02
MAR
Microsoft MVP for Azure
Windows
16
FEB
Azure Fire Alarm by Raspberry Pi and Windows 10 IoT Core
防火是日常生活中非常重要的意识，如果你恰好有Windows 10的设备，比如Lumia，Surface，能及时收到火警是至（mei）关（sha）重（luan）要（yong）的。今天就教大家如何用Microsoft Azure公有云+Windows 10 IoT Core在树莓派上实现一个远程火警系统。阅读这篇文章，你需要的前置知识：Windows 10，UWP的基本开发能力，MVVM基础知识，ASP.NET MVC的基础知识，树莓派、GPIO及逻辑电路的基本知识（也就是大学里的计算机电路），Azure公有云的使用经验……当然，还要有对微软的信仰
22
JAN
Get system font and characters in Windows 10 UWP
There used to be a {x:Static Fonts.SystemFontFamilies} in WPF that can bind to system font list very easy. However, this is gong in UWP! How stupid it is! These days I wrote a character map UWP application, that would use system fonts, so I did some research. In order to get system font in UWP, we must use DirectX. Install these 3 NuGet pacakges into your project: "SharpDX": "3.0.1", " …
05
DEC
How to Remove ListView Default Selection in Windows 10 UWP
A lot of people including me has encounter a problem where on UWP apps, if a ListView control is being data binded, it will get a default selected item like this: It not only will display as selected item, it also fires SelectionChanged event. However, if we want to make ListView clickable, a popular way is to write the SelectionChanged event handler like this: private void StationsList_ …
25
NOV
How to make a modal progress dialog in Windows 10 UWP
Windows 10 Mobile上的文件管理器有这样一个进度指示器，它是一个模态框，不带任何按钮，只有进度条和文本： 今天我琢磨了很久，绕了一些弯路，发现其实要做一个这样的模态进度指示器很简单。只要用ContentDialog就行。 平时我们用ContentDialog有些思维定势，就觉得这个对话框一定要提供按钮给用户操作。其实它是可以不设置任何按钮的，这样就有了初步的雏形： XAML C# private async void BtnSitAndRelax_OnClick(object sender, RoutedEventArgs e) { // show progress await ModalProgressDig.ShowAsync(); } …
22
SEP
Windows 10 UWP开发：拼音首字母分组如何去掉“拼音”前缀并支持切换系统语言
Windows 10里面有个脑残设计，就是系统默认的CharacterGroupings类型在中文版系统上会产生除了A-Z字母以外的带“拼音”前缀的另外24个分组。比如开屎菜单里就是这样： 如果我们用这个CharacterGroupings类型去创建带分组的ListView，就会变成这样： 更蛋疼的是，如果用户的系统是英文语言的，他就会发现分组变成空白了，没有任何数据。用户不知道这是微软干的，又得给我们的APP打1星，还要骂我们傻逼。 今天经过研究，终于把这个问题给解决了，不仅去掉了“拼音”前缀，也不用担心用户系统是什么语言的，都能正常显示分组列表。 我们先看看原来的代码。 public class AlphaKeyGroup<T> : List<T> { const string GlobeGroupKey = "?"; …
03
SEP
Sharing Images in Windows 10 UWP
Starting from Windows 8, one big feature for Windows Store Apps is to share data using Charm Bar across Apps. Although the Charm Bar is removed in Windows 10, but the API for sharing is still in the fight. For example, in my "Image Portray" App, I can share ink to OneNote or Outlook. Today, I added same capability for my "Shanghai Metro" App. Here's how to do it. First, to share data across …
21
JUL
315MHz Remote Door Control by Windows 10 IoT
In the past few days, I have implemented a device that mimics the remote control door of a garage with a Raspberry Pi and share it with you. First of all, I will introduce the remote control and receiver board I use, this kind of remote control module can be bought everywhere in China, and it basically looks like this. Many roller shutter doors and garage doors use this remote control module. For radio experiments, the non-locking version is purchased, so note that it is best to purchase the antenna at the same time. The antenna is a 50 ohm single-core wire, in fact, it is a copper wire, pay attention to the frequency when buying, the radio license frequency in Chinese mainland is 315MHz
10
JUN
Reed Controlled Light by Windows 10 IoT Core
Reed switch is an electronic component to connect / disconnect the switch by magnetic field. When it touchs magnetic field, the two iron sheets inside the tube will clip together, so the switch is connected. The application of Reed Swith： Door light controller: When you open the door, turn the light on. When you close the door, turn off the light. This is simply install a reed switch on your …
29
APR