Skip to main content

Windows 8: Error on video playing

Pentru aplicatiile Metro in Windows 8, adaugarea de video la un view se face destul de simplu, utilizand componente precum MediaPlayer .
<MediaPlayer x:Name="VideoMediaPlayer" AutoPlay="False" Loaded="VideoMediaPlayer_Loaded"/>
...
private void VideoMediaPlayer_Loaded(object sender, RoutedEventArgs e)
{
MediaPlayer player = (MediaPlayer)sender;
IRandomAccessStream videoStream = GetVideoStream();
player.SetSource(videoStream, "video/mp4");
}
Binding-ul la source se poate face in diferite moduri. Nu are importanta cum il faceti. In schimb pe versiunea curenta de Windows 8 ( Consumer Preview) aplicatia voastra o sa crape uneori cand userul face play/stop sau schimba pagina curenta.
Eroarea care se arunca are forme asemanatoare cu aceasta:
Windows.UI.Xaml.UnhandledExceptionEventArgs
Exception from HRESULT: 0xC00D3E85
Call to UIASendMessageTimeout failed
Nu incercati sa faceti FIX la aceasta problema in codul vostru. Problema este un bug pe care Windows 8 CP il are si care o sa fie fix-uit in urmatoarea versiune.
Tot din aceasta cauza uneori poate as apara e eroare de genul:
Error loading from server.
in bare unde se face play/pauze la un video.
Speram ca in urmatorul release aceste probleme se rezolva.

Comments

Popular posts from this blog

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 http://go.microsoft.com/fwlink/?LinkId=260882 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 …

Entity Framework (EF) TransactionScope vs Database.BeginTransaction

In today blog post we will talk a little about a new feature that is available on EF6+ related to Transactions.
Until now, when we had to use transaction we used ‘TransactionScope’. It works great and I would say that is something that is now in our blood.
using (var scope = new TransactionScope(TransactionScopeOption.Required)) { using (SqlConnection conn = new SqlConnection("...")) { conn.Open(); SqlCommand sqlCommand = new SqlCommand(); sqlCommand.Connection = conn; sqlCommand.CommandText = ... sqlCommand.ExecuteNonQuery(); ... } scope.Complete(); } Starting with EF6.0 we have a new way to work with transactions. The new approach is based on Database.BeginTransaction(), Database.Rollback(), Database.Commit(). Yes, no more TransactionScope.
In the followi…

GET call of REST API that contains '/'-slash character in the value of a parameter

Let’s assume that we have the following scenario: I have a public HTTP endpoint and I need to post some content using GET command. One of the parameters contains special characters like “\” and “/”. If the endpoint is an ApiController than you may have problems if you encode the parameter using the http encoder.
using (var httpClient = new HttpClient()) { httpClient.BaseAddress = baseUrl; Task<HttpResponseMessage> response = httpClient.GetAsync(string.Format("api/foo/{0}", "qwert/qwerqwer"))); response.Wait(); response.Result.EnsureSuccessStatusCode(); } One possible solution would be to encode the query parameter using UrlTokenEncode method of HttpServerUtility class and GetBytes method ofUTF8. In this way you would get the array of bytes of the parameter and encode them as a url token.
The following code show to you how you could write the encode and decode methods.
publ…