bindable | Simple dependency injection for browser based javascript
kandi X-RAY | bindable Summary
kandi X-RAY | bindable Summary
Light weight dependency injection for client side components. Looks for all DOM elements with a data-bindable attribute, stores references within a registry and instantiates their respective classes.
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Trending Discussions on bindable
QUESTION
First question here, I will do my best.
I have a Data class that retrieve a data object with firestore at the creation. I have done some code to the setters with coroutines. I am not sure of my solution but it is working. However, for the getters, I am struggling to wait the initialisation.
In the initialisation, I have a callback to retrieve the data. The issue that the callback is always called from the main thread, event if I use it in a coroutine in another thread. I check this with:
...ANSWER
Answered 2021-Jun-08 at 09:01I have loocked for many solutions and the conclusion is, don't do it.
This design is worse than I thougt. Android does not want you to block the main thread even for a short time. Blocking the main thread is blocking all UI and synchronisation mecanism, it is really bad solution.
Even using another thread for the callback (that you can do with an Executor) is, I think, a bad idea here. The good way to wait the end of the task in the callback is to retrieve the task and use:
QUESTION
I have a piece of data of the type Seq[models.Tables.NotificationRow]. I am trying to send this to a model then map it in the view. But when trying to add the parameter it tells me that the type is not QueryString bindable. This piece of data is not in the url but is just a parameter for the controller function. I was wondering if there was any way that I could force play to accept it without seeing if it fit within the url as it will not be placed there. My controller code is:
...ANSWER
Answered 2021-Jun-04 at 00:01I promise I had been trying to solve this for a while but I just solved this with an implicit param. D'oh.
QUESTION
I've been looking into this problem for a while now, and I would like to know the proper way to do this. I want to make re-usable controls that the properties can be bound to, Then update the controls themselves when the bound property is updated from another source.
So this is kind of the layout;
I have a page (we can call it Page X) that implemented a View Model (View Model X). There is a property in the View Model X (RealPropertyX of type Boolean).
I have a user control that is a sliding checkbox that has a View and View Model.
The View has a Dependency Property:
...ANSWER
Answered 2021-May-25 at 15:19Generally speaking, a UserControl shouldn't be tied to a specific view model. It typically inherits its DataContext from a parent element which means that you can bind its dependency properties to several different view models depending on the context:
QUESTION
In my Xamarin App, I'm getting Dynamic Form from Server & add in XML Entry Control.
There are multiple Entry and they are dynamic (it could be of any number), as I don't know the number and their names, I can't write bindable properties in ViewModel to get the Value of Entry.
Is there any way to get the value of Entry from dynamic form?
ViewModel
Code the get the dynamic fields from API
...ANSWER
Answered 2021-May-18 at 05:49You could get all the Entry via Children of StackLayout. I use the same code from previous thread for referene.
Xaml:
QUESTION
From official document:
...The namespace declaration is then used when setting the attached property on a specific control, as demonstrated in the following XAML code example:
ANSWER
Answered 2021-May-06 at 03:42According to this document, you can try the following code:
QUESTION
How can i call InvalidateSurface method in this case? This method does not refer to the bindable object, but to the xaml element itself. I'm new to app development and I really need to figure this out.
Part of my xaml file ...ANSWER
Answered 2021-May-07 at 11:49To solve this problem i used a wrapper class:
QUESTION
ANSWER
Answered 2021-May-06 at 19:51have you tried to use this:
QUESTION
XCode Version 12.5 (12E262) - Swift 5
To simplify this example, I've created a testObj class and added a few items to an array. Let's pretend that I want to render buttons on the screen (see preview below), once you click on the button, it should set testObj.isSelected = true which triggers the button to change the background color.
I know it's changing the value to true, however is not triggering the button to change its color.
Here's the example:
...ANSWER
Answered 2021-May-04 at 18:47struct TestView: View {
@State var arrayOfTestObj:[TestObj] = [
TestObj(label: "test1"),
TestObj(label: "test2"),
TestObj(label: "test3")
]
var body: some View {
VStack {
ForEach(arrayOfTestObj, id: \.id) { o in
//Use a row view
TestRowView(object: o)
}
}
}
}
//You can observe each object by creating a RowView
struct TestRowView: View {
//And by using this wrapper you observe changes
@ObservedObject var object: TestObj
var body: some View {
HStack {
Text(object.label)
.frame(width:200)
.padding(20)
.background(Color.red.opacity(object.isSelected ? 0.4: 0.1))
.onTapGesture {
object.isSelected.toggle()
}
}
}
}
//Classes and structs should start with a capital letter
class TestObj: ObservableObject {
//You don't have to declare didChange if you need to update manually use the built in objectDidChange
let id:String = UUID().uuidString
//@Published will notify of changes
@Published var label:String = ""
@Published var value:String = ""
@Published var isSelected:Bool = false
init (label:String? = "") {
self.label = label!
}
}
struct TestView_Previews: PreviewProvider {
static var previews: some View {
TestView()
}
}
QUESTION
Although this question seems to be asked for multiple times, I can't seem to find the right solution, or put the pieces together, to solve the issue.
I have a CollectionView with inside the collection view a Bindable.Stacklayout.
The nested Stacklayout contains a Checkbox and the visibility of that Checkbox is being set by a property of the parent list (the CollectionView) datasource.
This initially works fine on load, however, as soon as the parent property changes (which also handles the visibility of the nested stacklayout) then the UI of the nested stacklayout is not updated. The question is, how can I achieve this?
The XAML:
...ANSWER
Answered 2021-Apr-27 at 09:25As Jason's opinion, you have some problems for Xamarin.Forms Relative Bindings, I do one sample that you can take a look. If I change ElementsVisible, the UI will update.
QUESTION
I am attempting to expand the Bookstore example by introducing an other ViewModel to have Sections within the book store. I my case I am calling it 'Library'. I am having difficulty in getting the books added to display in a second ListView. In MainPage in addition to the MainViewModel (which now displays the sections) I have added SubModelView to return the current Section. In my Xaml code I have constructed a second ListView with the code to display the books but it is not working. Can anybody advise what I am doing incorrectly. I have included a SubModelView in MainPage to access the current Section in which the books are being created and used this in the Xaml code.
...ANSWER
Answered 2021-Mar-02 at 07:53Based on your description and code, I assume that you want to add a layer called Section to your Library app. Input a Section name and add multiple books into the added Section with TextBox controls and Button controls. If you have any concerns about the following code, please feel free to contact us.
Here is a sample code for you:
Book.idl
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