Blog

Below are some of my recent blog articles.

 

2021-11-07

Convert Boolean to Yes/No in XAML

On user interfaces, it maybe necessary to present a user-friendly version of a Boolean value. I.e. Instead of true or false, it is presented as yes or no. With Xamarin Forms and MVVM XAML bindings, it is possible to add converters on bindings. As can be seen in this example, it is really easy to […]

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2021-10-14

Connect remotely to Apple Mac from PC Visual Studio (Xamarin)

When developing mobile apps using a Xamarin project within Visual Studio, there is a choice of three platforms; Android, Apple iOS and Windows Mobile. However, as any developer will soon realise, whilst it is possible to build a cross platform application, it is not possible to work on all three platforms without the correct hardware. […]

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2021-07-03

Convert to Relative Time

Displaying date and time on a user interface is useful, but it is not always the most user-friendly way to present information. Imagine a social media website, which displays recent comments, but displays the date and time when a photo or comment was published. It requires more than just a quick glance to work out […]

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2020-07-31

Auto-Formatting UK Postcodes and validation

If you were to ask a user to provide a postcode little or no validation on, you would probably find that a postcode such as OX26 6XE would end up as something like Ox266xe or ox2 66xe. For some applications, this maybe acceptable. But for others, especially when integrating with address APIs, formatting maybe crucial. […]

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2020-02-23

Improving MVVM INotifyPropertyChanged

With a project that uses MVVM (Model-View-View Model) design pattern, INotifyPropertyChanged is often used to detect a property value change in an object. This is particularly pertinent as far as creating a two-way data binding. Typical Implementation Normally, the INotifyPropertyChanged is implemented in a similar pattern to the code below. This is something that makes […]

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