I'm having a very weird error using the WebClient class in .NET 4.
The app simply downloads some files off the internet and provides output on a textbox (the GUI is WPF). The method that does this is the following:
void DownloadFiles(object files) {
var fileL = (List<string>) files;
foreach (string url in fileL)
{
byte[] data;
using (var k = new WebClient())
{
data = k.DownloadData(url);
}
//Bunch of irrelevant code goes here...
}
}
(I added the using while trying to divine [yes I'm that desperate/ignorant] a solution, the problem happens even if the webclient is declared and initialized outside the foreach loop)
Now the problem appears only when I'm executing this method on a thread separate from the WPF UI main thread. If it is executed on the UI thread then it works perfectly. When a new thread is created with:
Thread t = new Thread(DownloadFiles);
t.Start(files);
The first time the code goes into the loop it will work, but when its the second pass inside the loop, I will always receive a TargetParameterCountException.
I can't make any sense of this error. Any help is very much appreciated.
edit
Here are the Exception Details:
Exception.Message = "Parameter count mismatch."
Exception.InnerException = null
Exception.Source = " mscorlib"
The StackTrace follows:
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl() at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at FileDownloader.App.Main() in d:\mis documentos\visual studio 2010\Projects\OneMangaDownloader\FileDownloader\obj\x86\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
I know there is a bug in WebClient where it always puts the call on the UI thread. Not sure if this is causing the issues.
For more info read this post.
Related
The application was developed on machines running windows 10, with the system language set to our local language, danish. Now we are at a stage where the software needs to be used in offices in other countries.
However, the view crashes on startup on those machines, and I have found out that if I change the system language on my own machine, it will not work for me either.
Why this is, we can't figure out.
Error message from InitializeComponent:
System.IO.IOException: 'Cannot locate resource 'views/main/mainview.xaml'.'
StackTrace:
at MS.Internal.AppModel.ResourcePart.GetStreamCore(FileMode mode,
FileAccess access) at
System.IO.Packaging.PackagePart.GetStream(FileMode mode, FileAccess
access) at System.IO.Packaging.PackagePart.GetStream() at
System.Windows.Application.LoadComponent(Object component, Uri
resourceLocator) at
InfoCenter.Views.Main.MainView.InitializeComponent() in
D:\Workspace\Visual Studio\MT Info Center WPF\Info
Center\Views\Main\MainView.xaml:line 1 at
InfoCenter.Views.Main.MainView..ctor() in D:\Workspace\Visual
Studio\MT Info Center WPF\Info Center\Views\Main\MainView.xaml.cs:line
21 at InfoCenter.App.OnStartup(StartupEventArgs e) in
D:\Workspace\Visual Studio\MT Info Center WPF\Info
Center\App.xaml.cs:line 57 at
System.Windows.Application.<.ctor>b__1_0(Object unused) at
System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Int32 numArgs) at
System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source,
Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl() at
System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object
state) at
System.Threading.ExecutionContext.RunInternal(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
preserveSyncCtx) at
System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
preserveSyncCtx) at
System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state) at
MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext
executionContext, ContextCallback callback, Object state) at
System.Windows.Threading.DispatcherOperation.Invoke() at
System.Windows.Threading.Dispatcher.ProcessQueue() at
System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32
msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at
MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam,
IntPtr lParam, Boolean& handled) at
MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at
System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Int32 numArgs) at
System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source,
Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at
System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority
priority, TimeSpan timeout, Delegate method, Object args, Int32
numArgs) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd,
Int32 msg, IntPtr wParam, IntPtr lParam) at
MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at
System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame
frame) at
System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore) at
System.Windows.Application.RunInternal(Window window) at
System.Windows.Application.Run(Window window) at
System.Windows.Application.Run() at InfoCenter.App.Main() in
D:\Workspace\Visual Studio\MT Info Center WPF\Info
Center\obj\Debug\App.g.cs:line 51
Here is some of the code:
App.xaml
<!--ANCHOR: Updater-->
<updater:SingleInstanceApplication x:Class="InfoCenter.App"
x:Name="App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:updater="clr-namespace:InfoCenter.Updater">
<Application.Resources>
</Application.Resources>
</updater:SingleInstanceApplication>
App.xaml.cs:
protected override void OnStartup(StartupEventArgs e)
{
if (PreProcessor.Prod)
Dispatcher.UnhandledException += OnDispatcherUnhandledException;
base.OnStartup(e);
AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);
var app = new MainView { ShowInTaskbar = false, Topmost = true }
var context = new MainViewModel();
app.DataContext = context;
app.Show();
}
Other info:
- We deploy using ClickOnce.
- The app have some background tasks that will keep running. It look like it just runs without a view.
- We use MVVM pattern.
If I am missing some information, don't hesitate to ask!
It was a problem regarding the Culture Info, since you have added this line in your resource file
<UICulture>en-US</UICulture>
Following this post you should be able to solve your problem uncommenting this line
[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
in your assembly.info.cs
Debug build works fine, Release build throws a NullReferenceException for the following code:
MetadataObjectCollection<ExplorerAddress> storedExplorerAddressesCollection = null;
bool test = this.storedExplorerAddressesCollectionReference == null;
if ((test) || !this.storedExplorerAddressesCollectionReference.TryGetTarget(out storedExplorerAddressesCollection))
Is there some new broken optimization for release builds or something? This is pretty bad so I can't imagine its a bug with visual studio but I also can't see how anything I did could have made this break.
at BlockExplorer.Services.CollectionsService.get_StoredExplorerAddresses() in C:\Users\Talos\Documents\Visual Studio 2015\Projects\BlockExplorer\BlockExplorer\Services\CollectionsService.cs:line 38
at BlockExplorer.ViewModels.MainPageViewModel..ctor() in C:\Users\Talos\Documents\Visual Studio 2015\Projects\BlockExplorer\BlockExplorer\ViewModels\MainPageViewModel.cs:line 91
at BlockExplorer.Pages.MainPage.ContentFrame_Loaded(Object sender, RoutedEventArgs e) in C:\Users\Talos\Documents\Visual Studio 2015\Projects\BlockExplorer\BlockExplorer\Pages\MainPage.xaml.cs:line 75
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
at MS.Internal.LoadedOrUnloadedOperation.DoWork()
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at BlockExplorer.App.Main() in C:\Users\Talos\Documents\Visual Studio 2015\Projects\BlockExplorer\BlockExplorer\obj\x64\Release\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
I'm trying to create WrapPanel with movie covers. When i load 140 covers everything works fine, but when i load 141 covers then:
System.ArgumentException was unhandled
HResult=-2147024809
Message=Value does not fall within the expected range.
Source=PresentationCore
StackTrace:
at System.Windows.Media.ColorContext.GetColorContextsHelper(GetColorContextsDelegate getColorContexts)
at System.Windows.Media.Imaging.BitmapFrameDecode.get_ColorContexts()
at System.Windows.Media.Imaging.BitmapImage.FinalizeCreation()
at System.Windows.Media.Imaging.BitmapImage.OnDownloadCompleted(Object sender, EventArgs e)
at System.Windows.Media.UniqueEventHelper.InvokeEvents(Object sender, EventArgs args)
at System.Windows.Media.Imaging.LateBoundBitmapDecoder.DownloadCallback(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run()
at pCore.App.Main() in c:\Users\narkoze\Desktop\vanagz\pCore\pCore\obj\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.ArgumentException
HResult=-2147024809
Message=Value does not fall within the expected range.
InnerException:
My Code looks something like that:
<ScrollViewer>
<WrapPanel Name="MyWrapPanel" x:FieldModifier="public" />
</ScrollViewer>
using (var client = new WebClient())
{
var content = client.DownloadString("http://www.");
var movies = JsonConvert.DeserializeObject<List<MovieAttributes>>(content);
foreach (var movie in movies)
{
TextBox tb = new TextBox();
tb.Text = movie.Name;
Image img = new Image();
BitmapImage bi = new BitmapImage();
Uri cover = new Uri(movie.Cover, UriKind.RelativeOrAbsolute);
bi.UriSource = cover;
img.Source = bi;
StackPanel sp = new StackPanel();
sp.Children.Add(tb);
sp.Children.Add(img);
MyWrapPanel.Children.Add(sp);
}
}
I'll be very grateful if anyone will be able to solve this problem :( Thank you very much!
Inner Exceptions ::::::::::::::::::::::::::::::::::::::::::
i.CreateOptions |= BitmapCreateOptions.IgnoreColorProfile;
Thanks to
Rafael Rivera
I am trying to download a json string from a web page. I have been using System.Net.WebClient.
When I run it, it works fine on the first loop through, however when it comes through a second time it throws this error.
An unhandled exception of type 'System.Reflection.TargetParameterCountException' occurred in mscorlib.dll
Additional information: Parameter count mismatch.
I have narrowed down the line of code that is causing this error and I am completely baffled by it as works fine on the first attempt but doesn't on the second.
using (var client = new WebClient())
{
var url = string.Format(#"{0}{1}", _partOne, partTwo);
var result= client.DownloadString(url);
}
It is throwing the error on the following line specifically.
var result= client.DownloadString(url);
Just for more background this is a MVVM WPF application.
Stack Trace:
at System.Reflection.RuntimeMethodInfo.InvokeArgumentsCheck(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.RuntimeMethodInfo.UnsafeInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run()
at MyApp.App.Main() in c:\MyApp\obj\Debug\App.g.cs:line 0
I forgot to mention that the error is thrown on this line then I am able to see that it did infact return the correct data but won't let me continue to the next line.
I am developing a program in WPF, getting a picture from the web and used an image control.
My image list has 50 pictures (from vimeo's thumbnails). Everything looks fine but number 45. The picture has some problem and when I get to the 45th picture, I get this exception:
Value does not fall within the expected range.
exception http://img232.imageshack.us/img232/2748/5688301315b2497090468bc.png
I used try-catch but I can't catch it. Because it occurs in the Bitmap class. Here are the details:
at System.Windows.Media.ColorContext.GetColorContextsHelper(GetColorContextsDelegate getColorContexts)
at System.Windows.Media.Imaging.BitmapFrameDecode.get_ColorContexts()
at System.Windows.Media.Imaging.BitmapImage.FinalizeCreation()
at System.Windows.Media.Imaging.BitmapImage.OnDownloadCompleted(Object sender, EventArgs e)
at System.Windows.Media.UniqueEventHelper.InvokeEvents(Object sender, EventArgs args)
at System.Windows.Media.Imaging.LateBoundBitmapDecoder.DownloadCallback(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at youtube.App.Main() in C:\.........\obj\x86\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
Here is my code:
for (int i = 0; i <50 ; i++)
{
product p = new product();
Common.SelectedOldColor = p.Background;
p.VideoInfo = results[i];
Common.Products.Add(p, false);
p.Visibility = System.Windows.Visibility.Hidden;
p.Drop_Event += new product.DragDropEvent(p_Drop_Event);
main.Children.Add(p);
}
when I set the p.VideoInfo = results[i]; property, it assigns something:
private VideoList videoInfo;
public VideoList VideoInfo
{
get { return videoInfo; }
set
{
videoInfo = value;
label1.Content = videoInfo.Title;
try
{
image1.Source = new BitmapImage(new Uri(videoInfo.ThumbNail));
}
catch (Exception ex)
{
}
}
}
image1.Source = new BitmapImage(new Uri(videoInfo.ThumbNail));
Here is source of the problem. but just for this image:
I tried many times and each images are fine. But this one is different? Maybe it's blur?
How can I fix this problem? Maybe I can use different way to assign source to image1?
I hope that I described well.
Try to ignore the color profile, maybe the metadata is corrupted:
var bi = new BitmapImage();
bi.BeginInit();
bi.CreateOptions = BitmapCreateOptions.IgnoreColorProfile;
bi.UriSource = new Uri("http://hanselman.com/blog/images/JPGwithBadColorProfile.jpg");
bi.EndInit();
foo.Source = bi;
or using XAML:
<Image>
<Image.Source>
<BitmapImage CreateOptions="IgnoreColorProfile" UriSource="{Binding ....}"/>
</Image.Source>
</Image>
Also look here Source.
It reminds me of my own question. If you load the images in a tight loop it will crash after X images. You may need to return the thread to the dispatcher for a second to clean up some used memory.
Sources:
How to use the dispatcher to load multiple images
Silverlight: BitmapImage from stream throws exception (Catastrophic
failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED)))