ObjectModel | Strong Dynamically Typed Object Modeling for JavaScript
kandi X-RAY | ObjectModel Summary
kandi X-RAY | ObjectModel Summary
ObjectModel intends to bring strong dynamic type checking to your web applications. Contrary to static type-checking solutions like TypeScript or Flow, ObjectModel can also validate data at runtime: JSON from the server, form inputs, content from localStorage, external libraries... By leveraging ES6 Proxies, this library ensures that your variables always match the model definition and validation constraints you added to them. Thanks to the generated exceptions, it will help you spot potential bugs and save you time spent on debugging. ObjectModel is also very easy to master: no new language to learn, no new tools, no compilation step, just a minimalist and intuitive API in a plain old JS micro-library. Validating at runtime also brings many other benefits: you can define your own types, use them in complex model definitions with custom assertions that can even change depending on your application state. Actually it goes much further than just type safety. Go on and see for yourself.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Returns a proxy for a model node
- Checks that the passed argument is valid .
- Creates a function
- array model
- Cast a Model instance .
- Main Assertion function
- Create a model
- Provides a proxied method on an array .
- Checks if the provided definition is valid .
- Creates a new Map
ObjectModel Key Features
ObjectModel Examples and Code Snippets
Community Discussions
Trending Discussions on ObjectModel
QUESTION
I am new to WPF and trying to understand how to use a UniformGrid:
https://docs.microsoft.com/en-us/windows/communitytoolkit/controls/uniformgrid
If no value for
RowsandColumnsare provided, the UniformGrid will create a square layout based on the total number of visible items. If a fixed size is provided forRowsandColumnsthen additional children that can't fit in the number of cells provided won't be displayed.
Based on this text, I thought if I bind a collection of 10 items to a uniform grid and specify 1 row and 3 columns then it would only show 3 items and the other 7 would be cut off.
However, I have built a sample application and with 1 row, 3 columns, and 10 items in my collection, I am getting 4 rows displayed. Here is my sample application:
...ANSWER
Answered 2022-Apr-01 at 12:09First of all, you are refering to the wrong documentation, yours is for UWP, not WPF.
The behavior should be the same, but it is not explicitly stated in the referenced documentation for WPF. However, there seems to be an issue that stems from setting VerticalAlignment to Center and is not related to the ItemsControl, it will be the same for an isolated UniformGrid.
Whenever the UniformGrid contains more than the maximum number of items it can display (Rows x Columns) and the VerticalAlignment is set to any other value than the default Stretch, all of the items are displayed regardless of the number of rows, but respecting the number of columns.
What you could do is remove the VerticalAlignment and try to compensate for it by aligning the ItemsControl in a way that it fits your original intent.
QUESTION
This is a small test app to try and figure this problem out from my main app. I'll paste the code first.
XAML:
...ANSWER
Answered 2022-Mar-14 at 07:07I think I've figured it out. First I enable the INotifyProperty on PositionModel.cs code above (the commented out part). Then I add:
QUESTION
I have an SAP CDS View exposed via Gateway and hosted on APIM. This CDS has CRUD operations enabled using @ObjectModel annotations.
One of the key fields from the CDS (SAP table) can be empty as per business process, but when I try to query for this full key via APIM service (with the empty property) I receive 404 - Resource not found:
The same query works fine inside SAP Gateway:
What should I do in order to APIM understand that this key field can receive empty (or null?) values?
...ANSWER
Answered 2022-Mar-11 at 02:47It is interesting to see this from the APIM service and gateway query, the result is different given the same query parameter, the only explanation to me is that there is a conversion at ABAP side and this cause no result can be loaded. Can you enable gateway trace at ABAP side to check the exact request when ABAP tries to query data when you use APIM client? Use transaction /IWNFD/TRACES to see the traces for your user at ABAP side.
Regards, Derek
QUESTION
How can i add an arc where two 3D lines meet?
Known: Radius, P1, P2, P3.
what i need: Pa (arc start point3D), Pb (arc end Point3D), Pc (arc center point3D),
...ANSWER
Answered 2022-Mar-06 at 18:16Assuming the arc is circular (your image shows some curve not looking even as an Ellipse so its most likely just BEZIER)?
Anyway the arc will be in the same plane as P1,P2,P3 so you can use Basis vectors to convert the problem to 2D ... Or you can do it directly in 3D using vector math I see it like this:
displace your lines
P1P2andP2P3by radiusrinwardsSo you need a normal vector of the plane P1P2P3 for example:
QUESTION
I am building a Xamarin Forms application using Shell in which I am not building your typical flyout. I have created a template each for the header, footer and content. The content contains data which is fetched from a database.
I'm defining these in my app.xaml file.
...ANSWER
Answered 2022-Feb-25 at 15:18I don't have the full picture on how you are defining your Shell's routes/navigation, but I believe what you are trying to achieve could be done using Shell event OnNavigated or OnNavigating.
- First thing, Shell (AppShell.xaml.cs) need to have access to the instance of your
FlyoutContentTemplateViewModelin roder to call the methodExecuteLoadFlightsCommand()from there. - Turn the accessibility of
ExecuteLoadFlightsCommand()to public.
AppShell.xaml.cs
QUESTION
I have a hard time understanding the difference between those 3 things when creating a project using Xamarin.Forms or MAUI. I know what these are - INotifyPropertyChanged is an interface you need to implement when you want to use bindings in XAML, BindableObject is Xamarin.Forms class that implements said interface and ObservableObject is a class found in Xamarin Community Toolkit that also implements that interface. I just don't really understand the differences between them (especially the latter two) and when you would use any of them? I have read different tutorials and they all say different things - that you need to implement the interface yourself (so your viewmodel implements it), that your viewmodel needs to inherit from BindableObject, or - if you're using Xamarin Community Toolkit (which you probably should use/are using) - inherit from ObservableObject. But - like I said - why should you use any of the solutions mentioned above over the others?
If you implement INotifyPropertyChanged interface Visual Studio (or ReSharper extension, I'm not sure which one) automatically implements the method it needs to and adds this code:
ANSWER
Answered 2022-Feb-23 at 12:53There is some confusion I think about the different classes:
Xamarin.Forms.BindableObject is meant to be used to create something like a custom view with bindable properties. It also implements INotifyPropertyChanged, but I don't think you should use it for a ViewModel.
The ObservableObject from the community toolkit can be used as a base class for any class you like to use with data binding, you don't need to implement it yourself.
If you have some custom requirements for handling the OnPropertyChanged, you do need to implement the interface yourself, but if you just want to have default behaviour, ObservableObject is perfectly fine.
QUESTION
I am trying to sort the neighborhoods by their populations. I used heap sorting algorithm in C#. I created an Array which keeps the population of the neighborhoods named "arr". And created an array which keeps the name of the hoods . It works good but how can I get output of sorting with name of the neighborhoods?
...ANSWER
Answered 2022-Jan-10 at 18:45From an OOP perspective you would keep the two properties (name and population of a neighborhood) together in one object. Then when you sort the objects, you'll still have the associated data right there.
There are several ways to do this. For instance, you could create tuples.
Here is how that is applied to your code:
QUESTION
ANSWER
Answered 2021-Dec-17 at 15:06You should set the ItemTemplate property to your DataTemplate instead of adding a ListViewItem:
QUESTION
I have a problem. I want to give a button a command from ViewModel, which is outside of ItemsRepeater ItemsSource. I need help on how to do such binding
Button in my ItemsRepeater
Details
My ItemsRepeater
...ANSWER
Answered 2021-Dec-15 at 12:33The easiest way to achieve that would be to bind to the ancestor
QUESTION
I have a function that for some reason, just seems to only display $Properties once, no matter how many users are passed to the script. Tried to throw in just the $user passed into the script to display but, that too only displays once. Not too sure why it's doing this as I have exhausted ideas on what it may be:
ANSWER
Answered 2021-Nov-22 at 18:50Solution was to define the hashtable inside the foreach loop instead of inside the begin { ... } block:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install ObjectModel
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
