error when add event in MonoDevelop - c#

when i double click on Clicked signals to add new Clicked event, it not automatic add code. it show error
i use newest version of Monodevelop and Gtk# Toolkit and Window7 platform
how to fix it ??

Try to add it manually.
Into constructor of your window class write:
yourElement.Clicked += new EventHandler(Method);
void Method(~)
{
//logic
}
Where EventHandler is a delegate type of Clicked event, and Method is a method, which have same with EventHandler signature.

This is a bug still present in MonoDevelop 3.0.1. Look below for the full stacktrace. Adding an even manually is like Arman Stepanyan described it.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotImplementedException: The requested feature is not implemented.
at MonoDevelop.Ide.TypeSystem.CodeGenerationService.GetSuitableInsertionPoint (IEnumerable`1 points, IUnresolvedTypeDefinition cls, IUnresolvedMember member) [0x0003e] in /build/buildd/monodevelop-3.0.1/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.TypeSystem/CodeGenerationService.cs:335
at MonoDevelop.Ide.TypeSystem.CodeGenerationService.AddNewMember (ITypeDefinition type, IUnresolvedTypeDefinition part, IUnresolvedMember newMember, Boolean implementExplicit) [0x00043] in /build/buildd/monodevelop-3.0.1/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.TypeSystem/CodeGenerationService.cs:91
at MonoDevelop.GtkCore.GuiBuilder.CodeBinder.BindSignal (Stetic.Signal signal) [0x000de] in /build/buildd/monodevelop-3.0.1/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/CodeBinder.cs:182
at MonoDevelop.GtkCore.GuiBuilder.GuiBuilderView.OnSignalAdded (System.Object sender, Stetic.ComponentSignalEventArgs args) [0x00000] in /build/buildd/monodevelop-3.0.1/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/GuiBuilderView.cs:316
at Stetic.WidgetDesigner.OnSignalAdded (System.Object sender, Stetic.ComponentSignalEventArgs args) [0x00000] in :0
at Stetic.Project+c_AnonStoreyD.<>m_17 (System.Object , System.EventArgs ) [0x00000] in :0
at Stetic.GuiDispatch.InvokeSync (System.EventHandler h) [0x00000] in :0
at Stetic.Project.NotifySignalAdded (System.Object obj, System.String name, Stetic.Signal signal) [0x00000] in :0
at (wrapper remoting-invoke-with-check) Stetic.Project:NotifySignalAdded (object,string,Stetic.Signal)
at Stetic.ProjectBackend.Stetic.IProject.NotifySignalAdded (Stetic.SignalEventArgs args) [0x00000] in :0
at Stetic.ObjectWrapper.OnSignalAdded (Stetic.SignalEventArgs args) [0x00000] in :0
at Stetic.SignalCollection.OnInsertComplete (Int32 index, System.Object value) [0x00000] in :0
at System.Collections.CollectionBase.System.Collections.IList.Add (System.Object value) [0x00000] in :0
--- End of inner exception stack trace ---
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in :0
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in :0
at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in :0
at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in :0
at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in :0
at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in :0
at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in :0
at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in :0

Related

MvvmCross Failed to construct and initialize ViewModel for type

I am trying to create a mobile application using MvvmCross v.4.4.0.
Application works correct. But if collapse application and lock the phone, and then unlock and press "Overview" android button application crash (only on the Xiaomi phone).
I think android kills activity and then unsuccessfully trying to recreate it.
Could you, please explain me, what I do wrong? How to fix it?
Stacktrace:
Android.Runtime.RaiseThrowableEventArgs MvvmCross.Platform.Exceptions.MvxException: Failed to construct and initialize ViewModel for type Test.Core.ViewModels.MainMenuViewModel from locator MvxDefaultViewModelLocator - check InnerException for more information ---> MvvmCross.Platform.Exceptions.MvxException: Problem creating viewModel of type MainMenuViewModel ---> MvvmCross.Platform.Exceptions.MvxIoCResolveException: Failed to construct MainMenuViewModel ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Java.Lang.LinkageError: no static method "Landroid/text/Html;.fromHtml(Ljava/lang/String;I)Landroid/text/Spanned;" at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw ()
[0x0000c] in <89dd20b27a0b473a848558c84f1f086a>:0 at Java.Interop.JniEnvironment+StaticMethods.GetStaticMethodID (Java.Interop.JniObjectReference type, System.String name, System.String signature)
[0x00068] in :0 at Java.Interop.JniType.GetStaticMethod (System.String name, System.String signature)
[0x0000d] in :0 at Java.Interop.JniPeerMembers+JniStaticMethods.GetMethodInfo (System.String encodedMember)
[0x0003c] in :0 at Java.Interop.JniPeerMembers+JniStaticMethods.InvokeObjectMethod (System.String encodedMember, Java.Interop.JniArgumentValue* parameters)
[0x00001] in :0 at Android.Text.Html.FromHtml (System.String source, Android.Text.FromHtmlOptions flags)
[0x0003b] in :0 at Test.Droid.Providers.DialogProvider.ShowSnackbar () [0x00017] in <0fa1f44ee2f748fe816e790571c2153b>:0 at Test.Core.ViewModels.BaseViewModel..ctor ()
[0x0006d] in :0 at Test.Core.ViewModels.MainMenuViewModel..ctor (Test.Core.Managers.IExceptionManager exceptionManager)
[0x0000b] in :0 at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&) at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters)
[0x00002] in <89dd20b27a0b473a848558c84f1f086a>:0 --- End of inner exception stack trace --- at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters)
[0x0001c] in <89dd20b27a0b473a848558c84f1f086a>:0 at System.Reflection.MonoCMethod.DoInvoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
[0x00089] in <89dd20b27a0b473a848558c84f1f086a>:0 at System.Reflection.MonoCMethod.Invoke (System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
[0x00000] in <89dd20b27a0b473a848558c84f1f086a>:0 at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters)
[0x00000] in <89dd20b27a0b473a848558c84f1f086a>:0 at MvvmCross.Platform.IoC.MvxSimpleIoCContainer.IoCConstruct (System.Type type)
[0x0003a] in <4ddde23419c5494288c799fcdbb0f189>:0 --- End of inner exception stack trace --- at MvvmCross.Platform.IoC.MvxSimpleIoCContainer.IoCConstruct (System.Type type)
[0x0005b] in <4ddde23419c5494288c799fcdbb0f189>:0 at MvvmCross.Platform.Mvx.IocConstruct (System.Type t)
[0x00005] in <4ddde23419c5494288c799fcdbb0f189>:0 at MvvmCross.Core.ViewModels.MvxDefaultViewModelLocator.Load (System.Type viewModelType, MvvmCross.Core.ViewModels.IMvxBundle parameterValues, MvvmCross.Core.ViewModels.IMvxBundle savedState)
[0x00000] in <69bce0378e8e413982d3b552d7e387a8>:0 --- End of inner exception stack trace --- at MvvmCross.Core.ViewModels.MvxDefaultViewModelLocator.Load (System.Type viewModelType, MvvmCross.Core.ViewModels.IMvxBundle parameterValues, MvvmCross.Core.ViewModels.IMvxBundle savedState)
[0x00027] in <69bce0378e8e413982d3b552d7e387a8>:0 at MvvmCross.Core.ViewModels.MvxViewModelLoader.LoadViewModel (MvvmCross.Core.ViewModels.MvxViewModelRequest request, MvvmCross.Core.ViewModels.IMvxBundle savedState, MvvmCross.Core.ViewModels.IMvxViewModelLocator viewModelLocator)
[0x00015] in <69bce0378e8e413982d3b552d7e387a8>:0 --- End of inner exception stack trace --- at MvvmCross.Core.ViewModels.MvxViewModelLoader.LoadViewModel (MvvmCross.Core.ViewModels.MvxViewModelRequest request, MvvmCross.Core.ViewModels.IMvxBundle savedState, MvvmCross.Core.ViewModels.IMvxViewModelLocator viewModelLocator)
[0x00046] in <69bce0378e8e413982d3b552d7e387a8>:0 at MvvmCross.Core.ViewModels.MvxViewModelLoader.LoadViewModel (MvvmCross.Core.ViewModels.MvxViewModelRequest request, MvvmCross.Core.ViewModels.IMvxBundle savedState)
[0x00020] in <69bce0378e8e413982d3b552d7e387a8>:0 at MvvmCross.Droid.Views.MvxAndroidViewsContainer.ViewModelFromRequest (MvvmCross.Core.ViewModels.MvxViewModelRequest viewModelRequest, MvvmCross.Core.ViewModels.IMvxBundle savedState)
[0x00005] in :0 at MvvmCross.Droid.Views.MvxAndroidViewsContainer.CreateViewModelFromIntent (Android.Content.Intent intent, MvvmCross.Core.ViewModels.IMvxBundle savedState)
[0x00027] in :0 at MvvmCross.Droid.Views.MvxAndroidViewsContainer.Load (Android.Content.Intent intent, MvvmCross.Core.ViewModels.IMvxBundle savedState, System.Type viewModelTypeHint)
[0x00089] in :0 at MvvmCross.Droid.Views.MvxActivityViewExtensions.LoadViewModel (MvvmCross.Droid.Views.IMvxAndroidView androidView, MvvmCross.Core.ViewModels.IMvxBundle savedState)
[0x0006a] in :0 at MvvmCross.Droid.Views.MvxActivityViewExtensions+<>c__DisplayClass1_0.b__1 ()
[0x0000a] in :0 at MvvmCross.Core.Views.MvxViewExtensionMethods.OnViewCreate (MvvmCross.Core.Views.IMvxView view, System.Func`1[TResult] viewModelLoader)
[0x00012] in <69bce0378e8e413982d3b552d7e387a8>:0 at MvvmCross.Droid.Views.MvxActivityViewExtensions.OnViewCreate (MvvmCross.Droid.Views.IMvxAndroidView androidView, Android.OS.Bundle bundle)
[0x00062] in :0 at MvvmCross.Droid.Views.MvxActivityAdapter.EventSourceOnCreateCalled (System.Object sender, MvvmCross.Platform.Core.MvxValueEventArgs`1[T] eventArgs)
[0x0000c] in :0 at (wrapper delegate-invoke) System.EventHandler`1[MvvmCross.Platform.Core.MvxValueEventArgs`1[Android.OS.Bundle]]:invoke_void_object_TEventArgs (object,MvvmCross.Platform.Core.MvxValueEventArgs`1) at MvvmCross.Platform.Core.MvxDelegateExtensionMethods.Raise[T] (System.EventHandler`1[TEventArgs] eventHandler, System.Object sender, T value)
[0x0000b] in <4ddde23419c5494288c799fcdbb0f189>:0 at MvvmCross.Platform.Droid.Views.MvxEventSourceActivity.OnCreate (Android.OS.Bundle bundle)
[0x00014] in <4230cf00b647458f9b3e211590e6cc9d>:0 at Test.Droid.Views.BaseView`1[TViewModel].OnCreate (Android.OS.Bundle bundle)
[0x00000] in <0fa1f44ee2f748fe816e790571c2153b>:0 at Test.Droid.Views.MainMenuView.OnCreate (Android.OS.Bundle bundle)
[0x00000] in <0fa1f44ee2f748fe816e790571c2153b>:0 at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_savedInstanceState)
[0x00011] in :0 at (wrapper dynamic-method) System.Object:e6d6ef29-3746-4c8e-b037-c64f6dfe49f0 (intptr,intptr,intptr)
This is a linking issue. You have some kind of DialogProvider, which uses the Android.Text.Html.FromHtml method, which seems to be stripped out.
You can add expressions to LinkerPleaseInclude.cs to prevent the linker from removing code or you can add [Preserve(AllMembers = true)] attribute on your DialogProvider class.

Reflection loading assemblies weird error (TargetInvocationException)

I tried to use this code to invoke the SpeechSynthesizer.SpeakAsync method on some string (GetVerbatim(text)):
System.Reflection.Assembly assembly = System.Reflection.Assembly.LoadFrom("System.Speech.dll");
System.Type type = assembly.GetType("System.Speech.Synthesizer.SpeechSynthesizer");
var methodinfo = type.GetMethod("SpeakAsync", new System.Type[] {typeof(string)} );
if (methodinfo == null) throw new System.Exception("No methodinfo.");
object[] speechparameters = new object[1];
speechparameters[0] = GetVerbatim(text); // returns something like "+100"
var o = System.Activator.CreateInstance(type);
methodinfo.Invoke(o, speechparameters);
but it is throwing this huge error:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullRe
at System.Speech.Internal.ObjectTokens.RegistryDataKey.HKEYfromRegKey (Microsoft.Win32.RegistryKey regKey) <0x43da0b0 + 0x00034> in <filename unknown>:0
at System.Speech.Internal.ObjectTokens.RegistryDataKey.RootHKEYFromRegPath (System.String rootPath) <0x43d9e08 + 0x00027> in <filename unknown>:0
at System.Speech.Internal.ObjectTokens.RegistryDataKey.Open (System.String registryPath, Boolean fCreateIfNotExist) <0x43d9bc0 + 0x0009b> in <filename unknown>:0
at System.Speech.Internal.ObjectTokens.ObjectTokenCategory.Create (System.String sCategoryId) <0x43d9b50 + 0x0001b> in <filename unknown>:0
at System.Speech.Internal.ObjectTokens.SAPICategories.DefaultDeviceOut () <0x43d9978 + 0x0002f> in <filename unknown>:0
at System.Speech.Internal.Synthesis.VoiceSynthesis..ctor (System.WeakReference speechSynthesizer) <0x43d8818 + 0x007a3> in <filename unknown>:0
at System.Speech.Synthesis.SpeechSynthesizer.get_VoiceSynthesizer () <0x43d8708 + 0x0006b> in <filename unknown>:0
at System.Speech.Synthesis.SpeechSynthesizer.SpeakAsync (System.Speech.Synthesis.Prompt prompt) <0x43d85c0 + 0x00033> in <filename unknown>:0
at System.Speech.Synthesis.SpeechSynthesizer.SpeakAsync (System.String textToSpeak) <0x43d8210 + 0x00063> in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.Cultu
--- End of inner exception stack trace ---
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.Cultu
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) <0x188adb0 + 0x00046> in <filename unknown>:0
at ScriptLoader.Script+DMTBot.GetText (System.String text) <0x43d2128 + 0x0014f> in <filename unknown>:0
at MinecraftClient.McTcpClient.OnTextReceived (System.String text) <0x43954d0 + 0x0005e> in <filename unknown>:0

Exception thrown when using Mono+Aspose.Words running on ubuntu

I'm using Aspose.Words to convert a doc/docx file to a pdf file on ubuntu. Mono runtime has been installed. My code is below:
Document doc = new Document ("/data/upfile/test.docx");
doc.Save ("/data/upfile/test.pdf", SaveFormat.Pdf);
Somehow, when the second line of the code is executed, an error was thrown. The detail is below:
Unhandled Exception: System.ArgumentOutOfRangeException: startIndex +
length > this.length Parameter name: length at
System.String.Substring (Int32 startIndex, Int32 length) [0x00000] in
:0 at
x6c95d9cf46ff5f25.x0d299f323d241756.x3b67e683e83cab62 (System.String
xe4115acdf4fbfccc, Int32 x961016a387451f05) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x4469479613bec4d8
(Aspose.Words.Node xda5bf54deb817e37) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x7be41bff00df2c71
(Aspose.Words.Node xda5bf54deb817e37) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x699caa1974f95d1a
(Aspose.Words.Node xda5bf54deb817e37) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x21e4bd206d6231f8
(System.Object xa860e35844c20ac7) [0x00000] in :0
at x4adf554d20d941a6.x50e6e6d123fa4a35.xb5ef8a04e65b87e6
(System.String x1f25abf5fb75e795, System.Object xa860e35844c20ac7)
[0x00000] in :0 at
x59d6a4fc5007b7a4.xdeb77ea37ad74c56.xbbf9a1ead81dd3a1 (System.String
x1f25abf5fb75e795, System.Object xa860e35844c20ac7) [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.xbbf9a1ead81dd3a1 (System.String
x1f25abf5fb75e795, System.Object xa860e35844c20ac7) [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.xf3a1cfbffa44728c () [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.x47f176deff0d42e2 () [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.x83f07df6a659e05b () [0x00000] in
:0 at
x59d6a4fc5007b7a4.xcde671c53995c411.xd9db07500873ae98
(Aspose.Words.Document x3664041d21d73fdc,
x59d6a4fc5007b7a4.xdeb77ea37ad74c56 xdfde339da46db651) [0x00000] in
:0 at Aspose.Words.Document.UpdatePageLayout ()
[0x00000] in :0 at
Aspose.Words.Document.x410db0f4a89a6ef1 (Boolean x24af0daafcd8fb8c)
[0x00000] in :0 at
Aspose.Words.Document.get_xcde671c53995c411 () [0x00000] in :0 at Aspose.Words.Document.get_PageCount () [0x00000] in
:0 at
xf989f31a236ff98c.x6c74398bceb133f8.xa2e0b7f7da663553
(x28925c9b27b37a46.x8556eed81191af11 x5ac1382edb7bf2c2) [0x00000] in
:0 at Aspose.Words.Document.xf381a641001e6830
(System.IO.Stream xcf18e5243f8d5fd3, System.String xafe2f3653ee64ebc,
Aspose.Words.Saving.SaveOptions xc27f01f21f67608c) [0x00000] in
:0 at Aspose.Words.Document.Save (System.String
fileName, Aspose.Words.Saving.SaveOptions saveOptions) [0x00000] in
:0 at Aspose.Words.Document.Save (System.String
fileName, SaveFormat saveFormat) [0x00000] in :0
at MonoTest.MainClass.Main (System.String[] args) [0x00000] in
:0 [ERROR] FATAL UNHANDLED EXCEPTION:
System.ArgumentOutOfRangeException: startIndex + length > this.length
Parameter name: length at System.String.Substring (Int32 startIndex,
Int32 length) [0x00000] in :0 at
x6c95d9cf46ff5f25.x0d299f323d241756.x3b67e683e83cab62 (System.String
xe4115acdf4fbfccc, Int32 x961016a387451f05) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x4469479613bec4d8
(Aspose.Words.Node xda5bf54deb817e37) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x7be41bff00df2c71
(Aspose.Words.Node xda5bf54deb817e37) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x699caa1974f95d1a
(Aspose.Words.Node xda5bf54deb817e37) [0x00000] in :0 at x4adf554d20d941a6.x50e6e6d123fa4a35.x21e4bd206d6231f8
(System.Object xa860e35844c20ac7) [0x00000] in :0
at x4adf554d20d941a6.x50e6e6d123fa4a35.xb5ef8a04e65b87e6
(System.String x1f25abf5fb75e795, System.Object xa860e35844c20ac7)
[0x00000] in :0 at
x59d6a4fc5007b7a4.xdeb77ea37ad74c56.xbbf9a1ead81dd3a1 (System.String
x1f25abf5fb75e795, System.Object xa860e35844c20ac7) [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.xbbf9a1ead81dd3a1 (System.String
x1f25abf5fb75e795, System.Object xa860e35844c20ac7) [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.xf3a1cfbffa44728c () [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.x47f176deff0d42e2 () [0x00000] in
:0 at
x59d6a4fc5007b7a4.x487cdc969fefe3d6.x83f07df6a659e05b () [0x00000] in
:0 at
x59d6a4fc5007b7a4.xcde671c53995c411.xd9db07500873ae98
(Aspose.Words.Document x3664041d21d73fdc,
x59d6a4fc5007b7a4.xdeb77ea37ad74c56 xdfde339da46db651) [0x00000] in
:0 at Aspose.Words.Document.UpdatePageLayout ()
[0x00000] in :0 at
Aspose.Words.Document.x410db0f4a89a6ef1 (Boolean x24af0daafcd8fb8c)
[0x00000] in :0 at
Aspose.Words.Document.get_xcde671c53995c411 () [0x00000] in :0 at Aspose.Words.Document.get_PageCount () [0x00000] in
:0 at
xf989f31a236ff98c.x6c74398bceb133f8.xa2e0b7f7da663553
(x28925c9b27b37a46.x8556eed81191af11 x5ac1382edb7bf2c2) [0x00000] in
:0 at Aspose.Words.Document.xf381a641001e6830
(System.IO.Stream xcf18e5243f8d5fd3, System.String xafe2f3653ee64ebc,
Aspose.Words.Saving.SaveOptions xc27f01f21f67608c) [0x00000] in
:0 at Aspose.Words.Document.Save (System.String
fileName, Aspose.Words.Saving.SaveOptions saveOptions) [0x00000] in
:0 at Aspose.Words.Document.Save (System.String
fileName, SaveFormat saveFormat) [0x00000] in :0
at MonoTest.MainClass.Main (System.String[] args) [0x00000] in
:0
Any advice is appreciated. Thanks.
Often inner exceptions is a very common problem for converting words documents in PDF via Aspose.
It can be due to some reasones like:
2013 MS Word office.
Some complex elements in word
Old version of Aspose.Words.dll.
Solutions:
Try to update Aspose.Words.dll to new version. If it's still not working - write to aspose forum, and this error will be fixed in new release.
Check word document itself. may be you can find something thac call this inner exception, than try to remove it and check again. If this is acceptable of course.

System.TypeLoadException when I try to convert JArray to an object in a thread

I have a C# code that converts a JArray object jsonArray (JSON.Net) to a list of objects jsonList (List< MyClass >):
List<MyClass> jsonList = jsonArray.ToObject<List<MyClass>> ();
The code above works fine when I run it on the main thread, but if I put the same code inside a different thread, like this:
Thread t = new Thread(delegate() {
List<MyClass> jsonList = jsonArray.ToObject<List<MyClass>> ();
});
t.Start();
I get the following error message: "System.TypeLoadException has been thrown. A type load exception has occurred".
Does anybody have any idea why this is happening? The full stack trace is below. Thanks in advance!
System.TypeLoadException: A type load exception has occurred. at
Newtonsoft.Json.Utilities.ThreadSafeStore2[System.Type,System.Type].AddValue
(System.Type key) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Utilities.ThreadSafeStore2[System.Type,System.Type].Get
(System.Type key) [0x00000] in :0 at
Newtonsoft.Json.Serialization.JsonTypeReflector.GetAssociatedMetadataType
(System.Type type) [0x00000] in :0 at
Newtonsoft.Json.Serialization.JsonTypeReflector.GetAttribute[JsonContainerAttribute]
(System.Type type) [0x00000] in :0 at
Newtonsoft.Json.Serialization.JsonTypeReflector.GetAttribute[JsonContainerAttribute]
(ICustomAttributeProvider attributeProvider) [0x00000] in :0 at
Newtonsoft.Json.Utilities.ThreadSafeStore2[System.Reflection.ICustomAttributeProvider,Newtonsoft.Json.JsonContainerAttribute].AddValue
(ICustomAttributeProvider key) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Utilities.ThreadSafeStore2[System.Reflection.ICustomAttributeProvider,Newtonsoft.Json.JsonContainerAttribute].Get
(ICustomAttributeProvider key) [0x00000] in :0 at
Newtonsoft.Json.Serialization.CachedAttributeGetter1[Newtonsoft.Json.JsonContainerAttribute].GetAttribute
(ICustomAttributeProvider type) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Serialization.JsonTypeReflector.GetJsonContainerAttribute
(System.Type type) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Serialization.JsonTypeReflector.GetJsonObjectAttribute
(System.Type type) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Serialization.DefaultContractResolver.CreateContract
(System.Type objectType) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Serialization.DefaultContractResolver.ResolveContract
(System.Type type) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Serialization.JsonSerializerInternalReader.GetContractSafe
(System.Type type) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize
(Newtonsoft.Json.JsonReader reader, System.Type objectType, Boolean
checkAdditionalContent) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.JsonSerializer.DeserializeInternal
(Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000]
in <filename unknown>:0 at
Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader
reader, System.Type objectType) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Linq.JToken.ToObject (System.Type objectType,
Newtonsoft.Json.JsonSerializer jsonSerializer) [0x00000] in <filename
unknown>:0 at Newtonsoft.Json.Linq.JToken.ToObject (System.Type
objectType, Boolean isNullable) [0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Linq.JToken.ToObject (System.Type objectType)
[0x00000] in <filename unknown>:0 at
Newtonsoft.Json.Linq.JToken.ToObject[List1] () [0x00000] in :0 at GuiaTV.AgoraController.GetJSON () [0x00015] in
/Users/vegidio/Documents/Dev/Xamarin/GuiaTV/GuiaTV/Controllers/AgoraController.cs:24
at GuiaTV.AgoraScreen.m__2 () [0x0000d] in
/Users/vegidio/Documents/Dev/Xamarin/GuiaTV/GuiaTV/Views/AgoraScreen.cs:43
at System.Threading.Thread.StartInternal () [0x0001d] in
/Developer/MonoTouch/Source/mono/mcs/class/corlib/System.Threading/Thread.cs:697
It seems you are developing a touch based applicationfor this you need the latest edition of NewtonSoft for Mono Touch.Get it from here.
If you are building it for a modern UI its very easy follow the Win 8 templates or use a Task to initiate the thread.
Try putting in a Try,Catch,Finally block to get the exception details.
If you set a breakpoint on
List<MyClass> jsonList = jsonArray.ToObject<List<MyClass>> ();
and hover that breakpoint to look at the inner exception, what does it say?
The reason I ask is because a TypeLoad exception will either throw a null or give you a message on the inner exception that could help you a little more than this stack trace.

MonoDevelop button crash when clicked

You guys have been very helpful before, therefore I ask for your assistance again.
Building a simple code. Customer plugs in information in the entries, and when they click the button, it saves in the XLS file.
public partial class MainWindow : Gtk.Window
{
public MainWindow (): base (Gtk.WindowType.Toplevel)
{
Build ();
}
protected void OnButton2Click (object sender, System.EventArgs e)
{
ExcelFile ef = new ExcelFile();
// Loads the template file.
ef.LoadXls(#"/home/sinnich/Documents/Database.xls");
// Selects the first worksheet.
ExcelWorksheet ws = ef.Worksheets[0];
//Top informations
ws.Cells["B1"].Value = "Computer navn";
ws.Cells["C1"].Value = "Serial Nr";
ws.Cells["D1"].Value = "Låners navn";
ws.Cells["E1"].Value = "Telefon Nr";
ws.Cells["F1"].Value = "Dato for udlån";
ws.Cells["G1"].Value = "Forventet afleverings dato";
//Editable info
ws.Cells["B2"].Value = entry1;
ws.Cells["C2"].Value = entry2;
ws.Cells["D2"].Value = entry3;
ws.Cells["E2"].Value = entry4;
ws.Cells["F2"].Value = entry5;
ws.Cells["G2"].Value = entry6;
// Saves the file.
ef.SaveXls(#"/home/sinnich/Documents/Database.xls");
//Test af knappen.
label7.Text = "Overført til database";
throw new System.NotImplementedException ();
}
protected void OnDeleteEvent (object sender, DeleteEventArgs a)
{
Application.Quit ();
a.RetVal = true;
}
}
I get this error code when trying to run the button:
Marshaling clicked signal
Exception in Gtk# callback delegate
Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotSupportedException: Type Entry is not supported.
at GemBox.Spreadsheet.ExcelFile.a (System.Type A_0) [0x00000] in <filename unknown>:0
at GemBox.Spreadsheet.ExcelCell.set_Value (System.Object value) [0x00000] in <filename unknown>:0
at MainWindow.OnButton2Click (System.Object sender, System.EventArgs e) [0x000ba] in /home/sinnich/Projects/Rental Laptops/Rental_Laptops/MainWindow.cs:31
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0
at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0
at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
at Gtk.Application.gtk_main()
at Gtk.Application.Run()
at Rental_Laptops.MainClass.Main(System.String[] args) in /home/sinnich/Projects/Rental Laptops/Rental_Laptops/Main.cs:line 18
Got no clue what to do.
If I comment out the code with entry it don't crash.
Anyway how I else can get the xls files updated with editable text?
Changed the following:
ws.Cells["B2"].Value = entry1.Text;
ws.Cells["C2"].Value = entry2.Text;
ws.Cells["D2"].Value = entry3.Text;
ws.Cells["E2"].Value = entry4.Text;
ws.Cells["F2"].Value = entry5.Text;
ws.Cells["G2"].Value = entry6.Text;
Deleted the following:
throw new System.NotImplementedException ();

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