Edi Wang

Microsoft MVP for Azure

All Posts

How to save image to file in Windows 10 UWP

My UWP application "Shanghai Metro" has an option to allow user save the metro graph to local file system. The image file is located under project directory, "Assets\shanghaimetro-xl.jpg", and will ask the user to choose a location when saving the image. This is a very common functionality, it's also easy to achieve in UWP applications. The most easy way to do it is to use my library "Edi.UWP. …
Windows UWP

Windows 10 UWP开发:如何定时触发后台任务

今天在爆UWP的定时后台任务,坑有点多。有的坑在很多网上的文章里都没提到,非常的坑。刚刚开荒成功了,把经验写出来分享: 1. 写一个后台任务的类,继承IBackgroundTask接口 通常,在设计应用程序结构的时候,我们会建类库项目(Class Library)放这些类。比如 FarkBackgroundTask.Core 因为是UWP工程,所以建的类库也要是Universal Windows的。注意,这里我们已经埋下了一个巨坑,稍后会解释。 我们的类代码如下: public class SayFarkTask : IBackgroundTask { public void Run(IBackgroundTaskInstance taskInstance) { Debug.Write("================ Fark the
Windows Timer UWP Task

Windows 10 UWP开发:如何弹出消息通知

在UWP的App中,弹出消息通知的方法和WinRT一致,注意是App内的消息通知(toast notification)而不是从服务器端推送的通知。主要有几个步骤: 1. 创建XML定义 // 1. create element ToastTemplateType toastTemplate = ToastTemplateType.ToastImageAndText01; XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate); 这里面的消息模板有好几种: // // Summary: // 指定要在消息通知中使用的模版。 [ContractVersion(typeof(UniversalApiContract), 65536)] public enum …
Windows UWP

Windows 10 UWP Development: How to Implement WP8's Pivot Effect

The animation effect of the Pivot widget in UWP is different from the previous Pivot in Windows 8 and Windows Phone 8, when switching PivotItem, the header of the currently selected Item will not run to the first one, but simply highlight the current Tab like a Tab tab. Personally, I like Windows 8's Pivot, which is like this GIF (which is a UWP app I'm working on). If you also like the traditional style of Pivot, you can refer to the following methods.
Windows UWP

How to Redirect Old Domain URL to New Domain in IIS

When you change the domain name for your website, you are definitely going to solve the migration problem. You cannot just stop DNS on your old domain, because this will cause your indexed pages to be deleted by search engines. The correct way is to tell the search engine that you have a new domain name now, which is when the user accesses an old URL, redirect it to the new URL. Take my blog …
IIS URL URL Rewrite

Windows 10 UWP开发:自定义标题栏

UWP和WPF以及以前Windows 8.1的WinRT应用有些不一样的地方。首先就是标题栏,以前Windows 8.1的应用都是全屏的,没有标题栏,Windows 10里面应用可以窗口化运行,所以我们也能够利用标题栏做一些定制。本文针对初学者,可能写的比较啰嗦。 一、首先是最基本的,如何改变标题栏及按钮的颜色 标题栏的对象位于Windows.UI.ViewManagement.ApplicationView类里,有个属性是 public ApplicationViewTitleBar TitleBar { get; } 为了能够访问这个属性,我们需要先取得当前应用窗口的view: var view = ApplicationView.GetForCurrentView(); 拿到view对象后,就能对TitleBar属性操作了,标题栏的活动和非活动状态的前景色和背景色可以这样设置, …
Windows UWP

Fix Visual Studio 2015 Razor Editor Blow Up

Visual Studio 2015 has been RTM for one month. However, it blows up very often, such as Razor editor. When I try to open any .cshtml file, it blows up with this error, then the syntax highlight is gone. I tried to uninstall all add-on, even repair install VS2015 can't get it working. The detailed error message is: System.Reflection.TargetInvocationException: Exception has been thrown by the …
Razor

How to Manage Azure App Service in IIS Manager (inetmgr)

The website we created on Azure seems can be only managed in the web portal or in the Server Explorer of Visual Studio. If we would like to use IIS to manage more powerful scenarios, seems VM is the only way. But that's not true. First, the IIS comes with Windows 8.1 can't connect to Azure by default. We need to install an extension http://www.iis.net/downloads/microsoft/iis-manager After install. …
IIS Azure

Azure Website Showing 404 for .woff Fonts in IE

If you are using Website on Microsoft Azure (Currently renamed to Web Apps), you will find the .woff web font is not working in IE, it returns 404. Based on my experience, this is because IIS is not configured to use the correct MimeType. However, we can not operate the IIS on Azure, there's no RDP into an Azure Web Apps backend machine. How can we do that? In fact, after IIS7, the MineType is …
IIS Azure

如何高逼格读取Web.config中的AppSettings

先插句题外话,下版本的ASP.NET貌似把web.config撸掉了,都变成json了。所以本文讨论的内容可能以后用不到了,但是一些设计思想还是可以用的~ 直接进入正题,在ASP.NET网站里(也包括其他有web.config, app.config)的.NET工程里,读AppSettings的值是个很常见的场景。比如: 在代码里读的时候就会用到: ConfigurationManager.AppSettings["EnableAzureWebTrace"]; 这个[]索引器返回的是string类型。所以下一步我们通常需要类型转换才能在代码里拿来用。比如这个例子里,我们就要转换成bool。其他时候,可能要转换为int等类型。 string enableAzureWebTraceConfig = ConfigurationManager.AppSettings[" …
ASP.NET