2-way-object-databinding

string interpolation in angular 2 and it's dynamicity

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问题 In Angular2, why if i put a property in a simple view, like this: <span>{{allowServer}}</span> it change whenever its value change on its .ts file, and if i put it like this: <button class="btn btn-primary" disabled={{allowServer}} >server</button> the button doesn't get the new value disabled? So, what is the rule for which I have to use interpolation instead of binding syntax? [disabled]=allowServer 回答1: [prop]="value" is for object binding to properties (@Input() of an Angular component or

how to bind angularjs objects to their keys and values

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问题 I read through some articles on angular model binding, and just out of curiousity, I was wondering if its possible to bind keys to input too, http://jsfiddle.net/x3azn/jM28y/4/ so I am hoping ot update the main arr through the input boxes and achieve 2 way key-binding. Is this possible? 回答1: as explained here Binding inputs to an array of primitives using ngRepeat => uneditable inputs, yes you can, but not that way try this function ctrl($scope) { $scope.arr = [{name:'1', lastname: '2'},

Two-way databinding of a custom templated asp.net control

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问题 This question was originally about getting two-way binding to work at all, but due to lack of specific answers and otherwise progress along the way, I've been updating it - You can check the edit history, but I figured this is better for clarity. The code listing below allows a single object to be two-way databound to a templated control. I'd like to extend this example in the simplest way possible to allow for nesting of similarly two-way databinding-enabled templated controls for complex

Where to place android BindingAdapter method?

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问题 This has to be the most basic of question but after a full day of reading tutorials and the documentation here I can't seem to understand where to put these methods. None of the guides mention where this thing is placed it just mentions to use the annotation on a static method. What static method? Any static method at all regardless of class? What is a good practice? do I create a CustomBinding class to host all these static methods? So long as I have the method has a BindingAdapter

Polymer data binding doesn't work when assigning markup to innerHTML that contains attribute data binding

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What is the simplest way to create data bindings to attributes, in Polymer, when working with innerHTML? This is an example of what i mean - http://jsfiddle.net/ry6og1q9/2/ <paper-input inputValue="{{foo}}" label="static foo"></paper-input> "staticFoo" paper-input is data bound to with {{foo}} - a two way data binding. var c = this.$.dynamicFooPlaceHolder; c.innerHTML = ''; var e = document.createElement('div'); e.innerHTML = '<paper-input id="dynamicFoo" inputValue="{{foo}}" label="dynamic foo"></paper-input>'; c.appendChild(e); But "dynamicFoo", created with innerHTML, is not bound to the

Two way databinding in ASP.NET

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问题 Let say that we have an object class Entity { public string ID {get; set;} public string Name {get; set;} } I want to bind properties to two textboxes on a page something like this: <asp:FormView ID="FormView" runat="server"> <ItemTemplate> <asp:textbox ID="TextId" Text='<%# Bind("ID") %>'/> <asp:textbox ID="TextId" Text='<%# Bind("Name") %>'/> </ItemTemplate> </asp:FormView> and then write this in code behind public EntityObject { get { return ViewState["Entity"] as Entity; } set { ViewState

Android Spinner Setting Selection with 2-Way Binding

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问题 I am struggling to get some functionality to work with Android spinners when configured with 2-way databinding. I would like to set the initial value of the spinner via the 2-way databinding on android:selectedItemPosition . The spinner entries are initialised by the ViewModel and are populated correctly, hence databinding appears to be working correctly. The problem is with the 2-way binding of selectedItemPosition . The variable is initialised to 5 by the ViewModel but the spinner's

Where to place android BindingAdapter method?

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This has to be the most basic of question but after a full day of reading tutorials and the documentation here I can't seem to understand where to put these methods. None of the guides mention where this thing is placed it just mentions to use the annotation on a static method. What static method? Any static method at all regardless of class? What is a good practice? do I create a CustomBinding class to host all these static methods? So long as I have the method has a BindingAdapter annotation and the first parameter is a View, it will work? I assume if the first parameter is of type View I

Android Spinner Setting Selection with 2-Way Binding

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I am struggling to get some functionality to work with Android spinners when configured with 2-way databinding. I would like to set the initial value of the spinner via the 2-way databinding on android:selectedItemPosition . The spinner entries are initialised by the ViewModel and are populated correctly, hence databinding appears to be working correctly. The problem is with the 2-way binding of selectedItemPosition . The variable is initialised to 5 by the ViewModel but the spinner's selected item remains at 0 (the first item). When debugging it appears that the value of the ObservableInt is

Detecting dirty using winforms data binding

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问题 I am using 2 way binding with winforms text boxes. I need to work out if the user has changed my data Looking at the help for the CurrentItemChanged Event It seems that this event does fire if a property has changed, however it also fires if current has changed. Is there a way to tell whether the data has changed? a similar question is also asked here but not answered in my opinion Oliver mentions "if your object within the List support the INotifyPropertyChanged event and you replace the