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Notewriter Blog posts

Xamarin Forms Carousel View

Xamarin Forms has become for me, a great tool for easily creative mobile applications with speed. But where it has many great features, it also unfortunately still has a lot of bugs and incomplete or experimental features. CarouselView is one of them, so lets look at possible uses for the CarouselView, its upsides and its downfalls. We'll also look into possible alternatives and whether you should use them or not. - read more.

29 Jul 2019

How To: Firebase Cloud Messaging on Android and iOS with Xamarin

Just a quick tutorial on how to get Firebase Cloud Messaging working on Xamarin Forms for both Android and iOS. Android: text See http://lukealderton.com/blog/posts/2017/january/systemtypeloadexceptio... - read more.

1 May 2019

SQL Select Row Count With Results

When you're working with a large database and have to search that result set with paging, your first thought might be to select all results and then do the manipulation/count on the web server, sure that'd work, but it isn't exactly the most performant approach. Let's take a look at other ways we can produce some easily understood and most importantly, fast code. - read more.

27 Mar 2019

Fixed: Unhandled Exception: Java.Lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.ContentFrameLayout.setId(int)' on a null object reference occurred

Looking into the solution for the Xamarin bug where developers are presented with the 'Unhandled Exception: Java.Lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.ContentFrameLayout.setId(int)' on a null object reference occurred' message when deploying an app to their device. - read more.

11 Mar 2019

Umbraco Get Current Member or Member By ID

It seems like most pages when you Google for getting the current member or a member by id in Umbraco seem to be from back in 2010 or 2012, well things have changed since the businesslogic days and we're now in the world of Umbraco Services, how do we use them? Solved! - read more.

20 Jul 2018 - 1 Comments

How does DNS work? For dummies!

I get a lot of people asking how DNS works, my response is always that your computer asks a server what IP address a domain points to and then goes and makes it's request to that address. But how does DNS really work and why does it work the way it does? That question is a little more involved but i've tried to answer in the simplest way possible without dumbing it down too much. - read more.

11 Jul 2018

Displaying text on a 16x2 LCD screen with a Raspberry Pi

It's taken a while, but I've finally put a little 16x2 LCD screen on my biped robot to display messages such as warnings, system temperature and error logs. It uses Pi4J and And before you say... Yes, I'm still working on it years later. - read more.

5 Jun 2018

Restrict Umbraco Back Office by IP

In this blog post, I'll describe how to protect the back office/backend of the Umbraco CMS interface by restricting it to a set of specified IP addresses. - read more.

22 May 2018

Moving SQL Server System Tables

Moving SQL Server System Tables sounds like it's going to be a complicated and fairly long-winded task, but with a few SQL queries, you're good to go. - read more.

22 Feb 2018

Using SQL DataTables to speed up database performance

If like me, you've found yourself with a project that requires operations on hundreds of records simultaneously from a web project, you might have found yourself running a SQL insert/update/delete command for every one, but with the use of a C# DataTable, you'll be able to perform an action on all items with one command. - read more.

27 Feb 2018