Xaml Parse Exception Класс

Определение

Исключение, создаваемое в случае возникновения ошибки при анализе XAML. The exception that is thrown when an error occurs while parsing XAML.

Конструкторы

Инициализирует новый экземпляр класса XamlParseException со значениями по умолчанию. Initializes a new instance of the XamlParseException class with default values.

Инициализирует новый экземпляр класса XamlParseException с указанным сообщением об ошибке. Initializes a new instance of the XamlParseException class with a specified error message.

Инициализирует новый экземпляр класса XamlParseException указанным сообщением об ошибке и ссылкой на внутреннее исключение, вызвавшее данное исключение. Initializes a new instance of the XamlParseException class with a specified error message and a reference to the inner exception that is the cause of this exception.

Свойства

Возвращает коллекцию пар «ключ-значение», предоставляющую дополнительные сведения об исключении. Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Унаследовано от Exception) HelpLink

Получает или задает ссылку на файл справки, связанный с этим исключением. Gets or sets a link to the help file associated with this exception.

(Унаследовано от Exception) HResult

Возвращает или задает HRESULT — кодированное числовое значение, присвоенное определенному исключению. Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Унаследовано от Exception) InnerException

Возвращает экземпляр класса Exception, который вызвал текущее исключение. Gets the Exception instance that caused the current exception.

(Унаследовано от Exception) Message

Возвращает сообщение, описывающее текущее исключение. Gets a message that describes the current exception.

(Унаследовано от Exception) Source

Возвращает или задает имя приложения или объекта, вызывавшего ошибку. Gets or sets the name of the application or the object that causes the error.

(Унаследовано от Exception) StackTrace

Получает строковое представление непосредственных кадров в стеке вызова. Gets a string representation of the immediate frames on the call stack.

(Унаследовано от Exception) TargetSite

Возвращает метод, создавший текущее исключение. Gets the method that throws the current exception.

(Унаследовано от Exception)

Методы

Определяет, равен ли указанный объект текущему объекту. Determines whether the specified object is equal to the current object.

(Унаследовано от Object) GetBaseException()

При переопределении в производном классе возвращает исключение Exception, которое является первопричиной одного или нескольких последующих исключений. When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Унаследовано от Exception) GetHashCode()

Служит хэш-функцией по умолчанию. Serves as the default hash function.

(Унаследовано от Object) GetObjectData(SerializationInfo, StreamingContext)

При переопределении в производном классе задает объект SerializationInfo со сведениями об исключении. When overridden in a derived class, sets the SerializationInfo with information about the exception.

(Унаследовано от Exception) GetType()

Возвращает тип среды выполнения текущего экземпляра. Gets the runtime type of the current instance.

(Унаследовано от Exception) MemberwiseClone()

Создает неполную копию текущего объекта Object. Creates a shallow copy of the current Object.

(Унаследовано от Object) ToString()

Создает и возвращает строковое представление текущего исключения. Creates and returns a string representation of the current exception.

(Унаследовано от Exception)

События

Возникает, когда исключение сериализовано для создания объекта состояния исключения, содержащего сериализованные данные об исключении. Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

Xaml Parse Exception Class

Definition

Represents the exception class for parser-specific exceptions from a WPF XAML parser. This exception is used in XAML API or WPF XAML parser operations from .NET Framework 3.0 and .NET Framework 3.5, or for specific use of the WPF XAML parser by calling XamlReader API.

Remarks

XamlParseException is used only for the WPF-implemented XAML parser that performs the XAML parsing and loading for WPF applications. Specifically, the exception is only relevant when an application targets .NET Framework 3.0 and .NET Framework 3.5. The exception can also originate from user code in run-time calls to APIs that hook up the WPF-implemented XAML parser to load XAML from within a running WPF application (for example, calls to XamlReader.Load).

For .NET Framework 4, the XamlParseException exception that typically reports XAML processing exceptions is defined in a different namespace (System.Xaml) and a different assembly (System.Xaml).

Unless you are writing an equivalent to the WPF XAML parser or working with .NET Framework 3.0 and .NET Framework 3.5 targeting, you generally will not throw XamlParseException from your own code. However, handling for the exception is sometimes necessary. For application scenarios, where you may want to suppress XAML parse errors, a Dispatcher UnhandledException event handler at the application level is one way to handle a run-time XamlParseException. Whether to suppress exceptions or let them surface to user code depends on how you design your application for purposes of loading XAML, and the trust level that you assign to the XAML your application loads. For more information, see XAML Security Considerations or «XAML Security» section of XAML Overview (WPF).

For pages of an application, when the XamlParseException is thrown, it is usually in the context of the InitializeComponent call made by your page class, which is the entry point for the WPF application model’s usage of the WPF XAML parser at the per-page level. Therefore another possible handling strategy is to place try/catch blocks in InitializeComponent . However, this technique does not integrate well with templates, visual design surfaces and other generated sources that hook up InitializeComponent .

Constructors

Initializes a new instance of the XamlParseException class.

Initializes a new instance of the XamlParseException class.

Initializes a new instance of the XamlParseException class, using the specified exception message string.

Initializes a new instance of the XamlParseException class, using the specified exception message string and inner exception.

Initializes a new instance of the XamlParseException class, using the specified exception message string, and the specified line number and position in the line.

Initializes a new instance of the XamlParseException class, using the specified exception message, inner exception, line number, and position in the line.

Properties

Gets base URI information when the exception is thrown.

Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception) HelpLink

Gets or sets a link to the help file associated with this exception.

(Inherited from Exception) HResult

Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception) InnerException

Gets the Exception instance that caused the current exception.

(Inherited from Exception) KeyContext

Gets or sets the key value of the item in a dictionary where the exception occurred.

Gets the line number where the exception occurred.

Gets the position in the line where the exception occurred.

Gets a message that describes the current exception.

(Inherited from Exception)

NameContext

Gets or sets the XAML name of the object where the exception occurred.

Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception) StackTrace

Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception) TargetSite

Gets the method that throws the current exception.

(Inherited from Exception) UidContext

Gets or sets the x:Uid Directive of the object where the exception occurred.

Methods

Determines whether the specified object is equal to the current object.

(Inherited from Object) GetBaseException()

When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Inherited from Exception) GetHashCode()

Serves as the default hash function.

(Inherited from Object) GetObjectData(SerializationInfo, StreamingContext)

Gets the data that is required to serialize the specified object by populating the specified SerializationInfo object.

Gets the runtime type of the current instance.

(Inherited from Exception) MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object) ToString()

Creates and returns a string representation of the current exception.

(Inherited from Exception)

Events

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

System.Windows.Markup.XamlParseException: ‘CefSharp.Wpf.ChromiumWebBrowser’ threw exception. Inner Exception: could not load CefSharp.Core.dll

Working on C# XAML Windows Application with CefSharp and its ChromiumWebBrowser for a document viewer. The project builds fine without error but whenever I try to open/view an image on the application using Chromium, an error pops up that:

System.Windows.Markup.XamlParseException: The invocation of constructor on type CefSharp.Wpf.ChromiumWebBrowser that matches the specified binding constraints threw an exception

Inner Exception: FileNotFoundException: Could not load file or assembly ‘CefSharp.Core.dll’ or one of its dependencies

CefSharp.Common package is installed in the project, so is the CefSharp.Wpf package and I have also added the references to the project.

Here is my ChromeControl.xaml:

Here is my ChromeControl.xaml.cs in the Viewer.Chrome namespace:

and I have found out that in the stack trace that it begins from in my Document Viewer.xaml.cs:

Have searched around a lot of ways to fix this but none seem to work in my case, any help would be greatly appreciated.

2 Answers 2

So after struggling with this for so long, I have finally fixed it. Quite a silly mistake, I was missing a few files at the installation path needed that are also specified at the link:
Output files description table (Redistribution)

I had asked another question on SO regarding a WiX installer and basically after having all the files in the installation path, I was able to debug this and get it to work.

Update

If your project is Targeting the .NET Framework 4.5, then you have to change the .NET framework of the project to 4.6

Add a file with the name Nuget.Config to the Solution (not to any project)

Add the following content to this file

Original Answer

I faced this exception before, I think you need to call the Initialize method, as I remember.

See this FAQ it would be helpful.

I will summarize it here

1. Why do I get an error about «Could not load file or assembly ‘CefSharp.Core.dll’ or one of its dependencies? The specified module could not be found.» when trying to run my CefSharp-based application? It compiles successfully, but does not run? It runs on my developer machine, though throws an exception when I copy it to another computer?

This is a common error, typically one of the following

VC++ 2012/2013 Redistributable Package is required in order to run CefSharp on non developer machines. See FAQ #6 below for more information. You can include the required dlls as part of your application. Not all dependencies are present in the executing folder. CefSharp includes unmanaged dll’s and resources, these are copied to the executing folder via two .props file which are included in your project when you install the NuGet packages. See list of required files below, make sure the required files are present. You packaged your application for distribution via an installer and it doesn’t run on the target machine. Installers don’t include the unmanaged resources by default, you’ll need to add them manually. For ClickOnce, see #1314 for some pointers and solutions other users have come up with. A list of required files can be found here: Output files description (Redistribution)

NOTE: This also applies if you get a FileNotFoundException when initializing the WPF control in XAML.

NOTE 2: If compiling from source (not recommended, use the NuGet packages) and you notice that you can no longer build in debug mode, but release builds work just fine you may need to repair your version of Visual Studio. This happens in rare cases where you will get the same exact message as a missing unmanaged .dll file as shown above.

System.Windows.Markup.XamlParseException

I have written a WPF application, on my compuyter it is running ok. Now I am trying to deploy wpf application on W7 computer. And getting following exception:

Any idea what is wrong here ?

6 Answers 6

This type of exception is common when some part of your main window constructor or load operations fail. If you can get your hands on the stack trace, look to the inner exception and you will probably find the real issue.

I had this problem because I was showing a form from in Application constructor. This form was using Style=»«. This static resource was defined in the application’s XAML file.

I solved the problem by showing the form at a later stage in the application, when the Application object was fully constructed.

I had the same exception report. I could solve it by using the windbg program.

• download the windbg x86 (not x64) version.
• open the .exe file of the app in it (File menu -> open exe.)
• run these commands to see the real exception:

After the analysis, I found that the System.Net.Http.Formatting assembly was missing from the system.

the only thing I can think of is whether both boxes have same .NET version on it. NET 4 has some new features (re XAML parser) that 3.5 SP1 doesnt have

I noticed a similar behavior when installing a ClickOnce app on a clean machine. I solved by setting the requirements of the app for install both .Net 4 and .Net 3.5 full.

It was not happened anymore.

Make sure you are build in the correct architecture x86 or x64 when you run on the target machine. I face the same problem as well, the app able to run on my thumbdrive FAT32 however it failed on another machine with Windows 7 — 32bit (I know Windows 7 with 32bit is quite odd though) see http://social.msdn.microsoft.com/Forums/vstudio/en-US/8f803f28-dfda-4be5-9e8d-f7d82db95961/c-wpf-systemwindowsmarkupxamlparseexception?forum=wpf

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