I am trying to make the mid-section to be read only and just enabling the button "OPEN".
I have the below original code. "router-outlet" renders the combination of several feature components. And I do not want to disable each and every elements or feature components
<div="row mid-section">
<router-outlet></router-outlet>
</div>
<div class="row">
<button class="btn btn-default"> OPEN </button>
</div>
I tried by adding as below:
<div="row mid-section" readonly="readonly">
But it still allows to edit and click on button inside mid-section div.
I would really appreciate your help. Thank you!
The HTML readonly property doesn't work like that. Its only for form fields and must be on that actual DOM element.
https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/readonly
Without seeing more of your code, I can't really give a better answer than these 2 options.
Option 1, a shared service that has that read only property. You could have a service, that has a behavior subject that you can update from the parent component. The inner components would all need to have that service injected, and do something appropriate when the value changes.
Option 2, you would need a container component that has a new boolean input, and it would need to pass that value down to all the children components (which would also need an input).
Related
I'm new to Angular and I just put in place an i18n (2 languages) system for a website I am creating. Everything works properly but in order to switch from one language to another in my header, I feel stuck.
I followed the Angular documentation to transfer my variables from child to parent component and I ended with this:
<input type="text" id="item-input" #lang>
<button type="button" (click)="changeChosenLang(lang.value)">
{{ 'global.lang' | translate }}
</button>
As you can see, I write my language in the input form and I send it to the proper component with a button. What I wanted was to click on my 'global.lang' text and to be able to send its value to the parent component, since the value is the language which is not actually used.
I don't know how to put my 'global.lang' text in a variable, neither what kind of balise I can use. Also I didn't know how to summarize my problem to search for it on StackOverflow so if you know a similar post, don't hesitate to post the link.
Thank you for your reading!
I found a less tortured way (poor brain) to have the result I wanted:
<span (click)="changeChosenLang()">
{{ 'global.lang' | translate }}
</span>
First I temporary changed my button to a span balise and I deleted the parameter from my changeChosenLang() function. Then, I transferred a variable 'lang' from my parent component to this one, witch contains the value of the language chosen in my app constructor. At each click, I change its value in my changeChosenLang() function and everything works great!
I hope it can help someone someday. The moral of this post is: the simpler, the better! Have a good day.
I was following the tutorial Tour of Heroes. While adding a new hero they say
You can use an element paired with an add button.
Insert the following into the HeroesComponent template, after the heading:
<div>
<label for="new-hero">Hero name: </label>
<input id="new-hero" #heroName />
<!-- (click) passes input value to add() and then clears the input -->
<button type="button" class="add-button" (click)="add(heroName.value); heroName.value=''">
Add hero
</button>
</div>
Here I don't understand what is #heroName inside in input element (what is it called) and how does it help in pairing that input element with the button element.
Basically, what is that #<keyword> syntax within that input element. I know that it is not the id as that is already declared.
To answer the question, it's a reference to the input. You can find more details here:
https://angular.io/guide/template-reference-variables
Template variables help you use data from one part of a template in
another part of the template. Use template variables to perform tasks
such as respond to user input or finely tune your application's forms.
In the tutorial context, it's a reference to the input element. It helps to pair it with a button to be able to access it's value, without having to actually define a variable in the component.ts and trying to update the template directly. This help you "skip" a step, and actually have direct access to that value.
Template reference variables can become very handy in certain cases and are commonly used for example in angular material ( to call a function for a component )
<mat-menu #menuComponent ...></mat-menu>
<button (click)="menuComponent.close()"></button>
In the above example, you bind the menuComponent variable to "mat-menu" component, in which case you can access all the variables, public methods of such. In that case we can call "close" method from the mat-menu component.
Let me know if this is still unclear and I can try to give you more examples and explanation
I have this button:-
<div class="dsk-col-1-4 card new">
<div class="div_center_div">
<span class="icon icon_plus-black-symbol"></span>
<h2>Create</h2>
</div>
</div>
But I tried with find element by classname:-
driver.findElementByClassName("dsk-col-1-4 card new").click();
But it does not work.
Any help?
Move to your element and click. Example:
new Actions(driver).MoveToElement(yourElement).Click().Perform();
The "by class name" locator usually expects a single class name to be passed:
driver.findElementByClassName("card").click();
If you want to use multiple classes, go with a "by CSS selector"
driver.findElementByCssSelector(".card.new").click();
Note that the dsk-col-1-4 class is not a very good choice for an element locator - this looks very much like a layout-oriented class name which not only have a higher probability to b changed, but also does not bring any information about the element and it's purpose. card and new on the other hand are a better fit.
Ok so I couldn't understand exactly Which element you want to click on,
So based on my assumption , try below Xpaths :
1) if it is <div class="dsk-col-1-4 card new"> that you want to click
//div[contains(#class,'dsk-col-1-4 card new')]
2) If it is that you want to click,
//span[contains(#class,'icon icon_plus-black-symbol')]
3) If it is <h2>Create</h2> that you want to click,
//h2[text()='Create']
Hope this Helps!!
Within your locator you're passing multiple class names, and although they are both assigned to the element the findElementByClassName function realy only works when it is a single class name. The way I'd do it would be to use findelement(By.Xpath()), in this instance you'd need to use
webDriver.findElement(By.xpath("//div[contains(#class,'dsk-col-1-4 card new')]")).click();
I have an Angular 2 application in which i have a master component containing tree child components.
In one of my child components ( lets call it user_input) i have a form with user input.
in my master component i have a button which needs to check if my form of the child component is valid, thus enabling it.
i have tried to access it via. (from master.view.html)
<user_input #usrInput></user_input><button
[disabled]="!usrInput.formname.form.valid(click)="next()">
Next</button>
But since my user_input form is not initialized at the time i validate om my master this throws an "of type unknown" exception.
Is there a clever way to solve this? i have a service shared by the two but i prefer not to use it for this.
Thanks in advance!
[UPDATE]
I have my child elements in an ngSwitch.
<div *ngSwitchCase="0">
<create-user-info></create-user-info>
</div>
<div *ngSwitchCase="1">
<create-user-services></create-user-services>
</div>
<div class="col-lg-12" *ngSwitchCase="2">
<create-user-conditions></create-user-conditions>
</div>
</div>
once i moved it out of it the error was resolved.
As i needed it to be in an ngSwitch, i used the solution kindly provided below
You could leverage the so-called safe navigation operator. This way, the following members only get evaluated, if usrInput is not null anymore.
<user_input #usrInput></user_input>
<button [disabled]="!usrInput?.formname.form.valid"
(click)="next()">Next</button>
In my AngularJS project I have an account details page where you can change your personal account information. This page allows for multiple phone numbers and e-mailaddresses to be supplied. Using mouse input (or tabbing to buttons and pressing them with space bar) works perfectly, however I'd like to add the convenience of the enter key pressing the 'logical' buttons.
My form looks like (accidentally forgot to translate a few items):
A simplified version of the HTML for the form can be found on PasteBin, I've mainly removed the directives for managing the lists.
All buttons are <button> elements except for the cancel button which an <a> to the previous page, and the submit button is <button type="submit">.
When selecting any text box and pressing enter, the first (non-disabled) <button> element is 'clicked'. Meaning if I would change the last name, hit enter, the first phone number would be removed.
When you're in a new entry of phone numbers or e-mailaddresses (the row with the green + button) it should click that button, and if it's disabled do nothing.
When you're in any other text box on the form it should hit the save button, and also if the save button's disabled, do nothing.
Both buttons will be disabled based on form validation.
There'd be no trouble in changing the type of a button from button to submit if that'd help.
I would preferably have an all HTML solution, using just semantics, but I doubt that's really possible. So the logical alternative would be to use an AngularJS directive.
Please do not provide a jQuery or plain JavaScript solution relying on IDs or something like that. I don't want to hack my way around AngularJS, rather embrace it.
In the meantime I've worked on a directive that allows me to declare what I've called 'submit scopes'.
In essence you have actions (inputs) and targets (buttons), they're bound through a service by a key you can assign in the template. To avoid keys from clashing and from simple annoying work you can create a submit-scope which will cause it's children to prepend a unique key to the value they're accessing.
Within a submit-scope you can still override an action to use a global key instead by setting the attribute global-submit="true".
Example code:
<div submit-scope>
<input type="text" submit-action />
<button type="button" submit-target>Pressing enter in the above field will click this button.</button>
</div>
You can view the entire source code and a slightly larger example on Plnkr.
I just tried to replace
<button>Cancel</button>
with
<input type="button" value="Cancel">
and it seems to work correctly...