I have a question about the Nevron Chart Control. I created a new and "empty" class myNevronChart that inherits from the NThinChartControl class. Then in the init event I created an instance of this class and added it to the Page controls collection but the form opens empty and the chart is not rendered. If I use NThinChartControl class instead of myNevronChart everything works fine and the chart renders.
You need to wait for a SP - the problem is that the control searches for some resources based on the assembly defining the chart control. When you override the control in your code you effectively change the assembly where the control looks for resources.
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I am developing a 3.x based Eclipse RCP application. In the part of application, I am implementing Common-navigator plugin of Eclipse itself, in order to display resources in the workspace. I'have created the navigator view shown below:
But I would like display only one tree child element. More specifically, I only want clause folder and its elements to be shown.
What is the accurate way to do it?
Add dependecy of org.eclipse.ui.navigator if not exists in plugin.xml.
Add extension point org.eclipse.ui.navigator.navigatorContent in extension tab.
Create CommonFilter under that and provide your values to the properties on the right.
Create a class which extends 'org.eclipse.jface.viewers.ViewerFilter' and implement you logic in overridden public boolean select(Viewer viewer, Object parentElement, Object element) (Note : return true would retain the resource in Navigator otherwise it will be hidden).
Configure this extended class in extension for class property in CommonFilter.
And you are good to go for testing.
BTW, this way is adding common filter to across all the Navigator. If you need to configure for particular navigator then you need to get its view and then get viewer out of it and attach your filter to viewer. To achieve this you may need a trigger point e.g., a menu/button/startup extension!
I have followed the tutorials and now I am trying to extend that learning into a real app. In my app I use a JSON model. Unlike the tutorials, mine is a real-world app and I have to get user credentials to act as a filter when I load the data model. In the tutorials the model is loaded in component.js. In my app I have to prompt the user for id and password so I have a login fragment that appears modally over the first view in the app. This happens to be a master view, and critically it runs after component.js. After validating the user I collect JSON data from the server via Ajax and place it into the default model via this.setData(my_json).
When testing the routing from master to detail view I produced a stubborn bug in that this.getModel() called in the detail view produced an empty model. Huh - I just set the model in the master view and can see the data in the table control - what gives?
I considered a routing issue but confirmed that was not the problem - I can console log the parameters that pass through the router and anyway the detail view appears so routing is ok.
Recap: I use this.setModel() in the master page then this.getModel() in the detail page but the latter is an empty model.
Question: I want the model to be available across the app. The tutorials focus on setting model in component.js but I cannot. What is the correct syntax for setting the global model from the master view for example, or any other place that is not the component.js.
I think I need to use the following in the master (last line is significant):
var oModel = new JSONModel(); // declare a JSON model
oModel.setData(<json string>); // load a JSON string fetched from serve etc.
sap.ui.getCore().setModel(oModel); // important - set as the core model
I think the source of my confusion is that in the tutorials it seems that models are set in the component via
this.setModel(oModel); // a line in component.js
I therefore assume that this in component.js context is app-global whilst this in a view relates to the view along, which makes sense. Am I right?
In the tutorials this.setModel(...) inside the Component.js will set the model on the Component directly. Therefore, the model is visible in all views inside that Component.
When you see this.getView().setModel(...) inside a controller you know that the model is only set on that one view (and therefore it's also visible for it's children).
However, if you see something like this.setModel(...) inside a controller you should check what happens inside this.setModel(...). It is possible that the model is set on the view, or on the Component, or even somewhere else! Some of the tutorials make use of the so called "BaseController" concept. This is basically a parent controller of other controllers and therefore this approach allows to code some handy APIs that you can easily reuse in the child controllers that extend from this BaseController. For example, have a look at the BaseController of the Worklist App. There you can see that the setModel(...) API is setting the model on the view. That means whenever you call this.setModel(...) in your controllers which extend from that BaseController your model is set on the view!
Furthermore, because in a Master-Detail app there is no hierarchy between Master and Details page (parent/child relation) your models on the Master view are not visible on the Detail view.
In your case it seems to be best setting the model on the Component directly. You can do this by calling
this.getOwnerComponent().setModel(...);
inside any of your controllers. Or just do it directly on the Component.js like in the Wordlist tutorial. You can propagate the data to that model later, i.e. at anytime later from within your controllers.
I am trying to provide some default behavior to a standard Pane in Java FX. I would like to use this Pane in SceneBuilder. For some reason the layout isn't working as I would expect.
I created the following component:
public class GroupBox extends Pane {
public void configureGroupBox(String title) {
//Perform needed set up here.....
}
}
I have exported this control into a JAR file and imported that control into SceneBuilder. I am able to select this control in SceneBuilder and add it to my FXML.
However, the problem starts when I attempt to add controls within it. Even though this extends a javafx.scene.layout.Pane the layout engine of SceneBuilder is pushing all controls to the top left and overlapping them, rather than having no layout instructions.
Is what I am trying to do possible? If so, is there something else I need to do? At this point, my control is just an empty extension of the Pane class.
Thanks.
That is a Scene Builder limitation.
SB provides full operation for builtin containers only (i.e. the ones that are part of JavaFX). For custom containers, it provides limited operations: typically SB allows to drop a component inside but not to move it (because it considers that extending Pane does not imply free positioning of children).
I would like to know. How I can dynamically choose view? I would like to make the PropertyGrid in my application. The PropertyGrid should must change when user selects object. As I understand for this task I have to use a DataTemplate but how I can dynamically create DataTemplate in code? The fact is that I use plug-ins and View and ViewModel for each plugin located in separate dll and so I can't directly write DataTemplate in PropertyesViewModel.
How can I make the edit properties for each plugin using the Propertygrid if I can't use a DataTemplate?
For Catel it doesn't matter in which assemblies the views / view models are located since it uses relative naming conventions. However, if you want to show a custom view based on logic that might reside inside a plugin, I think this is out of scope for Catel.
To solve this issue, you must implement a custom service that can communicate with the plugins and resolve the right view for a selected object. One solution might be naming conventions (if it's a PersonModel, you might want to show the PersonPropertiesView and PersonPropertiesViewModel). However, this must be a custom service.
I am loading controls dynamically from the web server from separate XAP files. After creating an instance I want to show them in tab Pages. The controls can be MMVM controls using CM but also non MVVM standard controls.
Before trying the tab I tested to simply show a control dynamically on the page by using:
<ContentControl Name="TestControl" />
Test control is a property of Type UserControl which is set via creating a new Instance of a dynamically loaded control. Now this gives me an error that it can't find the view. In case of non MVVM controls there is of course no view, so how do I load a non MVVM control?
I tried to make the test control a MVVM control, but still get the cannot load view error. Makes sense as such instance is not created. If I create an instance of the dynamically loaded view besides the view model, how do I "Add" this so that CM finds it?
Last but not least, how do I bind this to a tab control in Silverlight? The idea is to have a collection of user controls (plugins) which each is rendered in its separate tab page.
Thanks for any help.
(I got this done in no time NOT using MVVM, still not sure if MVVM is worth all the complexity)
There's no such thing as "mvvm control". MVVM is just a pattern not a control type. Basically, in Caliburn you don't need to work vith UserControls or Views directly, but if you pick the ViewModel first approach, Caliburn framework should be able to find the matching view for you. In your case since you're loading XAP files dynamically, you need to add them to the list of assemblies Caliburn looks to find a View/ViewModel (and bind them together) and this is done through IAssemblySource interface. According to the documentation here:
So, what is AssemblySoure.Instance? This is the place that
Caliburn.Micro looks for Views. You can add assemblies to this at any
time during your application to make them available to the framework,
but there is also a special place to do it in the Bootstrapper.