Issue I have a dropdown menu which contains a checkbox and the name of projects. I added an ngModel to check if the project should be included in a list of projects (isChecked). The following code is in the view:
Continue readingTag: angular2-ngmodel
Angular 2 searchtext
Issue I have a dropdown menu with a search function and a list with projects (and checkboxes) I would like to make the searchterm update the projects in that list. example: I have 5 projects: – project1 – potato –
Continue readingAngular2 is there a way to use a two way binding with a checkbox?
Issue I want to use a two way binding for a checkbox, but if I use the [(ngModel)] it is showing true or false instead of the value of the checked item. Does anybody know how this is done? If
Continue readingHow to select/init first value in html select option after data loads thru Angular 2 observable?
Issue I have an html select with options that looks like this: <select [(ngModel)]=”role” (ngModelChange)=”roleChanged($event)”> <option *ngFor=”#role of roles” [ngValue]=”role”>{{role.Name}}</option> </select> roles[] gets assigned in a subscribe of an observable from my service. Everything is working fine except the select
Continue readingAngular2: [(ngModel)] with ion-select – show div depending on select value
Issue I’m working with ionic2 and angular2 with javascript (not typescript) I have 2 inputs: text and select. I want to hide input text if select.val() == ‘more’. How do I do that? This is the code i have: <ion-item
Continue readingAngular 2 | NgformControl Prevents my NgModel from updating
Issue This is my code: HTML: <div *ngFor=”let reject of rejects, let i = index”> <h2>{{reject.reason}}</h2> <input type=”text” [(ngModel)]=”reject.reason” [ngFormControl]=”inputField”> <rt-dropdown (selectedReason)=”selectReason($event.value, i)”></rt-dropdown> </div> and my mainTS: class { inputField = new Control(); constructor( private _broadcastService : BroadcastService) { this.inputField.valueChanges
Continue readingAngular2, inputmask ngModel binding
Issue I have some problem with ng2 and inputmask. For example I have had this code component.html <div class=”form-group col-sm-7″> <label class=”control-label” for=”sender-phone”>Phone *</label> <input type=”text” [(ngModel)]=”sender.phone” class=”form-control” id=”sender-phone” placeholder=”Phone”> </div> component.ts ngAfterViewInit() { let phoneNumberInput = document.getElementById(‘sender-phone’); let inputmask
Continue readingHow to get radiobutton value in angular 2?
Issue I am working a project where i need to bind 3 radio buttons per row in table. I am binding this table but somehow its not happening. I am sharing my code what i have done. table.table thead tr
Continue readingPass Ionic2 popover ngModel value to and call function in parent Page component?
Issue Here’s what I am trying to do. Putting group radio buttons in the Ionic2 popover menu. The options are actually controling which JSON file the content is going to load. User select an option, close the popover, content will
Continue readingAngular2 selected option with objects
Issue I have an Angular 2 app that is dealing with customers and a spring rest back end. The customer object has a customer type, which is also an object, and I have the drop down on the customer form
Continue readingAngular 2 Forms: binding html select to collection of objects
Issue I would like to display a collection of selectable objects in an angular 2 application (RC 5, forms 0.3.0) <select [(ngModel)]=”selectedItem”> <option *ngFor=”let item of selectableItems” [value]=”item”> {{ item }} </option> </select> <div> {{ selectedItem }} </div> The list
Continue readingangular2 – ngModel not working on labels (ng2-bootstrap, paper-kit)
Issue For me, [(ngModel)]=”foo” does not work in labels which are used to restyle default HTML5 form controls, more precisely radio buttons. The goal is to use these to change values like with default input radios. I currently use ng2-bootstrap,
Continue readingngModel of textBox doesn't hold the correct value when using Google Places Autocomplete API
Issue I want to use Google Places Autocomplete API with a textField, so that I can see proposals of cities when I type something. My textField is bound to a variable “searchFieldValue” using ngModel. This variable holds the correct value
Continue readingUsing Angular ngmodel without name attribute
Issue I am just reading and learning Angular2 tutorial. Here it says “Defining a name attribute is a requirement when using [(ngModel)] in combination with a form.” However, in the tutorial, it is using ngmodel without a name attribute here.
Continue readingAngular 2: Using pipes with ngModel
Issue I was using JQuery inputmask in one of my forms along with [(ngModel)], but for some reason they won’t work together. Using either one by itself works perfectly fine, but combining the two completely breaks [(ngModel)] and new inputs
Continue readingSet default select list value Angular2
Issue I want to set the default option for the select in angular 2 as “Select an option”. Here is the code that I have so far: HTML <div class=”form-group”> <label class=”col-md-4 control-label” for=”CustomFix”>Select an option:</label> <div class=”col-md-4″> <select id=”example”
Continue readingIs it possible to perform a two way binding on a custom directive with ngModel?
Issue My use case is completely different. When I strip off all the other factors, it boils down to this. Say I have the following input element <input type=”text” [customDirective] [(ngModel)]=”myValue” > The job of this customDirective is to look
Continue readingAngular 2: Select dropdown not selecting option despite "selected" attribute
Issue I have the following code for a select dropdown: <select id=”UnitOfMeasurementId” name=”UnitOfMeasurementId” [(ngModel)]=”UnitOfMeasurementId”> <option *ngFor=”let unit of UnitOfMeasurements” [ngValue]=”unit.Value” [selected]=”unit.Selected”>{{unit.Text}}</option> </select> Each item in the UnitOfMeasurements array looks something like this: Selected: false Text: “lb” Value: “1” Or this:
Continue readingAngular 2 ngModel Not Binding Object Property Defined In Class Definition
Issue I am new to angular 2, I tried [(ngModel)] as shown below. import { Component } from ‘@angular/core’; @Component({ selector: ‘my-app’, template: `<input [(ngModel)]=”model.name” name=”name”> <h1>{{model.name}}</h1>` }) export class AppComponent { constructor() { } model = {name: “some value”};
Continue readingAngular 2 Form – disable submit when ngModel = empty obj
Issue I have an Angular2 form that is created dynamically with a for loop. For this question I am concerned with the radio buttons in my form. The form is created in the HTML then from the TS I assign
Continue readinghow to use ngModel and ngIf for filtering data
Issue I am new to ionic2 i need to filter the data based on what i enter , so i thought of using ngModel and ngIf. My JSON contains list of name and email and the code is below. Please
Continue readingAngular 2 ngModel and index with select element
Issue I have a ng for loop like so <template ngFor let-game [ngForOf]=”(games)” let-index=”index”> <tr> <td> <select [(ngModel)]=”selectedPrice” class=”form-control” name=””> <option *ngFor=”let price of prices”>{{price}}</option> </select> </td> <td> </tr> </template> Obviously, changing the price for one element changes it for
Continue readingangular2-markdown package works on localhost but when I deploy on GitHub pages it gives me an error
Issue Situation I develop a site with Angular-CLI and will publish that on GitHub pages. the link to my project is https://heinpauwelyn.github.io. I’ve installed a package named angular2-markdown to render markdown files on my HTML pages. Below you see my
Continue readingAngular2 can't use ngModel in form repeated by ngFor
Issue How can I use ngModel for inputs across multiple forms that’s repeated by ngFor? Angular2 gives me error when I’m trying to do so. Error: Permission denied to access property “rejection” Example block of problematic code: <div *ngFor=”let item
Continue readingAngualr2- ngModel within ngFor not working. Model gets updated correctly but some error in the view
Issue I am working on a small task of creating a Trip Planner using Angular2. The work flow is as follows: The user will input start point and destination along with number of intermediate stop points. Once the user submit
Continue readinghow to bind component variable to form object instance property
Issue I am not quite sure how to bind a variable from my component class to a property value in my form object. The form needs to display this value and add it to the ngModel so that it can
Continue readingIs it possible to hack Angular 2 disabled input tag?
Issue For example I have this part of code in my component’s template: <input type=”text” class=”form-control” [(ngModel)]=”profileUser.role” name=”role” [disabled]=”!isAdmin”> And in my component’s module I have: if (this.currentUser.role == “Admin”) { this.isAdmin = true; } I want to give right
Continue readingHow to give correct path names for loadchildren in lazy loading angular 2 NgModule?
Issue How to give correct path names for loadchildren in app-routing.module file in the angular 2 ngmodule, I followed the ngmodule concept in angular main website but its not giving such informations. I am getting the issue with app-routing.module paths,what
Continue readingAngular2 ngModel inside of ngFor
Issue I am trying to bind an array of strings from my inputs, so in the html file I wrote this: <div *ngFor=”let word of words; let in=index” class=”col-sm-3″> <div class=”form-group”> <input type=”text” [(ngModel)]=”words[in]” class=”form-control” [attr.placeholder]=”items[in]” required> </div> </div> But
Continue readingAngular 2 – ngModel not updated from datepicker
Issue I have an input that is bound to a value in the model. <input type=”text” class=”form-control” [(ngModel)]=”currentDate”> I have a datepicker that I use to populate this input. When a value is chosen from via the datepicker the input
Continue readingHow does NgModel work internally (set value initially)
Issue I am looking at the source code of NgModel. I understand most part of it except that how is it setting the initial value of input. NgModel extends NgControl .. NgControl extends NgControlDirective .. NgControlDirective has this code: get
Continue readingNested ngFor with two-way data binding Angular2
Issue I try to make a table of input fields with help of nested ngFor with two-way data binding. I almost achieved this, but something with two-way data binding is wrong and I can’t find a problem. So, this is
Continue readingDynamically changing ngModel from button presses – Angular
Issue I have this code which allows the user to filter by a certain field: <input type=”text” class = “form-control” [(ngModel)]=”siteFilter.site_name”> <button type=”button” class=”btn btn-default”>Address</button> <button type=”button” class=”btn btn-default”>Site</button> <button type=”button” class=”btn btn-default”>Phone</button> In the component.ts file: siteFilter: any =
Continue readingHow to pass event data from drop-down to button angular 2
Issue I have a drop-down list that currently displays objects in arrayed fashion. The JSON data comes from a service which is injected into the component. I filter the data according to iso_id and upon selecting an option from the
Continue readingUpdate [(ngModel)] on jquery plugin event
Issue Is there any way to refresh ngModel on jquery event e.g. datetimepicker on ‘dp.change’ event. Select2 on select change event. Solution We can do something like that. It works for me. In html template <input type=”text” class=”form-control” [listItem]=”list” autocomplete
Continue readingngModel doesn't work properly in Angular 4
Issue I faced a problem with ngModel directive. I have an input <td><input type=”text” ([ngModel])=”desc”></td> in which I assigned value of that input to the variable called desc. Then in component I just want to print it in the console
Continue readingAngular2: how to chain ngModel with two-way bound variable of other component?
Issue I have a main-component which passes a variable to another component sub-component via custom two-way binding. The passed variable is used for an input tag via ngModel. These two variables are currently not in sync. How can I chain
Continue readingAngular 2 – Show element based on option value selected
Issue I’m looking for the cleanest way to show an element based on what is selected from a form drop down menu in Angular 2. I have tried a fair few different techniques but still no luck! Here is what
Continue readingWhat is the proper way to implement async typeahead search?
Issue In my Angular app, there is a page of “Listings”. Since there are hundreds of listings, the results only load 20 at a time and more are loaded when the user scrolls to the bottom and clicks More. I
Continue readingBinding the value in a textarea
Issue I’m trying to do the simplest two way binding in Angular2. I would like to share a variable between my component and it’s template. My template is: <textarea [(ngModel)]=”currentQuery”></textarea> And my component is: import { Component } from ‘@angular/core’;
Continue readingAngular – How can I write a condition in interpolation?
Issue I have a table which is being populated through the add client form. It works fine and the changes are displayed. The thing is I have a select list in which a user selects the specific source and then
Continue readingselect ngmodel not binding the variable
Issue I have a very simple page with two selects filled in with same data (bank accounts). One is aimed to be source and another target in order to create a transaction. In this simple scenario a transaction is just
Continue readingAngular 2 – Binding Component to multiple values
Issue I’m trying to implement a date range selector in Angular 2. I already have a working widget, which I have to link to the @angular/forms subsystem. What I would like is to be able to bind the two output
Continue readingAngular 5 – End to End testing with ngModel
Issue in last week we are trying to add e2e testing to our project, but it seems (after a big research in the web) there is no library that can work with Angular ngModel (version 2+). what can we do
Continue readingtwo-way data binding of input checkbox element
Issue My problem goes like this: I have this array and variable: // the options public items = [{id: 1, main: true}, {id: 2, main: false}, {id: 3, main: false}]; // the selected option public selectedItem = this.items[0]; and my
Continue readingngModel not updating in *ngFor Angular 4
Issue ngModel for input box is not updating when I create input boxes by clicking on add button. Input boxes are populating. But when I change values, respective box values are updating in input box, but not updating in interpolated
Continue readingangular4 kendo-numerictextbox ngModel two way data binding
Issue Below one is just sample. I need to multiple calculations dynamically. Total value is not updating if I change values in units/price text boxes. How can I calculate using ngModel? Should we use valueChange event? Angular 4 don’t update
Continue readingAngular trying to use ngModel on html element
Issue What Im trying is this: <div class = “form-group”> <label for=”funktion”>Funktion</label> <select formControlName=”funktion” id=”funktion” class=”form-control” ngModel #Funktion=”ngModel” required > <option *ngFor=”let Funktion of funktionen” value=”{{Funktion.Name}}”>{{Funktion.Name}}</option> </select> </div> <div *ngIf=”Funktion.value == ‘Administrator’ “> Some Text here </div> But it get
Continue readingAngular 2 – setting default value in dropdown when default is hard coded
Issue I have the following dropdown. I want to set All Patients as the default value. <select [(ngModel)]=”searchModel.careprovider”> <option [value]=”0″>All Pateints</option> <option *ngFor=”let user of practiceUsers” [value]=”user._id.$oid”> {{user.dn}} </option> </select> My model is declared this way: searchModel: any = {
Continue readingwriteValue function in ControlValueAccessor class called once in angular 2 custom component
Issue there is a custom angular2 component like below: template <input class=”form-control” id=”searchbox” placeholder=”شهر” (keyup)=”search()” [(ngModel)]=”name” autocomplete=”off”/> <div id=”searchresult” *ngFor=”let city of cities” (click)=”cityselected(city)”> {{city.name}} </div> component @Component({ moduleId: module.id, selector: ‘city-search’, templateUrl: ‘./city-search.component.html’, styleUrls: [‘./city-search.component.css’], providers: [ { provide:
Continue readingAngular 2: Array with checkbox not working properly
Issue I’m binding one array with Checkbox. However, When I try to change bool attribute for single element of array but it changes for all elements. My HTML Component is as below. <div class=”col-sm-4″ *ngFor=”let karyalay of karyalayListFinal”> <div class=”checkbox-fade
Continue readingHow to get an input to display and edit currency with angular 4 pipes
Issue My goal is to have an input field that allows the user to edit a number as currency. E.g. The user sees “$1,000”, they can type a ‘0’, and the edit box shows “$10,000”. And the resulting data model
Continue readingAngular <select> Bound to Object Confirm Change or Revert to the Previous Value
Issue I’m trying to achieve pretty simple <select> behavior: revert to the previous value, if user canceled the change. Actually, I succeeded, but that cost me few hours, and I’m still unhappy with the implementation, because it’s not so obvious
Continue readingAngular not performing two way binding for ngModel
Issue I have an array of string objects that are in the format of (old,new) values Eg: this.values= { “countByView”: { “count1”: “2(4)”, “count2”: “5(7)”, “count3”: “7(10)” } } As they are string I’m transforming them in HTML using below
Continue readingAngular 6 how to pass selected checkbox to ngModel
Issue I have problem with pass selected checkbox (which is iterated) to ngModel. <label class=”btn btn-outline-secondary” *ngFor=”let test of tests” > <input type=”checkbox”> </label> in ts I have model: testData = <any>{}; this.tests = [{ id: 1, name: ‘test1’ },
Continue reading(Editing Angular 5) I can't get the values of the object that is in NgModel
Issue I could not get the object of this field component.html <div class=”form-group”> <input type=”number” name=”totalPrice” class=”form-control” #lastname=”ngModel”[(ngModel)]=”invoiceService.selectedInvoice.totalPrice” readonly> </div> <!– working ok –> <div class=”form-group”> <input type=”number” name=”purchases” class=”form-control” #purchases=”ngModel” [(ngModel)]=”invoiceService.selectedInvoice.purchases[‘product’]” readonly> </div><!– not working –> this the element
Continue readingAngular 2: JQuery UI Datepicker not changing ngModel
Issue I have JQuery UI’s datepicker working in my angular 2 application, however it is not updating my ngModel. I have a variable called SeasonStartDate, which I want to update to whatever date the user inputs. When I select a
Continue readingRadioButton ngmodel not working for boolean values
Issue I have two radio buttons in Sample with ngModel. <div id=”container”> <input type=”radio” id=”radiobuttonstoerung1″ label=”Blinkend” name=”stoerungBlinkend” [(ngModel)]=”project.modelvalue” value=”true”/> <input type=”radio” id=”radiobuttonstoerung2″ label=”Dauersignal” name=”stoerungBlinkend” [(ngModel)]=”project.modelvalue” value=”false”/> </div> When I passed the boolean variable it is not working. export class RadioButtonController
Continue readingngModel kills output with white screen
Issue I’m new to Angular 2 and trying to follow along with a Pluralsight course that uses it. It has me doing two way binding via [(ngModel)]=”book.title”, but when I put in the following in my book-form.component.html: <div class=”form-group row”>
Continue readingHow to set default selected values in multiselect with ngModel in Angular 2
Issue How to set default selected values in multiselect. I get current_options and all_options from database and I want to update current_options and send new values do database again. Updating database works but when I refresh page none of options
Continue readingHow to attach input filed to another in Angular 2 only if it's pristine?
Issue I have two input fields: <input type=”text” [(ngModel)]=”title” name=”title”> <input type=”text” [(ngModel)]=”og_title” name=”og_title” value=”{{ title }}”> I want to make the og_title field to equal to title until og_title is pristine. How can I do this in Angular 2
Continue readingWhen pasting the same value into Input field, on second time pasting two-way data binding doesn't work
Issue I have the following input tag: <input type=”number” [ngModel]=”position” (ngModelChange)=”onChangePosition($event)” /> onChangePosition function mainly checks the length of the input value, if the length is more than 3 it cuts and leaves only 3 numbers. When I paste long
Continue readingHow to put in value for an input with ngmodel selectmode?
Issue I have two inputs with the same ngmodel: <input type=”text” placeholder=”Time Range To:” [(ngModel)]=”timeRange” [selectMode]=”‘rangeTo'” > <input type=”text” placeholder=”Time Range To:” [(ngModel)]=”timeRange” [selectMode]=”‘rangeFrom'” > in my ts file, i use public timeRange: Date[]; Retrieving the data is no problem
Continue readingAttribute directive with ngModel to change field value
Issue I want to change (force) input field values while typing using a attribute Directive. With it I would like to create directives like uppercase, lowercase, maxlength, filterchar, etc. to be used on input fields on forms. I found this
Continue readingHow to pass object as a param on ngModelChange angular 2
Issue Notice: Im just starting with angular.. Ok, this is what I have: <select class=”form-control custom-select” [(ngModel)]=package (ngModelChange)=”bindPackageCount(package)” formControlName=”packagingProfile”> <option *ngFor=”let package of createdPackageData” [value]=”package.count”> {{package.package.name}} – {{package.type.name}} </option> </select> By providing package.count as [value] of a select tag I
Continue readingAngular 2: Default checked on checkbox in ngFor
Issue I’m trying to set default value as checked on a checkbox inside my ngFor. This is my array of checkbox items: tags = [{ name: ‘Empathetic’, checked: false }, { name: ‘Smart money’, checked: true }, { name: ‘Minimal
Continue readingangular2 pass ngModel to a child component
Issue I have ParentComponent and a ChildComponent, and I need to pass the ngModel in ParentComponent to ChildComponent. // the below is in ParentComponent template <child-component [(ngModel)]=”valueInParentComponent”></child-component> how can I get the value of ngModel in ChildComponent and manipulate it?
Continue readingChanging value bind to ng-model doesn't change the value on the input text
Issue I have an input text box which use ngModel bind to a variable inside the component class. Upon clicking a button I want to clear the input text, however changing the variable value doesn’t change the input text. I
Continue readingHow to implement ngModel (two way binding) for radio buttons when used as custom Component?
Issue I have a custom Component for radio buttons using: NG_VALUE_ACCESSOR I embed the radio-buttons in a parent component and try to pass the ngModel and required attribute to it, but It doesn’t work. All the use case and code
Continue readingAngular 2- Error Cannot assign to a reference or variable
Issue I am using Angular 2. I have 2 nested ng-template as below: <ng-template ngFor let-support [ngForOf]=”support”> <div class=”row”> <div class=”col-sm-3″> <div class=”form-group form-float”> <div class=”form-line focused”> <select [ngModelOptions]=”{standalone: true}” [(ngModel)]=”support.option” class=”form-control”> <option value=”1″>1</option> <option value=”2″>2</option> <option value=”3″>3</option> <option value=”4″>4</option>
Continue readingUsing [(ngModel)] 2 way data binding with ngFor , array doesn't update the values of the rows
Issue I have built this form: Here’s the html code: <table class=”table table-hover table-bordered table-striped table-highlight”> <thead> <tr> <th *ngFor=”let cell of tableData2.headerRow”>{{ cell }}</th> </tr> </thead> <tbody> <tr *ngFor=”let row of tableData2.dataRows”> <td *ngFor=”let cell of row”> <input type=”text”
Continue readingHow to sum nested array field in table row in angular 6?
Issue I am using Angular 6 and Html. I want to sum or total a nested array field and show in row. I have a array list (‘marksEntryList’) with multiple student and also have a nested array list (‘marksDistributionList’) with
Continue readingWhy I can not limit an input's value length with Angular NgModel?
Issue I have an input field with two way binding and I want to change the user input to uppercase and limit it to 3 characters. I’m doing this in the setter of the variable. The uppercase replacement works if
Continue readingAngular 2 set and bind checkboxes with a ngFor
Issue I have an array like this: objectArray = [ {“name”: “Car”}, {“name”: “Bike”}, {“name”: “Boat”}, {“name”: “Plane”} ]; And the template like this: <li *ngFor=”#obj of objectArray”> <a href=”#” class=”small” data-value=”option1″ tabIndex=”-1″> <input type=”checkbox” (change)=”expression && expression.value = $event.target.checked
Continue readingngModel two way databinding does not bind correctly inside a *ngFor loop
Issue I have the following html inside a ngForm: <div class=”form-group form-group-flex” *ngFor=”let customerRole of customerRoles; let i = index”> <div class=”role-name”> <label for=”roleName”>Rolename{{i + 1}}</label> <input type=”text” class=”form-control” name=’role-name’ id=”roleName” [(ngModel)]=”customerRole.name”/> </div> <div class=”hourly-wage”> // can ignore this div,
Continue readingAngular select options control does not reset ngModel value automatically even if I empty the array of options
Issue I have a very basic select-option input control in Angular 8. User selects one item from dropdown and it’s reflected correctly in dropdown as well as in ngModel variable. But if I empty the source array programmatically, dropdown is
Continue readingHow can I prevent NgModel from setting invalid form control values?
Issue How can I prevent NgModel from setting invalid template-driven form control values? I verified that NgModel will set invalid values when two-way bound to a model instance. I am aware that I can create a copy of the model
Continue readingControlValueAccessor ngModel not being updated
Issue This is simple custom form control @Component({ selector: ‘app-custom-control’, template: ` {{ value }} <input [ngModel]=”value” (ngModelChange)=”onChange($event)”> `, providers: [{ provide: NG_VALUE_ACCESSOR, useExisting: forwardRef(() => CustomControlComponent), multi: true, }] }) export class CustomControlComponent implements ControlValueAccessor { private value: any;
Continue readingAngular 2 + how to select and loop over multiple elements with the same selector (elementRef.nativeElement)
Issue In my component I am trying to unselect all checkboxes with the same class name. querySelector selects only the first one each time (or once)… and querySelectorAll does not select anything. this is the function. I know its wrong
Continue readinghow to manipulate an ngmodel whose value is an attribute that comes from an ngFor
Issue I would like to know how I can manipulate an input that has as ngModel an attribute that comes from an ngFor, and change its value in the component, next I show my code HTML FRONT the idea is
Continue readingangular2 rc5 using component from feature module not working
Issue I have an app module and a feature module. A component called “AudioPlayerComponent” is declared in the feature module. I want to use it in the app module, but its not showing. No errors. Am I missing something? App
Continue readingHow can avoid the use of ngModel
Issue I’ve been stuck on something for hours and I need some help. I’m pretty new to angular. I’m working with the reactive forms, showing my code and explaining what I want to accomplish. <mat-form-field> <mat-select [(ngModel)]="filterCate" placeholder="Cate" type="search" aria-label="Search"
Continue readingTwo-way binding for select element doesn't work properly | Angular 11
Issue I have a JSON with structure: For item "item": { "pk": "123456", "title": "Title4", "list_fields": [ { "pk": "12345", "title": "Selector", "type": "SEL", "position": 1, "locked": true, "value": { "pk": 567, "value": "Finished", "position": 3, "color": "FF0000" } }
Continue readingAngular 2 ngModel in child component updates parent component property
Issue I made a simple UI which consist two components (parent and child). What the UI does is that when I type some stuff in the input box of the Child component. The value will change using ngModel. The child
Continue readingAngular – TextArea with Multiple Binding
Issue I have two input field ("name" and "city") and one textarea on my screen. Text area is filled up with some JSON data and data contains a few details like "name", "city", "address", "pin code" etc. How do I
Continue readingngModel in MatDialog not updating model when value entered in dialog
Issue I’m sure I must be missing something terribly simple but I’ve been thrashing about with this for a full day now… I have a MatDialog with one text input. Upon closing the dialog this value needs to be sent
Continue reading(ngModelChange) does not update the UI for specific input
Issue I have an input field where the user can enter the rate of something. When the user enters a value, I want it to be displayed after rounding it off and then the updated value to be stored on
Continue readingHow to show placeholder (empty option) in select control in Angular 2?
Issue I have this code in my template: <select [ngModel]=”selectedSubSectionId” (ngModelChange)=”onSubSectionChange($event)”> <option *ngFor=”let subSection of event.subSections” [ngValue]=”subSection.id”>{{ subSection.name }}</option> </select> In my component: public selectedSubSectionId: any; public onSubSectionChange(subSectionId: any) { // some code I execute after ngModel changes. } This
Continue readingUnderstanding Angular FormBuilder with Groups and ngModel data and how/if they can be used together?
Issue I am running into some issues with trying to use FormBuilder in my Angular app and how I can set the default values in the form based on my ngModel data. In my class, I have the following code:
Continue readingngModel leaves blank screen when called
Issue I’m trying to learn the basics of Angular2, so I was trying to make some tests. I’ve already downloaded typescript and angular/cli. I can use iterpolation, property binding, etc. but when I try to use a two-way data-binding like
Continue readingMultiple NgModelGroup nesting across different components
Issue When I try to nest NgModelGroup inside another NgModelGroup, it looks like Angular just ignore it. I’m using Angular 12 and Template-driven Forms. This is how my code looks like: app.component.html <form #form="ngForm"> <div class="col-auto"> <input name="name" id="name" ngModel
Continue reading"Trim" directive for angular 2 and reflect changes to ngModel
Issue I want to create Angular 2 directive that will tirm spaces only from begining and the end of the text that user has typed into input field. I have input field <input trim name=”fruit” [(ngModel)]=”fruit”/> and directive import {Directive,
Continue readingError: NG0301: Export of name 'ngModel' not found
Issue So I’m trying to add a simple validation message. App.Module.ts import { FormsModule, ReactiveFormsModule } from ‘@angular/forms’; @NgModule({ … imports: [ FormsModule, ReactiveFormsModule, ] }) HTML <div class="form-group"> <label>Nickname</label> <input type="text" class="form-control" id="nickname" formControlName="nickname" [(ngModel)]="MyProfileForm.nickname" name="nickname" #nickname="ngModel"> <div [hidden]="nickname.valid"
Continue readingHow to change the date format in the datepicker of Angular ngx-bootstrap inside a form
Issue Using ngx-bootstrap Datepicker in an Angular 4 application, I know that normally you can specify the date format this way: <input id=”from” name=”from” bsDatepicker [(bsValue)]=”myModel” value=”{{ myModel | date:’yyyy-MM-dd’}}”> but this time I’m inside a template-driven Angular form, so
Continue readingHow to change the date format in the datepicker of Angular ngx-bootstrap inside a form
Issue Using ngx-bootstrap Datepicker in an Angular 4 application, I know that normally you can specify the date format this way: <input id=”from” name=”from” bsDatepicker [(bsValue)]=”myModel” value=”{{ myModel | date:’yyyy-MM-dd’}}”> but this time I’m inside a template-driven Angular form, so
Continue readingHow to change the date format in the datepicker of Angular ngx-bootstrap inside a form
Issue Using ngx-bootstrap Datepicker in an Angular 4 application, I know that normally you can specify the date format this way: <input id=”from” name=”from” bsDatepicker [(bsValue)]=”myModel” value=”{{ myModel | date:’yyyy-MM-dd’}}”> but this time I’m inside a template-driven Angular form, so
Continue readingUsing Pipes within ngModel on INPUT Elements in Angular
Issue I’ve an HTML INPUT field. <input [(ngModel)]=”item.value” name=”inputField” type=”text” /> and I want to format its value and use an existing pipe: …. [(ngModel)]=”item.value | useMyPipeToFormatThatValue” …. and get the error message: Cannot have a pipe in an action
Continue readingAngular2 ngModelChange previous value
Issue Is there a way to get the previous(last) value of a field on ngModelChange? What I have goes something like this HTML <input type=”text” [(ngModel)]=”text” (ngModelChange)=”textChanged($event)”> Handler private textChanged(event) { console.log(‘changed’, this.text, event); } What I get is changed
Continue readingHow to force ngModel update when value did not change?
Issue I want to limit number input to 0-100 range, but on input, not during validation. I’m using ngModel to bind value and emitt change event: <input [ngModel]=”value” (ngModelChange)=”validate($event)” /> And then check if value exceeds given limits: public validate(value)
Continue readingAngular2 – Prevent Checkbox from being checked
Issue I have a table that contains a checkbox per row. In the table header, I have a Check All checkbox that toggles all of the table row boxes. I am trying to implement some logic to where if the
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