angular-ngmodel | 易学教程

Select default value at ng-options

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问题 I have this code and information: $scope.options = [ { id: 1, label: "My label" }, { id: 2, label: "My label 2" } ]; $scope.selected = 2; <select ng-options="opt.label for opt in options" ng-model="selected"> <option value="">Select one</option> </select> However, the options are created like this: <select ng-options="opt.label for opt in options" ng-model="selected"> <option value="">Select one</option> <option value="0">My label</option> <option value="1">My label 2</option> </select> How

Copy JSON Object of One Select to another Select ng-model using AngularJS

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问题 I'm having a JSON Collection $scope.person = [ { "Id": 1 "Name": "John" }, { "Id": 2 "Name": "Jack" }, { "Id": 3 "Name": "Watson" }, ]; I'm having two HTML Select with same JSON Collection. I Selected a Person Watson in the First Select " Person ", then I need to update the Same in the Second HTML Select " Copy Person ". But I Can't able to update. I bind the JSON Object as a Value in the HTML Select instead of Id or Name <!DOCTYPE html> <html> <head> <title>HTML Select using AngularJS</title

How to pass ngModel to AngularJS component without 2-way binding?

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问题 I have custom input as AngularJS 1.5 component with one-way data bindings and ngModel as two-way data binding: return { bindings: { form: "<", fieldName: "@", minLength: "@", maxLength: "@", isRequired: "@", errors: "<", value: "=ngModel" }, templateUrl: "actTextField.html", controller: ActTextFieldController, } in file actTextField.js in provided Plunk. I want to follow A new Angular 1.x ES2015 styleguide, the path to Angular 2 where Todd wrote: We no longer should utilise two-way data

How do I properly get a reference to the host directive in a ControlValueAccessor?

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问题 How do I properly connect two directives, or a directive to a component (which is a directive too) in angular2 in the "angular way of writing code" ? Since the documentation on angular2 is still quite scarce, any insight or reference is greatly appreciated. This is what every angular2 example shows - binding to a string via ngModel : @Component({ template: 'Hello <input type="text" [(ngModel)]="myVariable">!' }) class ExampleComponent() { myVariable: string = 'World'; } Suppose I want to use

Angularjs disabling drop down

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问题 I have a ui in which based on the selection of one drop down another dropdown should be disabled. Both these dropdowns are generated using ng-repeat . Below is the code sample <tr data-ng-repeat="abc in xyz.divisionViewList" > <select data-ng-model="abc.selectedAppRole" ng-init="abc.selectedAppRole =abc.selectedAdRole" id="{{abc.applicationId}}_{{abc.divisionId}}" name="{{abc.selectedAppRole}}"> <option value="null">Select/Deselect a role</option> <option data-ng-repeat="roleDetail in abc

My angularJS ng-model is shared across browser tabs. How to prevent that

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问题 My angularJS ng-model is shared across browser tabs. I want to maintain a separate scope for each tab. I am storing data in SessionStorage.I dont have any issues with SessionStorage but ng-model which is having watcher, is shared across browser tabs. How to prevent that? 回答1: That is easy, there are hide options for it! When your application starts to run at http://Localhost:3000, an other application start at http://localhost:3001. In this application there are some configuration that can be

My angularJS ng-model is shared across browser tabs. How to prevent that

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How to access to an ngModel element inside a reusable component

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问题 I have an ngModel component inside my reusable component. The field is not part of a form. I would like to access to it to do some changes. I have tried the below code but it comes undefined in OnInit. Could you tell me how to access it ? Below code returns undefined @ViewChild('nameAccessor') ngModel:NgModel; ngOnInit(): void { console.log(this.ngModel); } Template <input ngModel (blur)="nameBoxChanged(nameAccessor)" (keyup)="nameBoxChanged(nameAccessor)" [ngClass]="{'redBorder'

JavaScript array is NaN? AngularJS ngModel

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问题 I'm trying to see what the value of an ngModel is: .directive('myDir', function() { return { require: '?ngModel', link: function(scope, elm, attr, ngModel) { if (!ngModel) return console.log(ngModel) console.log(ngModel.$modelValue) } }; }) Even though my ngModel is an array it logs NaN? 回答1: $viewValue and $modelValue default to Number.NaN -- JavaScript Definition for Not - a - Number. check Github and you find that var NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element'

ng-model and value combination not working for input text box

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问题 I'm having two input text box. I need to combine the values entered in two text boxes and display it in the third. I'm able to display it if I use only the value in the third text box. Box 1: <input type="text" ng-model="entity.name"> Box 2: <input type="text" ng-model="entity.code"> Box 3:Box1+Box 2 <input type="text" value="{{entity.name+ ' + ' + entity.code}}"> However if I use a model name in the third box, the logic doesn't seem to be working: <input type="text" value="{{entity.name+ ' +