Skip to main content

URI in Windows 8 Metro Style App

Intr-o aplicatie Windows 8 Metro App putem sa specificam printr-un URI locatia de unde sa incarcam continutul unui fisier. Folosirea path-urilor absolute nu este recomandata, deoarece in mod normal nu avem acces la orite path. De exemplu daca folosim un path de forma: "C:\Foo\content.txt" o sa ne trezim cu o eroare de genul "Access is denied".
Este foarte important de stiut ca o aplicatie de tip Metro App are access doar la un numar limitat de locatii. Nu o sa avem access la orice locatie de pe masina. Singura varianta pentru a accesa locatii la care nu avem acces este ca userul sa specifice locatie prin intermediul unui file picker.
URI are urmatoare forma: [scheme]://[numeDomeniu]/[path]
[scheme] poate sa aibe 3 valori predefinite:
  • ms-appx - care va indica locatia unde este pachetul aplicatiei (locatia de unde ruleaza aplicatia)
  • ms-appdata - care indica locatia unde se salveaza datele pe care le-am downloadat de pe internet
  • ms-resource - locatia care contine fisiere de resurse localizabile
Numele de domeniu poate sa fie ignorat, caz in care se va folosii domeniul curent.
In exemplul de mai jos incarcam logo-ul aplicatiei din directorul 'images'.
IAsyncOperation<StorageFile> storageFileAsyncOp = StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///images/AppLogo.png""));



Post a Comment

Popular posts from this blog

How to check in AngularJS if a service was register or not

There are cases when you need to check in a service or a controller was register in AngularJS.
For example a valid use case is when you have the same implementation running on multiple application. In this case, you may want to intercept the HTTP provider and add a custom step there. This step don’t needs to run on all the application, only in the one where the service exist and register.
A solution for this case would be to have a flag in the configuration that specify this. In the core you would have an IF that would check the value of this flag.
Another solution is to check if a specific service was register in AngularJS or not. If the service was register that you would execute your own logic.
To check if a service was register or not in AngularJS container you need to call the ‘has’ method of ‘inhector’. It will return TRUE if the service was register.
if ($injector.has('httpInterceptorService')) { $httpProvider.interceptors.push('httpInterceptorService&#…

ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded

Today blog post will be started with the following error when running DB tests on the CI machine:
threw exception: System.InvalidOperationException: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See for more information. at System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName) This error happened only on the Continuous Integration machine. On the devs machines, everything has fine. The classic problem – on my machine it’s working. The CI has the following configuration:

TeamCity.NET 4.51EF 6.0.2VS2013
It seems that there …

Run native .NET application in Docker (.NET Framework 4.6.2)

The main scope of this post is to see how we can run a legacy application written in .NET Framework in Docker.

First of all, let’s define what is a legacy application in our context. By a legacy application we understand an application that runs .NET Framework 3.5 or higher in a production environment where we don’t have any more the people or documentation that would help us to understand what is happening behind the scene.
In this scenarios, you might want to migrate the current solution from a standard environment to Docker. There are many advantages for such a migration, like:

Continuous DeploymentTestingIsolationSecurity at container levelVersioning ControlEnvironment Standardization
Until now, we didn’t had the possibility to run a .NET application in Docker. With .NET Core, there was support for .NET Core in Docker, but migration from a full .NET framework to .NET Core can be costly and even impossible. Not only because of lack of features, but also because once you…