U2U Blog Center

For developers and other creative minds

Welcome at the U2U Blog Center

U2U has built up the last 10 years a huge amount of expertise in the Microsoft .NET Framework. Expertise they have always shared in the community. Below you can find a list of the blogs maintained by U2U trainers.

Using OneDrive files from a Windows 8 Store app

This article explains how to let a Windows Store app manage a list of files in a working folder on the user’s OneDrive, without continuously opening file pickers. Some apps need to store more personal user data than the roaming folder can handle. A folder on the user’s OneDrive is a nice place to st... [More]

A Floating Behavior for Windows 8 Store apps

In my previous article I introduced a Floating Control for Windows Store apps, and hinted that it could be rewritten as a Behavior. Well, that’s exactly what I did. This article describes the Floating Behavior: it allows a ContentControl to be dragged around the screen through mouse or touch, while ... [More]

A Floating Control for Windows 8 Store apps

Windows 8 Store apps need to run on a huge number of screen resolutions. That makes positioning your controls not always an easy task. So why not let the end user decide where a control should be placed? This article describes how to build a XAML and C# ContentControl that can be dragged around (and... [More]

LexDB performance tuning in a Windows 8 Store app

This article explains how to create fast queries against a LexDB database in a Windows 8 Store app, and how to keep these queries fast. LexDB is a lightweight, in-process object database engine. It is written in C# and can be used in .NET, Silverlight, Windows Phone, Windows Store, and Xamarin proje... [More]