how!

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