在WPFWebBrowserApplication中，使用WebBrowser控件，给给Source属性赋值后，会出现如下问题：您正在使用的应用程序中出现错误。
您可以尝试以下方法:
重新启动应用程序。
有关此错误的详细信息，请单击下面的“详细信息”链接。
较少信息 启动 URI: E:\Work\Test\WPFTest\WPFBrowser\bin\Debug\WPFBrowser.xbap
应用程序标识: file:///E:/Work/Test/WPFTest/WPFBrowser/bin/Debug/WPFBrowser.xbap#WPFBrowser.xbap, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c6b627854ade35d6, processorArchitecture=msil/WPFBrowser.exe, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c6b627854ade35d6, processorArchitecture=msil, type=win32System.Reflection.TargetInvocationException: 调用的目标发生了异常。
---> System.Reflection.TargetInvocationException: 调用的目标发生了异常。
---> System.Security.SecurityException: 请求“System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”类型的权限已失败。
在 System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
在 System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission cap, StackCrawlMark& stackMark)
在 System.Security.CodeAccessPermission.Demand()
在 MS.Internal.SecurityHelper.DemandWebPermission(Uri uri)
在 System.Windows.Controls.WebBrowser.DoNavigate(Uri source, Object& targetFrameName, Object& postData, Object& headers, Boolean ignoreEscaping)
在 System.Windows.Controls.WebBrowser.set_Source(Uri value)
--- 内部异常堆栈跟踪的结尾 ---
在 System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
在 System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
在 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
在 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
在 System.Xaml.Schema.XamlMemberInvoker.SetValueSafeCritical(Object instance, Object value)
在 System.Xaml.Schema.XamlMemberInvoker.SetValue(Object instance, Object value)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(XamlMember member, Object obj, Object value)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(Object inst, XamlMember property, Object value)
在 System.Xaml.XamlObjectWriter.SetValue(Object inst, XamlMember property, Object value)
在 System.Xaml.XamlObjectWriter.Logic_ApplyPropertyValue(ObjectWriterContext ctx, XamlMember prop, Object value, Boolean onParent)
在 System.Xaml.XamlObjectWriter.Logic_DoAssignmentToParentProperty(ObjectWriterContext ctx)
在 System.Xaml.XamlObjectWriter.Logic_AssignProvidedValue(ObjectWriterContext ctx)
在 System.Xaml.XamlObjectWriter.WriteEndMember()
在 System.Xaml.XamlWriter.WriteNode(XamlReader reader)
在 System.Windows.Markup.WpfXamlLoader.TransformNodes(XamlReader xamlReader, XamlObjectWriter xamlWriter, Boolean onlyLoadOneNode, Boolean skipJournaledProperties, Boolean shouldPassLineNumberInfo, IXamlLineInfo xamlLineInfo, IXamlLineInfoConsumer xamlLineInfoConsumer, XamlContextStack`1 stack, IStyleConnector styleConnector)
在 System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
在 System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
在 System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
在 System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
在 WPFBrowser.Page1.InitializeComponent()
在 WPFBrowser.Page1..ctor()
--- 内部异常堆栈跟踪的结尾 ---
在 System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
在 System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
在 System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
在 System.Activator.CreateInstance(Type type, Boolean nonPublic)
在 System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
在 System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
在 System.Xaml.Schema.XamlTypeInvoker.CreateInstance(Object[] arguments)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateInstanceWithCtor(XamlType xamlType, Object[] args)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateInstance(XamlType xamlType, Object[] args)
在 System.Xaml.XamlObjectWriter.Logic_CreateAndAssignToParentStart(ObjectWriterContext ctx)
在 System.Xaml.XamlObjectWriter.WriteStartMember(XamlMember property)
在 System.Xaml.XamlWriter.WriteNode(XamlReader reader)
在 System.Windows.Markup.WpfXamlLoader.TransformNodes(XamlReader xamlReader, XamlObjectWriter xamlWriter, Boolean onlyLoadOneNode, Boolean skipJournaledProperties, Boolean shouldPassLineNumberInfo, IXamlLineInfo xamlLineInfo, IXamlLineInfoConsumer xamlLineInfoConsumer, XamlContextStack`1 stack, IStyleConnector styleConnector)
在 System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
在 System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
在 System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
在 System.Windows.Application.LoadBamlStreamWithSyncInfo(Stream stream, ParserContext pc)
在 System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties)
在 System.Windows.Application.DoStartup()
在 System.Windows.Application.<.ctor>b__1(Object unused)
在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
在 MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
在 System.Windows.Threading.DispatcherOperation.InvokeImpl()
在 System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
在 System.Threading.ExecutionContext.runTryCode(Object userData)
在 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
在 System.Windows.Threading.DispatcherOperation.Invoke()
在 System.Windows.Threading.Dispatcher.ProcessQueue()
在 System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
这个是什么问题，该怎么解决？
您可以尝试以下方法:
重新启动应用程序。
有关此错误的详细信息，请单击下面的“详细信息”链接。
较少信息 启动 URI: E:\Work\Test\WPFTest\WPFBrowser\bin\Debug\WPFBrowser.xbap
应用程序标识: file:///E:/Work/Test/WPFTest/WPFBrowser/bin/Debug/WPFBrowser.xbap#WPFBrowser.xbap, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c6b627854ade35d6, processorArchitecture=msil/WPFBrowser.exe, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c6b627854ade35d6, processorArchitecture=msil, type=win32System.Reflection.TargetInvocationException: 调用的目标发生了异常。
---> System.Reflection.TargetInvocationException: 调用的目标发生了异常。
---> System.Security.SecurityException: 请求“System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”类型的权限已失败。
在 System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
在 System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission cap, StackCrawlMark& stackMark)
在 System.Security.CodeAccessPermission.Demand()
在 MS.Internal.SecurityHelper.DemandWebPermission(Uri uri)
在 System.Windows.Controls.WebBrowser.DoNavigate(Uri source, Object& targetFrameName, Object& postData, Object& headers, Boolean ignoreEscaping)
在 System.Windows.Controls.WebBrowser.set_Source(Uri value)
--- 内部异常堆栈跟踪的结尾 ---
在 System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
在 System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
在 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
在 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
在 System.Xaml.Schema.XamlMemberInvoker.SetValueSafeCritical(Object instance, Object value)
在 System.Xaml.Schema.XamlMemberInvoker.SetValue(Object instance, Object value)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(XamlMember member, Object obj, Object value)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(Object inst, XamlMember property, Object value)
在 System.Xaml.XamlObjectWriter.SetValue(Object inst, XamlMember property, Object value)
在 System.Xaml.XamlObjectWriter.Logic_ApplyPropertyValue(ObjectWriterContext ctx, XamlMember prop, Object value, Boolean onParent)
在 System.Xaml.XamlObjectWriter.Logic_DoAssignmentToParentProperty(ObjectWriterContext ctx)
在 System.Xaml.XamlObjectWriter.Logic_AssignProvidedValue(ObjectWriterContext ctx)
在 System.Xaml.XamlObjectWriter.WriteEndMember()
在 System.Xaml.XamlWriter.WriteNode(XamlReader reader)
在 System.Windows.Markup.WpfXamlLoader.TransformNodes(XamlReader xamlReader, XamlObjectWriter xamlWriter, Boolean onlyLoadOneNode, Boolean skipJournaledProperties, Boolean shouldPassLineNumberInfo, IXamlLineInfo xamlLineInfo, IXamlLineInfoConsumer xamlLineInfoConsumer, XamlContextStack`1 stack, IStyleConnector styleConnector)
在 System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
在 System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
在 System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
在 System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
在 WPFBrowser.Page1.InitializeComponent()
在 WPFBrowser.Page1..ctor()
--- 内部异常堆栈跟踪的结尾 ---
在 System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
在 System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
在 System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
在 System.Activator.CreateInstance(Type type, Boolean nonPublic)
在 System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
在 System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
在 System.Xaml.Schema.XamlTypeInvoker.CreateInstance(Object[] arguments)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateInstanceWithCtor(XamlType xamlType, Object[] args)
在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateInstance(XamlType xamlType, Object[] args)
在 System.Xaml.XamlObjectWriter.Logic_CreateAndAssignToParentStart(ObjectWriterContext ctx)
在 System.Xaml.XamlObjectWriter.WriteStartMember(XamlMember property)
在 System.Xaml.XamlWriter.WriteNode(XamlReader reader)
在 System.Windows.Markup.WpfXamlLoader.TransformNodes(XamlReader xamlReader, XamlObjectWriter xamlWriter, Boolean onlyLoadOneNode, Boolean skipJournaledProperties, Boolean shouldPassLineNumberInfo, IXamlLineInfo xamlLineInfo, IXamlLineInfoConsumer xamlLineInfoConsumer, XamlContextStack`1 stack, IStyleConnector styleConnector)
在 System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
在 System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
在 System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
在 System.Windows.Application.LoadBamlStreamWithSyncInfo(Stream stream, ParserContext pc)
在 System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties)
在 System.Windows.Application.DoStartup()
在 System.Windows.Application.<.ctor>b__1(Object unused)
在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
在 MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
在 System.Windows.Threading.DispatcherOperation.InvokeImpl()
在 System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
在 System.Threading.ExecutionContext.runTryCode(Object userData)
在 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
在 System.Windows.Threading.DispatcherOperation.Invoke()
在 System.Windows.Threading.Dispatcher.ProcessQueue()
在 System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
这个是什么问题，该怎么解决？
1. select the project ---> right click and select properties
2. you will get all the properties listed. select --- > security tab from left panel.
3. now select/ check the radio button that says " This is full trust application"
4. save and run ur application. this should solve ur problem.