I am trying to create a Windows Store app for Desktop/tablet and Phone with a Universal App in Visual Studio 2013 Express. I am having some difficulty understanding what is happening in WPF, as my prior Windows 8 development experience has been with HTML/JS apps.
I ask VS to create a New Project->Visual C#->Store Apps->Universal Apps->Blank App. I open MainPage.xaml.cs and put a breakpoint on the first line in the constructor function, which happens to be this.InitializeComponent(). I hit F5, the app compiles and I am switched to the familiar full-screen Modern app view, but none of my breakpoints are ever hit.
I add a TextBlock to MainPage.xaml just so that there's something in there, but still no breakpoints are hit. What am I missing? Below is (some) the code the is generated by Visual Studio. I am probably missing something very fundamental about how WPF apps work and are structured, but all my google-fu has come to naught.
MainPage.xaml:
<Page
x:Class="SoloCoach.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:SoloCoach"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid>
</Grid>
</Page>
MainPage.xaml.cs:
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238
namespace SoloCoach
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = NavigationCacheMode.Required;
}
/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
// TODO: Prepare page for display here.
// TODO: If your application contains multiple pages, ensure that you are
// handling the hardware Back button by registering for the
// Windows.Phone.UI.Input.HardwareButtons.BackPressed event.
// If you are using the NavigationHelper provided by some templates,
// this event is handled for you.
}
}
}
When you create a Universal App it creates both a Windows 8.1 and a Windows Phone 8.1 app. The code you're showing is the default page constructor for the Phone version so you're probably in the wrong project which is not the Windows Modern App that you're running.
Related
I am building an app with .NET MAUI and Blazor, that initially targets iOS, but should also support Android, in a next release.
I have, in my Info.plist file added an entry myapp in the CFBundleURLSchemes array. And I use this as a redirect uri from our web portal (open in app, with the href myapp://settings/profile).
What happens, is that iOS comes and asks confirmation if that link can be opened with my app. (see screenshot).
But it just opens the app to the page that was previously open. It does not navigate to the Blazor page that is registered with the #page "/settings/profile" directive.
Is this something that is not supported? Or do I have to add something around the routing, here?
Current logic
With the following code in AppDelegate (for iOS), I can intercept that call and access the requested Url from that scheme-link.
public override bool OpenUrl(UIApplication application, NSUrl url, NSDictionary options)
{
AuthenticationContinuationHelper.SetAuthenticationContinuationEventArgs(url);
if (url?.Scheme?.Equals(myScheme, StringComparison.InvariantCultureIgnoreCase) ?? false)
{
var pageUrl = url.ToString().Replace($"{myScheme}://", "");
PageSettings.RequestedUri = pageUrl; // This is the static class/var I want to leverage in BlazorWebView
return base.OpenUrl(application, new NSUrl( pageUrl), options);
}
return base.OpenUrl(application, url, options);
}
However, I don't seem to find out how I can enforce the BlazorWebView to navigate to the right uri.
As I know, there is no way to do this currently with MAUI Blazor.
Refer to the documentation maui-blazor documentation, the .NET MAUI Blazor hybrid project template isn't a Shell-based app.
If you want to route to #page "/settings/profile", you could describe some information about where to go in AppDelegate, then set some staic and launch a simple page (MAUI PAGE), get the value and show the Blazor page.
public override bool OpenUrl (UIApplication app, NSUrl url, string sourceApp, NSObject annotation){
if (url.BaseUrl.Host.Equals ("app.myapp.io")) {
UIViewController page = new TargetPage().CreateViewController();
}
return true;
}
Set the homepage to your needs
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:BlazorDemo"
x:Class="BlazorDemo.TargetPage"
BackgroundColor="{DynamicResource PageBackgroundColor}">
<BlazorWebView x:Name="blazorWebView" HostPage="wwwroot/profile.html">
<BlazorWebView.RootComponents>
<RootComponent Selector="#app" ComponentType="{x:Type local:Main}" />
</BlazorWebView.RootComponents>
</BlazorWebView>
</ContentPage>
I've managed to link my native application to a website and launch the same on a button click. As the website is trusted, the URL bar is not visible. In the launched website there is a button which then further redirects to another website. I've created a digital asset link for both and have added the JSON file in <websitename>/.well-known/<json-file>.
Both the websites have also been referenced in strings.xml under
asset_statements. However, on launching the first website and then redirecting to the second website from the first, the second website launches as a regular custom chrome tab with the URL bar visible.
Is it possible to hide both the URL's? If so, how?
To enable multi-domain, you need to check 3 things
Each origin has a .well-known/assetlinks.json file
The android asset_statements contains all origins
Tell the Trusted Web Activity about additional origins when launching.
It seems you have the first two points covered, but not the last one.
Using the support library LauncherActivity:
If using the LauncherActivity that comes with the library, you can provide additional origins by updating the AndroidManifest:
Add a list of additional origins to res/values/strings.xml:
<string-array name="additional_trusted_origins">
<item>https://www.google.com</item>
</string-array>
Update AndroidManifest.xml:
<activity android:name="com.google.androidbrowserhelper.trusted.LauncherActivity"
android:label="#string/app_name">
<meta-data
android:name="android.support.customtabs.trusted.ADDITIONAL_TRUSTED_ORIGINS"
android:resource="#array/additional_trusted_origins" />
...
</activity>
Using a custom LauncherActivity
If using your own LauncherActivity, launching with additional origins can implemented like this:
public void launcherWithMultipleOrigins(View view) {
List<String> origins = Arrays.asList(
"https://checkout.example.com/"
);
TrustedWebActivityIntentBuilder builder = new TrustedWebActivityIntentBuilder(LAUNCH_URI)
.setAdditionalTrustedOrigins(origins);
new TwaLauncher(this).launch(builder, null, null);
}
Resources:
Article with more details here: https://developers.google.com/web/android/trusted-web-activity/multi-origin
Sample multi-origin implementation: https://github.com/GoogleChrome/android-browser-helper/tree/master/demos/twa-multi-domain
I am attempting to implement NLog logging using ASP.Net 5 and MVC 6. Be default, both DNX 451 and DNX Core 50 are included in the project template.
I am attempting to implement NLog Logging by following the example here.
However, in the sample app, there is the following line -
#if !DNXCORE50
factory.AddNLog(new global::NLog.LogFactory());
#endif
And if I run the app, this line never gets hit because the mvc application has dnx core 50 installed by default.
Is there any loggers that are available for DNX Core 50? If not, what purpose does dnx core serve in the default mvc app - is it actually needed?
Edit: If I remove the #if !DNXCORE50.... line above, I get a the following error -
DNX Core 5.0 error - The type or namespace name 'NLog' could not be found in the global namespace'
DNX Core 5.0 is only necessary if you want the cloud-optimized cross-platform version of the .Net framework; if you still plan on using the MVC app within only a Windows environment, you can remove your dnxcore50 framework reference from your project.json.
NLog for .NET Core (DNX environment) is currently available in version 4.4.0-alpha1.
Steps:
Create NLog.config
<?xml version="1.0" encoding="utf-8" ?>
<targets>
<target xsi:type="ColoredConsole" name="ToConsole" />
</targets>
<rules>
<logger name="*" minlevel="Info" writeTo="ToConsole" />
</rules>
Load and parse configuration
private static ILogger _logger;
public static void LoggerSetup()
{
var reader = XmlReader.Create("NLog.config");
var config = new XmlLoggingConfiguration(reader, null); //filename is not required.
LogManager.Configuration = config;
_logger = LogManager.GetCurrentClassLogger();
}
public static void Main(string[] args)
{
LoggerSetup();
// Log anything you want
}
When dealing with the MVC tooling in MVC6 (dnx stuff), the answer to this is very fluid.
In order to get NLog to work with my web app, I had to do a couple steps:
-> Big thanks to two NLog discussions(here and here)
I just needed to add the configuration setup in my Startup.cs's constructor:
public Startup(IHostingEnvironment env)
{
// Set up configuration sources.
var builder = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.AddEnvironmentVariables();
// Set up logging configuration
// from: https://github.com/NLog/NLog/issues/641
// and: https://github.com/NLog/NLog/issues/1172
var reader = XmlTextReader.Create(File.OpenRead(Path.Combine(builder.GetBasePath(),"NLog.config"))); //stream preferred above byte[] / string.
LogManager.Configuration = new XmlLoggingConfiguration(reader, null); //filename is not required.
log.Info("NLogger starting");
Configuration = builder.Build();
}
I consider this a bit of a stop-gap as Microsoft is introducing a new Logging interface (that I hope will end up being like SLF4J.org is in Java). Unfortunately, documentation on that is a bit thin at the time I'm writing this. NLog is working diligently on getting themselves an implementation of the new dnx ILoggingProvider interface.
Additional information about my project setup
My NLog.config file is located in the project root folder, next to
the project.json and appsettings.json. I had to do a little digging
inside AddJsonFile() to see how they handled pathing.
I used yeoman.io and their aspnet generator to set up the web project.
Version of NLog, thanks to Lukasz Pyrzyk above:
"NLog": "4.4.0-alpha1"
I have moderate experience in developing web applications using spring.net 4.0 , nhibernate 3.0 for ASP.net based web applications. Recently I ran into a situation where I needed to use spring.net to inject my service dependencies which belong to the WorkerRole class. I created the app.config file as I normally did with the web.config files on for spring. Here it is for clarity. (I have excluded the root nodes)
<configSections>
<sectionGroup name="spring">
<section name="context" type="Spring.Context.Support.WebContextHandler, Spring.Web" requirePermission="false" />
<section name="objects" type="Spring.Context.Support.DefaultSectionHandler, Spring.Core" requirePermission="false" />
<section name="parsers" type="Spring.Context.Support.NamespaceParsersSectionHandler, Spring.Core" />
</sectionGroup>
</configSections>
<spring>
<context>
<!-- Application services and data access that has been previously developed and tested-->
<resource uri="assembly://DataAccess/data-access-config.xml" />
<resource uri="assembly://Services/service-config.xml" />
<resource uri="AOP.xml" />
<resource uri="DI.xml"/>
</context>
<parsers>
<parser type="Spring.Data.Config.DatabaseNamespaceParser, Spring.Data" />
<parser type="Spring.Transaction.Config.TxNamespaceParser, Spring.Data" />
<parser type="Spring.Aop.Config.AopNamespaceParser, Spring.Aop" />
</parsers>
</spring>
Similarly Here's the AOP.xml
<object id="FilterServiceProxy" type="Spring.Aop.Framework.ProxyFactoryObject, Spring.Aop">
<property name="proxyInterfaces" value="Domain.IFilterService"/>
<property name="target" ref="FilterService"/>
<property name="interceptorNames">
<list>
<value>UnhandledExceptionThrowsAdvice</value>
<value>PerformanceLoggingAroundAdvice</value>
</list>
</property>
</object>
</objects>
and the DI.xml
<object type="FilterMt.WorkerRole, FilterMt" >
<property name="FilterMtService1" ref="FilterServiceProxy"/>
</object>
However, I was unable to inject any dependencies into the worker role. Can someone please let me know what I am doing wrong here ? Is there a different way to configure Spring.net DI for windows azure applications ?
I don't get any configuration errors but I see that the dependencies have not been injected because the property object to which I've tried injection, remains null.
Based on my experience, you cannot inject anything into your WorkerRole class (the class that implements RoleEntryPoint). What I do, so far with Unity (I also built my own helper for Unity to help me inject Azure settings), is that I have my own infrastructure that runs and is built by Unity, but I create it in the code for the worker role.
For example, I initialize the dependency container in my OnStart() method of RoleEntry point, where I resolve anything I need. Then in my Run() method I call a method on my resolved dependency.
Here is a quick, stripped off version of my RoleEntryPoint's implementation:
public class WorkerRole : RoleEntryPoint
{
private UnityServiceHost _serviceHost;
private UnityContainer _container;
public override void Run()
{
// This is a sample worker implementation. Replace with your logic.
Trace.WriteLine("FIB.Worker entry point called", "Information");
using (this._container = new UnityContainer())
{
this._container.LoadConfiguration();
IWorker someWorker = this._container.Resolve<IWorker>();
someWorker.Start();
IWorker otherWorker = this._container.Resolve<IWorker>("otherWorker");
otherWorker.Start();
while (true)
{
// sleep 30 minutes. we don't really need to do anything here.
Thread.Sleep(1800000);
Trace.WriteLine("Working", "Information");
}
}
}
public override bool OnStart()
{
// Set the maximum number of concurrent connections
ServicePointManager.DefaultConnectionLimit = 12;
// For information on handling configuration changes
// see the MSDN topic at http://go.microsoft.com/fwlink/?LinkId=166357.
this.CreateServiceHost();
return base.OnStart();
}
public override void OnStop()
{
this._serviceHost.Close(TimeSpan.FromSeconds(30));
base.OnStop();
}
private void CreateServiceHost()
{
this._serviceHost = new UnityServiceHost(typeof(MyService));
var binding = new NetTcpBinding(SecurityMode.None);
RoleInstanceEndpoint externalEndPoint =
RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["ServiceEndpoint"];
string endpoint = String.Format(
"net.tcp://{0}/MyService", externalEndPoint.IPEndpoint);
this._serviceHost.AddServiceEndpoint(typeof(IMyService), binding, endpoint);
this._serviceHost.Open();
}
As you can see, my own logic is IWorker interface and I can have as many implementations as I want, and I instiate them in my Run() method. What I do more is to have a WCF Service, again entirely configured via DI with Unity. Here is my IWorker interface:
public interface IWorker : IDisposable
{
void Start();
void Stop();
void DoWork();
}
And that's it. I don't have any "hard" dependencies in my WorkerRole, just the Unity Container. And I have very complex DIs in my two workers, everything works pretty well.
The reason why you can't interfere directly with your WorkerRole.cs class, is that it is being instantiated by the Windows Azure infrastructure, and not by your own infrastructure. You have to accept that, and built your infrastructure within the WorkerRole appropriate methods. And do not forget that you must never quit/break/return/exit the Run() method. Doing so will flag Windows Azure infrastructure that there is something wrong with your code and will trigger role recycling.
Hope this helps.
I know this is an old question, but I'm going through the same learning curve and would like to share my findings for someone who struggles to understand the mechanics.
The reason you can't access DI in your worker role class is because this is run in a separate process in the OS, outside of IIS. Think of your WebRole class as being run in a Windows Service.
I've made a little experiment with my MVC web-site and WebRole class:
public class WebRole : RoleEntryPoint
{
public override void Run()
{
while (true)
{
Thread.Sleep(10000);
WriteToLogFile("Web Role Run: run, Forest, RUN!");
}
}
private static void WriteToLogFile(string text)
{
var file = new System.IO.StreamWriter("D:\\tmp\\webRole.txt", true); // might want to change the filename
var message = string.Format("{0} | {1}", DateTime.UtcNow, text);
file.WriteLine(message);
file.Close();
}
}
This would write to a file a new string every 10 seconds (or so). Now start your Azure site in debugging mode, make sure the site deployed to Azure emulator and the debugger in VS has started. Check that the site is running and check that WebRole is writing to the file in question.
Now stop the IIS Express (or IIS if you are running it in full blown installation) without stopping the VS debugger. All operations in your web-site are stopped now. But if you check your temp file, the process is still running and you still get new lines added every 10 seconds. Until you stop the debugger.
So whatever you have loaded in memory of web-application is inside of the IIS and not available inside of Worker Role. And you need to re-configure your DI and other services from the scratch.
Hope this helps someone to better understand the basics.
I am looking to create a page with a single form on it that does the following:
Contact a webservice with input from the form.
Perform an action (programmed using C#) depending on the result of the webservice call.
Since I am not interacting with any lists or similar on the SharePoint site, I was thinking a WebPart would be the simplest way to add the form and catch the submit-event, but I am not sure if this is the best practice or an easier/better way exists.
I also need to restrict access to the form to a specific usergroup.
Thanks in advance!
A new SharePoint Web Part is probably the most common way to provide this solution in SharePoint and fits your requirements well. Though your solution doesn't call for it, you do have access to the lists from custom web part code.
If you are using SharePoint 2007, Visual Studio Extensions provide the Microsoft supported way to create one easily. It's much easier with Visual Studio 2010 and SharePoint 2010.
Some other options would be an InfoPath Form with custom code or a custom application page with code behind. The benefit of the web part is that it works with all versions of SharePoint and can be added to any web part page on the site and customized by users. Also, the application page may not pick up the master page if you are on SharePoint 2007.
Use WebDAV to upload an ASPX page to a site in SharePoint. Then upload your assembly to each SharePoint server, the bin folder of your application is preferred, or add it to the GAC.
Your ASPX page might look like this:
<%# Page Language="C#" masterpagefile="~masterurl/custom.master" inherits="MyAssembly, MyClass, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c48b11b32c9eb4a7" %>
<asp:Content runat="server" ContentPlaceholderID="PlaceHolderPageTitle">My Title</asp:Content>
<asp:Content runat="server" ContentPlaceholderID="PlaceHolderPageTitleInTitleArea">My Page</asp:Content>
<asp:Content runat="server" ContentPlaceholderID="PlaceHolderMain">
<asp:Button runat="server" ID="ButtonClickMe" Text="Click Me!" />
</asp:Content>
Then your assembly might look something like this:
public class MyClass : Microsoft.SharePoint.WebPartPages.WebPartPage
{
protected global::System.Web.UI.WebControls.Button ButtonClickMe;
protected override void OnLoad(EventArgs e)
{
base.OnLoad( e );
ButtonClickMe.Click += new EventHandler( ButtonClickMe_Click );
}
void ButtonClickMe_Click(object sender, EventArgs e)
{
if (!Page.IsValid)
return;
// Do stuff here
}
}
You won't be able to edit the permissions of the ASPX page directly, but you can manipulate the permissions of the site it is in (thus, restrict the site to only the usergroup which you want to access the form).