I am trying to build an WinRT app with reactive ui and am getting the following error when constructing designdata:
The type initializer for 'ReactiveUI.RxApp' threw an exception
ArgumentNullException: Value cannot be null.
Parameter name: dispatcher
my design data looks like this:
<FormViewModel xmlns="using:sRM.Controls.ViewModels">
<FormViewModel.Form>
<Form xmlns="using:sRM.Models.Forms" Name="Design form"/>
</FormViewModel.Form>
</FormViewModel>
for my viewmodel
public class FormViewModel : ReactiveViewModel, IFormViewModel
{
private readonly IFormsService _formsService;
//private AccountViewModel _Data;
private Form _Form;
public FormViewModel()
{
}
..
any help would be appreciated!
This should be fixed in the latest version that will be released soon!
Update: This is now released in ReactiveUI 4.3.0
Related
I am working on local live staging in Liferay 7.1, in which I have one custom field in Web content. When I export those web content to local live, I want to check that custom field as result I would be export that web content.
So for that, I am extending doExportStagedModel in BaseStagedModelDataHandler as below.
#Component(immediate = true,service = {StagedModelDataHandler.class})
public class Demo extends BaseStagedModelDataHandler<JournalArticle> {
// All the stuff
#Override
protected void doExportStagedModel(
PortletDataContext portletDataContext, JournalArticle article)
throws Exception {
// overridden stuff
}
// Other stuff
}
When I am deploying this, I got below exception.
2018-11-20 04:04:12.669 ERROR The setJournalCreationStrategy method
has thrown an exception java.lang.IllegalArgumentException: argument
type mismatch
2018-11-20 04:04:12.850 ERROR The
setJournalFeedExportImportContentProcessor method has thrown an
exception java.lang.IllegalArgumentException: argument type mismatch
Does anybody having idea how can I do this proper way on this?
I'm using tapestry 5.4.1. I have a component with a module that requires prototype. I know prototype is available in the core stack. However how do I import this as a dependency.
My module:
define(["prototype"], function(container, link) {
return new Ajax.PeriodicalUpdater(container, link, {
method : 'post', frequency : 5, decay : 1
});
});
I tried adding this to the class but the path cannot be resolved
#Import(library = {"prototype.js"})
public class Update {
Tried injecting the asset and adding it to the environmental javascriptsupport but it somehow looks for it in the wrong location.
#Inject
#Path("classpath:META-INF/assets/tapestry5/prototype.js")
private Asset prototype;
and
javascriptSupport.importJavaScriptLibrary(prototype);
javascriptSupport.require("update").with(container, getLink());
I don't want to hard code the url with the generated hash.
/assets/meta/z67bxxxx/tapestry5/scriptaculous_1_9_0/prototype.js
Anything I am missing here? Any help would be appreciated.
Make sure you define correct infrastructure in your AppModule
#ApplicationDefaults
public static void contributeApplicationDefaults(MappedConfiguration<String, Object> configuration) {
configuration.add(SymbolConstants.JAVASCRIPT_INFRASTRUCTURE_PROVIDER, "prototype");
}
You don't have to specify dependency clearly ["prototype"].
I'm trying to get the hung of catel but have a problem.
Trying "Messaging via attribute" gets an compile error.
'Catel.MVVM.ViewModelBase.GetService(object)' is obsolete: 'GetService is no longer >recommended. It is better to inject all dependencies (which the TypeFactory fully supports) >Will be removed in version 4.0.0.'
private void OnCmdExecute()
{
var mediator = GetService<IMessageMediator>();
mediator.SendMessage("Test Value");
}
[MessageRecipient]
private void ShowMessage(string value)
{
var messageService = GetService<IMessageService>();
messageService.Show(value);
}
I'm using 3.9.
A hint and a code snippet whould be good help.
Thanks for your attention.
The GetService is marked obsolete. You have 2 options:
1) If you are using a view model, simply let the services be injected in the constructor:
private readonly IMessageMediator _messageMediator;
private readonly IMessageService _messageService;
public MyViewModel(IMessageMediator messageMediator, IMessageService messageService)
{
Argument.IsNotNull(() => messageMediator);
Argument.IsNotNull(() => messageService);
_messageMediator = messageMediator;
_messageService= messageService;
}
2) Use the GetDependencyResolver extension method:
var dependencyResolver = this.GetDependencyResolver();
var messageMediator = dependencyResolver.Resolve<IMessageMediator>();
Solution 1 is the recommended way.
Thanks for your answer.
I also found a good example in the "Catel.Examples" solution, link to download
I'm trying to re-use some of the model configurations on several entities that implements a interface.
Check this code:
public static void ConfigureAsAuditable<T>(this EntityTypeConfiguration<T> thisRef)
where T : class, IAuditable
{
thisRef.Property(x => x.CreatedOn)
.HasColumnName("utctimestamp")
.IsRequired();
thisRef.Property(x => x.LastUpdate)
.HasColumnName("utclastchanged")
.IsRequired();
} // ConfigureAsAuditable
as you can see I'm trying to call the extension method "ConfigureAsAuditable" on my onmodelcreating method like this:
EntityTypeConfiguration<Account> conf = null;
conf = modelBuilder.Entity<Account>();
conf.ToTable("dbo.taccount");
conf.ConfigureAsAuditable();
When debugging i get this exception:
The property 'CreatedOn' is not a declared property on type
'Account'. Verify that the property has not been explicitly excluded
from the model by using the Ignore method or NotMappedAttribute data
annotation. Make sure that it is a valid primitive property.
Thanks in advance :)
PD:
I'm using EF 5-rc, VS 2011 and .NET Framework 4.5
I think a better approach would be to implement your own derived version of EntityTypeConfiguration. For example:
public class MyAuditableConfigurationEntityType<T> : EntityTypeConfiguration<T>
where T : class, IAuditable{
public bool IsAuditable{get;set;}
}
Then, when building your model, use that new type:
var accountConfiguration = new MyAuditableConfigurationEntityType<Account>();
accountConfiguration.IsAuditable = true; // or whatever you need to set
accountConfiguration.(HasKey/Ignore/ToTable/Whatever)
modelBuilder.Configurations.Add(accountConfiguration);
I'm trying to override the getDescriptiveName() method in com.liferay.portal.model.Group
I found a wrapper (com.liferay.portal.model.GroupWrapper), so I tried to write a hook as written in the documentation :
liferay-hook.xml:
<service>
<service-type>com.liferay.portal.model.GroupWrapper</service-type>
<service-impl>fr.villedeniort.hook.expando.GroupWrapperImpl</service-impl>
</service>
fr.villedeniort.hook.expando.GroupWrapperImpl.java:
public class GroupWrapperImpl extends GroupWrapper {
public GroupWrapperImpl(Group group) {
super(group);
}
#Override
public java.lang.String getDescriptiveName()
throws com.liferay.portal.kernel.exception.PortalException,
com.liferay.portal.kernel.exception.SystemException {
return super.getDescriptiveName();
}
When the hook is deployed, it raises an exception :
java.lang.NoSuchMethodException: fr.villedeniort.hook.expando.GroupWrapperImpl.<init>(com.liferay.portal.model.GroupWrapper)
I browse the code I found out that it breaks at this part for a reason I ignore:
Constructor<?> serviceImplConstructor = serviceImplClass.getConstructor(new Class<?>[] {serviceTypeClass});
At this point, variables have theses values:
serviceType "com.liferay.portal.model.GroupWrapper" (id=14829)
serviceImpl "fr.villedeniort.hook.expando.GroupWrapperImpl" (id=14830)
serviceTypeClass Class<T> (com.liferay.portal.model.GroupWrapper) (id=14831)
serviceImplClass Class<T> (fr.villedeniort.hook.expando.GroupWrapperImpl) (id=14832)
Do you have any idea?
Thanks!
You should have also a constructor without any argument. Now you have one with constuctor arguments, but there is no pure class constructor that java searches when it makes class instance. After calling the pure constructor java then calls the argumented one.
I had similar case in some other context and this was the solution. <init> tag on the error message refers on this kind of issue.
Apparently, it's not possible to hook other classes than Services, so I had to find a different way. For my case, I hooked a JSP and wrote my own method to get the right descriptive name from the hook.