好的我有一个WPF程序可以在一台计算机上运行但不能在另一台计算机上运行。在另一个，我得到这个MethodAccessException是未处理的
当问题调用NotifyPropertyChanged（）：
时public abstract class NotifyChanged: INotifyPropertyChanged {
#region INotifyPropertyChanged
/// <summary>
/// PropertyChanged can be triggered whenever a Property changes value.
/// It is also available for classes which inherit from
MachineComponent.
/// </summary>
public virtual event PropertyChangedEventHandler PropertyChanged;
/// <summary>
/// NotifyPropertyChanged can be called explicitly, by sending the name
of the property as a string,
/// or implicitly, by calling it without parameters from the Property
that changes.
/// </summary>
/// <param name="info"></param>
[System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Design",
"CA1026:DefaultParametersShouldNotBeUsed" )]
protected void NotifyPropertyChanged( [CallerMemberName] string info = "none passed" ) {
if ( PropertyChanged != null ) {
PropertyChanged( this, new PropertyChangedEventArgs( info ) );
}
}
#endregion
我被告知此代码来自Microsoft网站
更新..我正在添加完整的错误消息。现在这是运行时错误消息
完整的错误消息：
System.MethodAccessException was unhandled
HResult=-2146233072
Message=Attempt by method
'Moxtek.XRF.Core.LocationViewModel.set_LocationName(System.String)' to
access method
'Moxtek.Common.Abstract.NotifyChanged.NotifyPropertyChanged(System.String)'
failed.
Source=Moxtek.XRF.Core
StackTrace:
at Moxtek.XRF.Core.LocationViewModel.set_LocationName(String value) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationViewModel.cs:line 41
at Moxtek.XRF.Core.LocationViewModel..ctor(XrfLocationSet location, LocationItemViewModel locationItem, MeasurementRecipeItemViewModel recipeItem, IDataObject`1 locationData, IServiceLocator services) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationViewModel.cs:line 12
at Moxtek.XRF.Core.LocationItemViewModel.GetItems() in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationItemViewModel.cs:line 36
at Moxtek.XRF.Core.LocationItemViewModel..ctor(IDataObject`1 locationData, MeasurementRecipeItemViewModel recipeItem, IServiceLocator services) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationItemViewModel.cs:line 14
at Moxtek.XRF.Core.XrfViewModel..ctor(ChartingViewModel chart, IServiceLocator services) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\XrfViewModel.cs:line 29
at Moxtek.XRF.WPF.App.OnStartup(StartupEventArgs e) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.WPF\App.xaml.cs:line 46
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 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 Moxtek.XRF.WPF.App.Main()
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
at System.Activator.CreateInstance(ActivationContext activationContext)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
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()
InnerException: