When I click the button it's not refresh view even condition is true. e. Apr 14, 2020 · In this way, you do not have to replicate the whole tag with a *ngIf. Use Case - Change the button color based on the status coming Jul 4, 2019 · I noticed some major performance issues in my ionic project, so i checked what was going on, and found out that my *ngIf is triggered every time i click somewhere or the window is resized. It can be applied to any template. I am developing an application in ionic and I have the . Here is the description of my module, any comment is appreciated has it is my first contribution : Tested with : Angular 5 + Ionic 3 Demo: https://mkligknn. NgIf allows us to show and hide content based on the state of a piece of data. The presence of this static field is a signal to the Ivy template type check compiler that when the NgIf structural directive renders its template, the type of the expression bound to ngIf should be Apr 2, 2018 · Currently I working on some home project and learning ionic. 0. I am a php developer moving towards Ionic. Hope some will help me. Hope some one will help me. Jul 13, 2020 · Is there something I am doing wrong or have not understood about ng-template or ngIf? As you can see, I am printing the value of the opchoice variable and it prints correctly for each type of click. I am using change detection but even if I turn it off, it’ll still do the same. When the expression evaluates to true, Angular renders the template provided in a then clause, and when false or null, Angular renders the template provided in an optional else clause. Just specify what needs to be displayed when the data is loaded and optionally specify what to display when the data is loading and when an error occurs. Oct 21, 2017 · Also, Angular does not allow multiple *directives (for example: *ngIf and *ngFor) on the same element so how do I check for isAuthenticated to hide or show menu buttons. Bu *ngIf condition works only if in array is only one object. My problem is that after the call is done, the spinner dissapears, as expected, but the data takes like 2 seconds to be displayed on screen. ionic-v3. Below code is working only for the first load but not dynamically . Propiedades que varían dinámicamente. Below is my home. date | date:'EEEE d MMMM'}} {{ today | date:'EEEE d MMMM'}} It does display when using Ionic serve but it doesn’t when emulating on iOS. and I tried to import the imports: [CommonModule] part but i Aug 29, 2019 · Hi I have migrated from @ionic/angular 4. i’m trying to implement virtual scroll on a list of users - the list is generated to show who’s around you based on your location. 2 @ionic/app-scripts : 3. The issue is that when the action is performed and the status updates, the *ngIf that is being leveraged to show/hide the action appears to be effecting the sliding behavior. baseUrlConfig + results. In the below Oct 23, 2018 · I need to execute a children component code only one-time, from the father in ngAfterViewInit() method When I use @ViewChild this return undefined for the time it takes to load certain http requests. Then you display that in the template. Thanks in Advance! Nov 30, 2018 · help i have two ion router outlet becouse use custom qrcode native it works but when return to home when click other routes not enter on this ç_ç please help me friends &lt;!--&lt;ion-app *ngIf=&quot;!this. Now, let’s move on to the *ngFor directive. Modified 4 years, 3 months ago. Jul 5, 2019 · I have an small application where user can edit their account and after edit user route back to my account page. Sep 25, 2019 · I am trying to use ngIf and ngModel. In fact, after using a timeout, i realized that my ion-input was focus and unfocused instantly. In my HTML <ion-toolbar *ngIf=&quot;showSea May 17, 2021 · I have to click two times to trigger the click event of an ion-button code chunk below open the keyboard by focusing on ion-textarea and press save when keyboard. If you use ngIf or ngClass for that, you’ll have the DOM rechecking each ngIf statement x-many times per minute, even though the string will never change. With this template, a hamburger menu appears, and clicking the different options changes the endpoints/URL on a local server. This data is an array. Define two functions in component class. Can we change the number of tabs dynamically? <ion-tab [root]=“tab1Root” tabTitle=“Home” tabIcon=“home”> <ion-tab *ngIf=‘selected. Use *ngIf with Ionic. stackblitz. I have a page which shows a spinner until the call to an API REST is finished to retrieved the required data. 2. No matter where i put it, it doesn’t work, and in most cases breaks the page - can it even be implemented in this instance. Here’s my code so far … Apr 2, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Feb 10, 2020 · The ngIf directive also has some more perks you might want to know about, one of which is local variable assignment. Now I using an ngIf and hiding the whole thing for a moment and than displaying again. I setup a new clean ionic project and it also seems to happen there. Setting this property allows developers to programmatically expand or collapse certain accordions. I also have another application with ionic 3 and this thing is working there. Jan 9, 2018 · AFAIK, the only legal first-level children of an Ionic component are <ion-header>, <ion-content> and <ion-footer>. &lt;ion-item&gt; &lt;ion-label&gt; Jun 3, 2023 · Instead of dealing with the hassle of multiple *ngIf statements, we can adopt a more declarative approach. 1) Cordova Platforms : android 8. Nov 21, 2019 · ngif will eveluate only if there is emission, so if you collection doesn't emit value it'll just hang there, or you can give it an initial output of false, and return a false result if data is empty – Fan Cheung Sep 30, 2017 · It doesn’t matter if you are using Ionic2/3/4. I want rows with item. In that case the docs suggest that you should import your modal module (CommentPageModule) inside of the module, where you require this modal. I have a case like this that triggers a lot of warnings. Sep 8, 2017 · What version of Ionic are you using? Angular 2 does not have ng-show, ng-hide, use *ngIf instead. Now that's not how *ngIf then else work. I tried like this &lt;ion-content padding&gt; &lt;button ion-button *ng Feb 20, 2020 · I have an app with 11 pages in which the transition between two specific pages causes a very long lag time on the click event and a jagged transition to the next page. x Current behavior: On ionic4 we see many times performance issues and flickering on adding and removing ionic components from dom. You can use the *ngFor on an <ng-container> to loop through the i Aug 2, 2018 · answered Aug 4, 2018 at 4:35. I’m using ngif to toggle some content on the page, but in almost always when I open the page for the first time the events don’t fire correctly, if I pop the page from the stack and re-open it everything works smooth as butter. I wanted an ngIf directive but rendering the content only once then caching it. when i try, I get an error saying Unresolved Jun 16, 2020 · I started my Ionic project off of the ionic sidemenu template. condition=true; } Ionic Animations gives developers the ability to create powerful gesture-based animations by integrating seamlessly with Ionic Gestures. Asking for help, clarification, or responding to other answers. Angular, ng-templates with if condition. html code: &lt;ion-list&gt; &lt;ion-item text-wrap *ngIf="this. io/ Playground : https Dec 1, 2019 · Set Up Ionic Project. Dec 22, 2017 · I have a date field on my html page. But now I have a slightly different problem. for example , this what I use to store back a single course: Jul 24, 2023 · one way of fixing this is to use the *ngIf else syntax to render the swiper container only when the condition is true, and show a loader or empty div when the condition is false. Spent almost 3 hours going through docs and YouTube videos but no luck. 0 Cordova Plugins : cordova-plugin-ionic-keyboard 2. switch value). Jan 24, 2021 · Basically I am getting some object from external API (Strapi) and I am receiving it within GET method, but when I’m trying to display it on Views with ngIF * … I would like to ask for help because I’m facing some problem. Mar 17, 2018 · *ngIf="results. Regarding the routing configuration, super-tabs work differently than normal ion tabs, you don't need to nest routes because you already nest the different routes in the html when adding each page in the <super-tab> markers. I have a profile page where user info is displayed. So the if gives false on my iOS emulator. I realized you can do that with ngIf as well. . Better to do preprocessing in the ts file, and change the string to what you need. For the trip's status, there is an ion-item-sliding element that allows the user to do some action based on the status. Services aren't really global variables, as you put it: they're not simply "accessible from anywhere". myFlag = flag everything is fine in my console, but still false in my html page. Something like <button ion-item menuClose *ngFor="let p of mobileOnlyPages" (click)="openPage(p)" *ngIf="condition">. once?? Dec 6, 2017 · Also, *ngIf="detailInfoOne " will be false for value null and undefined of detailInfoOne, no need to check like *ngIf=“detailInfoOne != null”. 4. Ask Question Asked 4 years, 3 months ago. I have tried using "ChangeDetectorRef" and use " Nov 2, 2020 · Hey @wenindoubt so I did a little debugging and was able to reproduce. If we have for example something May 13, 2020 · I try to use *ngif and else to pass a false to boolean. The first condition shows the button when an option is selected while the other condition hides the dispose button if clicked and show another buttons. 3 Ionic Framework : ionic-angular 3. The module was installed with npm. This is immensely useful for Apr 2, 2018 · I’m using *ngIf in Slides to get all values of id_qtype in slides. At the moment the button appears in the middle of the bottom of the card. So i wonder if ayone else has experienced this, and found a workaround? I suppose that if it’s a bug in ionic itself, it should probably be adressed at some point Jun 28, 2016 · Keyboard show/hide event (i'm using ionic keyboard) Angular js 2 *ngIf to show/hide button in navigation bar when keyboard show/hide; Detail: I'm using ionic v2 to build application. An Alert is a dialog that presents users with information or collects information from the user using inputs. Ionic 3 using ion-checkbox for only select one. My app have 3 tab bars (like default ionic app when run command ionic start). Apr 2, 2019 · ionic slider hide next button in the last slide and hide prev button in the first slide try to implement this using ngIf but it's not working ionic 4 &lt;ion-slides #slides&gt; () &lt;/ion-slid Jan 24, 2019 · This is an Ionic-4 problem. isCurrent&hellip; May 3, 2022 · I am new to angular and I am trying to solver for the following. Duplicated elements appear May 6, 2017 · Is there a way to use *ngIf to test if a variable is defined, not just if it's truthy? In the example below, the HTML displays a shipping cost for the red item only, because item. . condition 1 :I want to display add card button if user has not setup their card detail Jan 7, 2020 · So I'm trying to develop an ionic app that will handle different arrays of objects, and although I know the type of object I'm reading (location, business card, etc) and which fields that type of o Aug 7, 2021 · Thx for the precisions, I understand that I shouldn't duplicate those modules. I have temporarily resolved the issue by disabling May 5, 2017 · Angular: Using directives with *ngIf Hot Network Questions How to raise a vector to powers contained in a vector, change the list into a product, and do this for all the lines of a matrix, efficiently? Oct 31, 2023 · I am trying to convert some code from legacy syntax of ionic 6 code to the modern syntax of ionic 7. At it’s core an Ionic 3 app is Angular 4 code, and you can use any standard Angular syntax. component: Prerequisites I have read the Contributing Guidelines. Nothing I did would allow the ngIf to function to not render the component. Which accordion is open is controlled by setting the value property on ion-accordion-group. 5. Viewed 63 times 0 I have an array of objects, form fields like so: Jun 6, 2019 · Hello, I am in the process of porting my ionic 3 app to ionic 4. I have a list of 100+ cards with background images loading in on my home screen and the detail page each card transitions to causes the issue. Dec 14, 2015 · What version of Ionic are you using? Run ionic info from a terminal in your project folder to get this. É uma aula longa, por isso aborda Mar 31, 2017 · ngif is confusing me! I want to hide an image which is there when the page is empty, but when it becomes populated I want to hide it. Any idea? & Aug 11, 2018 · Bug Report Description using *ngIf in component template causes an error in browser console and no content is displayed. I want to do an if/else statement to display div in html . 0 to @ionic/angular 4. location. this. condition:boolean; myfunc(){. I have tried putting the ngIf in the ion-item, in an ion-grid and many other combinations, but none work. when I display console log. Ionic Info Ionic: ionic (Ionic CLI) : 4. May 11, 2019 · (Ionic 4) Ignored attempt to cancel a touchmove event with cancelable=false, for example because scrolling is in progress and cannot be interrupted Ionic Framework dnietoandres May 11, 2019, 8:33am Jul 21, 2016 · Short description of the problem: If I use *ngIf on an ion-tab, and it evaluates to true, then the ion-tab becomes the rightmost tab, even if it should be in a different position What behavior are Jun 19, 2017 · The above works on Ionic serve. I want to avoid using setTimeout since I do not know how long it can take http requests using @ViewChildren I get to know when the child component is not null but my code is executed multiple Angular’s NgIf directive doesn’t need to be complicated, yet you’re here because it kind of is. <div *ngFor="let nameList of nameList">. playing"> <ion-item text-wrap> <ion-label text-wrap> {{global. is up Its on ios as of now running on ionic 4 Instructions: <ion-textarea (ionBlur)="checkBlur(true)" (ionFocus)="checkFocous(false)" [(ngModel)]="item"></ion-textarea> May 18, 2018 · Oh oo. paused && !global Jun 20, 2017 · This is doing too much inefficient stuff in the template that gets executed way too often. Dec 27, 2017 · Ionic Forum How can I change card's colour with "ng-if"? ionic-v1. I'm having problems with "*ngIf", aparently it does nothing but when something change on the ionic page, for example, the keyboard shows when click on input or the sceen change from portrait to landscape it shows the change (hide/show) I did a simple example: Aug 13, 2020 · It is likely that your modules are being lazy-loaded. Mar 5, 2019 · Nope, I have this problem in ionic 4. Apr 29, 2019 · I’m trying to use the ionic-tooltips module with Ionic v4. Jun 15, 2020 · IONIC 4: *ngIf directive is not working in IOS. Mar 27, 2020 · Using Ionic 4, and I’m trying to show a div only if two conditions are met: <div *ngIf="variable1 === 1 && variable2 === 2">***</div>; That doesn’t work. length > 0” from the ion-icon line, it works perfectly well. This works perfectly in Android Devices but not working in iOS &lt;h3 *ngIf="status == 0"&gt;{{user. As I mentioned, *ngIf and [ngIf] do exactly the same thing, when the ‘brag’ variable is set to true it is going to render out ‘I’m awesome’ which is why we see both of those being output to the screen. Feb 9, 2017 · 4:45. status}} </ion-label> <ion-button *ngIf="!global. Like in your case I think its all and allVideoSubject. Before uploading of next object is timeout 20s. here is my . What you can do is use an ng-container. If the condition is true, then the template will be rendered. Aug 21, 2016 · ngIf was a bad idea for naming, it should have been ngif , but strict nomenclatures standards forced the naming to be ngIf and ngFor instead of ngfor and ngif – Juan Vilar Commented Feb 4, 2021 at 12:09 Bienvenido una vez más a este, en este nuevo vídeo de este curso de programación en Ionic 6 para principiantes con Angular y Capacitor te muestro como usar l Jun 29, 2017 · ngIf works as expected if value is available at time of rendering; I was very excited to learn Ionic, sadly landed on Ionic 4 which seems overly unstable right now! Jan 29, 2018 · I’m trying to compare values using ngIf and only show the div when it’s true. I can post a value back to server and vice versa, but when it came to this multiple selection , I don’t know what approach should be taken. I'm facing the issue of *ngIf directive not work properly. I have searched for existing issues that already report this problem, without success. Long story short: If you come back to an already visited Ionic page using the browser back button and interact with that page, the view does not get updated properly (until you do something like browser window resizing). id_qtype parameter have 5 values are: id_qtype = 1; id_qtype = 2; id_qtype = 3; Feb 9, 2020 · I'm developing store application with ionic 4. *ngFor. Mar 24, 2016 · If i remove the ngIf=“obs. Dec 9, 2019 · I'm trying to understand how the ngIf/else works, maybe it's something stupid but I don't get it. 1 this only works the first time the page loads, but never when the screen rotates. <ion-item&gt; &lt;ng-container [ngSwitch]=&quot;attribute. 0 and the screen rotate is discovered. 1 Oct 21, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Feb 20, 2017 · for example: I want to change 4 tabs to 3 tabs when I click an option in the menu (which changes the selected. Sorry Bro I user names Array1 and Array2 as just an example. answered Apr 11, 2021 at 18:03. Apr 29, 2019 · I’m trying to use the ionic-tooltips with Ionic v4. Mi pregunta es ¿cómo puedo reemplazar la condición dentro de *ngIf ya que *NO me acepta ngIf = "{{varname}}" Muchas gracias por la ayuda que me pudieran dar Jul 2, 2017 · When you use *ngIf the HTML is not rendered if the condition is not met, so when you set show to true myElement is not rendered. 4:48. Oct 10, 2017 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand I had the same issue because I created a new component with an embedded *ngIf inside of it running off of an internal class variable derived by logic inside of an ngOnChanges() method. 1. There may be a situation whereby leaving any of those out implicitly wraps them in an <ion-content>, which you break by actually having an <ion-content>. Aug 1, 2017 · Note: The type of lists is, public notesList: FirebaseListObservable<any[]>; public sNotesList: FirebaseListObservable<any[]>; Mar 8, 2019 · Bug Report Ionic version: [x] 4. Jul 20, 2021 · I have an ion-list that displays trip details. In this example we are going to learn how to use ngIf condition with various JavaScript operators. I agree to follow the Code of Conduct. To setup a form in an Angular/Ionic app, you need to run the below command. This *ngIf check if the friend is already a member of the group through inGroup() function and it also checks where the friend is an admin using checkadmin() function. Once the date is selected, I wish to call a function from my home. Creating a new blank project and following the installation steps from the module site I got some prob ion-alert scoped. I set up a small project, based on the blank project that can be created with the Jul 25, 2020 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Situation: My account Tab > Edit Account Page >; Save and Route Back to My account Tab* When User redire&hellip; Dec 28, 2017 · This is good example, but it doesn't work as I want, my problem is that I press submit button changeFlag(flag) in car. Simple NgIf Example in Jan 24, 2021 · I having the problem of cannot read property setFocus of undefined in ion-searchbar (ionic 5). feliperiverot June 15, 2020, 8:05pm 1. Mar 17, 2022 · The only way a component gets access to a service is by injecting it, ensuring that dependency injection works correctly. ngIf else with angular Ionic template. component I write this. Please advise me. I think the problem that the *ngIf has not been called after an on event. ngIf is a core directive of angular - so you won’t see it explicitly called out in ionic docs. Pay attention to *ngIf="isLoggedIn()". the tricky bit is that if user is not authenticated then I want to show 3 pages : login, register, contact and if authenticated show all other. Ask Question Asked 4 Apr 24, 2019 · This happens in all versions of Ionic, and probably also in Angular, but can someone please explain why calling a function within an *ngFor loop calls the function many, many times more than expected i. conditio&hellip; How would I have multiple cases in an *ngIf statement? I'm used to Vue or Angular 1 with having an if, else if, and else, but it seems like Angular 4 only has a true (if) and false (else) condition. I re-created the same scenario in a blank angular project without ionic, and it doesn’t happen there, so it might be an ionic-only issue Apr 9, 2019 · I'm trying to use *ngIf directive in ionic 4 with angular 7 projects. 9. Ask Question Asked 5 years ago. Share Dec 4, 2018 · Hi everyone ! I recently faced an issue in my personnal development and had to create a new directive to achieve it. Ionic Framework. However, I cannot seem to solve this. component for example, and I send the flag (which is true) with it to the other function in the bus. An alert appears on top of the app's content, and must be manually dismissed by the user before they can resume interaction with the app. then and else are for template reference. I can think of two ways to parse this, and it’s probably important to know which you mean: A. all items show up twice – with the I think that you want to disable or hide the 'previous' button on the page with indexCount == 0 and disable/hide 'next' button on the last page indexCount == length - 1 where length is the number of pages. When using *ngFor inside an <ion-item> which is inside an <ion-list> – all works fine: items are enumerated properly. The ngif is working but the else can not display the message. I want to use ngif for implement some display condition . A structural directive that conditionally includes a template based on the value of an expression coerced to Boolean. For example, in my current project, <code><ion-item *ngIf = "</code> compiles fine, but <code Oct 18, 2018 · Having a little bit of difficulty getting this to work correctly and would greatly appreciate some help. html Apr 3, 2019 · I need to use *ngIF inside the code of my ionic4 project, found some answers but none works as none is targeting ionic 4 and angular 7. type A,C,D to be col-6. bind(this) do the trick, as i mentioned it is working. l am taking data from navigation url from page 1 to page 2 . Dec 14, 2023 · This is a guest post from Simon Grimm, Ionic Developer Expert and educator at the Ionic Academy, an online school with 70+ video courses focused entirely on building awesome mobile apps with Ionic and Capacitor! With Angular v17, the Angular team introduced many groundbreaking changes to how you can write powerful and performant Angular apps. efekanesirgeme December 27, Yes, that works too. static ngTemplateGuard_ngIf: 'binding' Assert the correct type of the expression bound to the ngIf input within the template. Ionic CLI has to be installed on the development machine, and you can use the following command to install or update the tool: sudo npm install-g @ionic/cli. Share. If item is not in the cart show add button (1) &lt;div Feb 1, 2017 · Ionic 3 - *ngIf binding not updating when condition changes. I have made a simple question, if the answer is yes I'd like to display another label, if the answer is no, nothing happen. 8. Apr 11, 2021 · use [ngIf]="condition" instead of *ngIf . Feb 9, 2017 · In this video tutorial, we cover the concept of using structural directives like *ngIf, *ngFor, and *ngSwitchCase in Ionic 2. 0. I am trying to show add to cart button or plus, minus icons under the every single product. May 21, 2019 · What I want to do is a button having two different conditions because it is not appropriate if I do || in a single ngIf. In the service provider code that populates what goes into posts, I would loop through and set a today property on all of today’s posts. 2, (and 38 other plugins) Utility: cordova-res : not installed native-run : 0. Sometimes, the result of the ngIf directive is not a boolean. I would redesign this. Pulling data from Wordpress JSON API into Ionic 3 App using a Wordpress plugin called Better Featured Image, but ha&hellip; In Angular 4. Provide details and share your research! But avoid …. 2. dataType&quot;&gt; &hellip; Nov 22, 2017 · That’s awfully expensive. Jun 3, 2019 · Is is possible to add filter to an ion-list that is using async? I see example of using filter, but never with async. 4 Cordova: Cordova CLI : 9. If i do this: {{ post?. 0 you use *ngIf="condition;then stmnt1 else stmnt2". Creating a new blank project and following the installation steps from the module site I got some problems. Oct 22, 2021 · Level up your programming skills with exercises across 52 languages, and insightful discussion with our dedicated team of welcoming mentors. switch==2 ’ [root]=“tab2Root” tabTitle=“about Dec 4, 2018 · I’m two hours that I try ngclass with ionic 4 ngif class in all their forms I’m creating a mobile app but when the value changes from true to false nothing appears help me … condition:boolean; myfunc(){ this. shipping is both Jul 29, 2017 · Greetings Ionic-People, we have a little problem using the cordova-browser build of ionic 3. I am using Ionic 5 with Angular 9. I have found the below link very useful to understand the concepts. Ionic 4 showWhen hideWhen. First with some missing components that I was able to fix manually changing the imports of some files, just like in this question. Angular *ngIf Examples with JavaScript Operators. But now when using the same *ngFor loop but inside of an <ion-item-sliding> (which is inside of an <ion-item-group> that in turn is inside an <ion-list>) the entire item group is repeated exactly twice, i. Angular allows you to save variables locally and access them with your ngIf directive. In the new version 4. teknofreek December 15, 2015, 4:31pm I am trying to show and hide play and pause button, when play is clicked i need to hide pause button and vice-versa. poster_path" trying to change jaquette based on if-then-else. basically: *ngFor and *ngIf cannot be used together on the same element. Mar 1, 2019 · I had an conflict of focus regarding with ion-input inside a ion-modal. Jan 5, 2020 · Quiero filtrar una lista con elementos (cards) que tienen las 4 propiedades, a, b, c y d. Instead, the color of the ion-text depends on the ternary operator inside the color -property. I’m still pretty Mar 26, 2018 · in component I have prepared uploading of object in array. Sep 12, 2019 · my app has a UDP receiver that, when receiving a certain string, updates a global value (i use a public class for comunication with pages) my problem is this: in a page i’ve this footer <ion-footer *ngIf="global. The problem is that the ngIf directive statement is executed multiple times. We simply pass it an expression to evaluate either truthy or falsy May 13, 2019 · Hi there ! I’m creating an app which contains a chat functionality and I’m trying to implement the scrollToBottom() function when I reach my chat page and my messages are loaded. Guruprasad mishra. Ionic 2 ionic 3 - ion-checkbox inside ngIf or ngSwitch not working. You have to use your actual array names. Structural directives are an Angular concept, but we will be discussing them in the context of an Ionic application. You should use hidden instead of ngIf so that element is rendered but it's display property is set to none using css, that way you can access myElement even when it is not shown like below: May 17, 2018 · I’m trying to conditionally render a paragraph with information stored in a component property but ngIf directive is not even showing the else template, cannot even test if the changes detection is working for the way I set the property. github. The variable will be false, but the icon stay on pause. Jan 26, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Mar 16, 2017 · got the mistake it should be *ngIf=’!search’ Home ; Categories ; FAQ/Guidelines ; Terms of Service ; Privacy Policy ; Powered by Discourse, best viewed with Jan 7, 2020 · I am using ionic 4 and I have a problem using ngIf directive. auth. Aug 12, 2019 · Ionic 4 form fields with *ngIf. Apr 17, 2019 · I am using the ionic framework to make an app. Then it’s working. Nov 2, 2019 · You forgot the asterisk in front of ngIf, which brought the entire house down. *ngIf needs a refresh, but i do not know (forgot) how. After that I got this other error: ERROR Error: Uncaught (in promise): Error: Template parse errors Jul 21, 2019 · Hello i want to change the ion-col breakpoint and width while i display rows from my db. My May 13, 2020 · TypeError: Cannot read property 'toUpperCase' of undefined on *ngif - ionic 4. My functions are as below: edit-group. Nov 5, 2019 · I'm using an if condition to check the count of an array and display if it has status 0. In the following example we are creating a track along which we can drag the card element. thank you, but I think find the soultion Apr 10, 2017 · The . ts file. So basically I am using php concept in Ionic project and now I stuck with ngIf condition. Jul 20, 2019 · I want to display data from database with the help of ngfor. Mar 10, 2020 · several elements in my view’s markup that use *ngIf render twice. Oct 2, 2019 · Ionic: Ionic CLI : 5. You typically won’t loop <ion-checkbox> directly. my code : &lt;ion-grid *ngFor="let chat of ChatListArray"&gt; &lt;ion-row Jun 25, 2018 · You have to remember that Ionic 3 is really just a UI framework. name}} May 21, 2019 · Hi guys, i want to add a clear button with small image to the bottom right of a ionic card but i fail. Nov 30, 2019 · The issue is that you're looping on the <ion-slide> so regardless of whether or not the *ngIf is evaluated to true, the <ion-slide> will display render with empty content. type= 'B' to be col-12 but rows with item. page. poster_path as 'null' || ''; then jaquette == noJaquette else jaquette == themoviedbServicesProvider?. mhtchong Mar 31, 2017 · I’m still new to Ionic but I have started to get the grips of it, however I’m experiencing some odd behaviour and not sure what’s causing it. Using ngIF in Ionic 3. I have attached an example below. Apr 6, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Aug 23, 2019 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Dec 27, 2019 · I’ve inherited an ionic 4 project, which needs some changes to make it work faster - currently it’s very slow. Mar 4, 2020 · HI guys im new to ionic i have a problem how to use *ngIf in displaying input field. ts Aug 27, 2023 · The `ngIf` directive, a core feature of Angular, enables you to conditionally display or hide elements in your HTML template based on the evaluation of an expression. 0, cordova-plugin-ionic-webview 3. 5 Aug 21, 2018 · I was using [(ngModel)] and (ionChange) on Ionic 3 but this didn’t work properly on Ionic 4/5 (it gave me this exact problem where the change event was getting called on initial binding) hence why I switched to using (ngModelChange) which seemed to fix the problem for everything apart from the ion-toggle element. 8 I currently trying to develop my own custom component and having issues trying to get the component to show when a boolean condition changes to true. RajaJakkampudi December 12, 2017, 7:15am Sep 13, 2018 · Nesta aula fizemos uma página de detalhes para que ao clicar em um dos itens da lista de filmes essa página fosse mostrada. component for example and inside the bus. Jun 18, 2019 · Using ngIf in Angular is very easy, as you can see we have declared the ngIf with (*) along with the condition. 0 (cordova-lib@9. 3 *ngIf not working, only when something change on Dec 4, 2018 · I’m two hours that I try ngclass with ionic 4 ngif class in all their forms I’m creating a mobile app but when the value changes from true to false nothing appears help me …. What fixed it was I had to kill my ng serve and restart my angular dev server. Before upload starts I copy the uploading object to the variable and want to show it in template. My question is, why this is happening? My code bellow. 1 After the update my pages cant discover screen rotate with *ngIf The above statements works fine with 4. everything-you-need-to-know-about-ng-template-ng-content-ng-container-and-ngtemplateoutlet. Apr 17, 2020 · I have found that, in Ionic, some trivial things ake a difference. Jan 30, 2018 · in my case, I found solution at this post on stackoverflow. Jul 20, 2019 · I am making an Ionic Angular App. What’s happening is Ionic Angular caches pages based on URL matches, so the history stack is sliced once you go forward to the post-detail URL (it’s essentially going back to that cached page) since you’re going to the same route. So it might be good to learn Angular outside of Ionic as well, just so you have a better grasp of Angual as a whole and not just the Ionic subset. Dec 9, 2016 · Thank you for your explanation…much appreciated my friend… I am a little bet familiar with the http. So let’s take it back to basics and uncover NgIf, Else and also the Then syntax to the fullest. Toggle Accordions . Modified 5 years ago. I have the following ion-button: <ion-button ion-button fill="clear" expand="block">UTILITIES</ion-button> I was hoping to make the fill=“clear” property dynamic on a variable. in page 2 l use activated route Jan 6, 2020 · Notice the *ngIf state in the ion-button. mktbk unmupvko zwp czeij hyckf zsrnea fdyi jhuieyg sgjdvn njly