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Use ICMP Ping in .NET Core 2.0

In classic .NET Framework applications, we have used System.Net.NetworkInformation.Ping class to Ping a host address. This API is not included by default in .NET Core, even in version 2.0. Here is how to do it in a .NET Core way. First, we need to reference a package System.Net.Ping Install-Package System.Net.Ping This will give us the same API set as .NET Framework. Then, in your .NET Core...

.NET Core Ping ICMP

Use NLog in ASP.NET Core 2.0

There's official update for NLog targeting ASP.NET Core 2.x, for the latest methods please refer to https://github.com/NLog/NLog.Web/wiki/Getting-started-with-ASP.NET-Core-2 Recently I am porting a classic ASP.NET MVC 5 project to .NET Core 2.0, in order to run it on Linux. One of the parts that has differences between .NET Fx and .NET Core is logging. I choose NLog as my logging providor, let's...

.NET Core NLog

Automatically Set Text Color on Accent Background in UWP

Windows 10 allows users to set accent color for the system, and in UWP apps, we usually honor those settings by using XAML pre-defined resource keys like {ThemeResource SystemControlBackgroundAccentBrush}. But regardless of how the user set default app mode to dark or light, when we apply text on accent colors, it may have some problems. For example, when the App is in light mode, the default...

XAML UWP

Get Client IP Address in ASP.NET Core 2.x

In classic ASP.NET we used to get client IP Address by Request.UserHostAddress. But this does not apply to ASP.NET Core 2.0. We need a different way to retrieve HTTP Request information. 1. Define a variable in your MVC controller private IHttpContextAccessor _accessor; 2.  DI into the controller's constructor public SomeController(IHttpContextAccessor accessor) { _accessor = accessor;...

ASP.NET .NET Core

Configure VSTS Build for UWP Apps

UWP Apps usually require a lot of time to compile a "release" package for submitting to Windows Store, and if you are working in a team, TFS/VSTS can help your team ensure that each check-in has a success build, and make it easier for deployment and testing. Let's see a basic example of how to setup a CI build for a UWP App on VSTS. Important Pre-condition: Before you do that, please ensure...

UWP VSTS

Windows 10 UWP: Switching Languages in Your App

By default, a UWP App's UI language is automatically fits the system current language settings. However, what if the user need the ability to set a particular UI language just for your App without having to change system language? In my App, I supports Simplified Chinese and English. The user can override the system language in App's settings page: So how to do it? First, you need to have res...

UWP Localization

Windows 10 UWP: How to Read and Save Settings Easily

In the UWP Application model, reading and saving settings are very similar to WinRT API. The class we are using is ApplicationData.Current.LocalSettings It is using key-value-pair to store settings. LocalSettings will stay on the user's current computer, and not being synced with thier Microsoft account. The API to save settings is: LocalSettings.Values[key] = value; To read settings:  if (Lo...

Windows 10 UWP

Windows 10 UWP: How to Debug OnFileActivated Launch Failure

Today I am working on my Image Portray App, and I get my code blown up. The problem is, when the App is already started, it can open .ink file with double click from a file. But when the App is not launched, opening a .ink file to start the App will make it crash. As other UWP that supports file type association, I also use OnFileActivated event to launch my App. This kind of problem could not be...

Debug Visual Studio UWP

10 Tricks and Tools for Windows 10 UWP Development

After Windows 10's launch. More and more UWP applications are coming as well as more Windows developers. I am doing UWP development besides my job for more then 2 years. Today, I will share some tips and tricks from my UWP development experience as well as some handy tools, so that you can do your development more quicker and easier. 1. Automatically Set Color to Title Bar The default color...

UWP

Windows 10 UWP: Undo / Redo Ink with Surface Dial

The Surface Dial is the first wheel device in a new input device class. I got my hand on one as soon as it came to market in China. I have a UWP App named "Image Portray", as a drawing app that can make use of the Surface Dial. One of it's useful application to undo / redo the ink by turning the Surface Dial. You can download it from Windows Store these days to see the changes. So, let's begin w...

UWP Surface Dial