In my view, I have the below code to display some data from angular scope variables. The first two lines work fine. They display data from the scope variables but the line from ng-if does not display. What is wrong with my ng-if condition?
<div ng-controller="PaymentCtrl">
<h3>Payment successfully posted {{PaymentID}}</h3>
<h3> Receipt number {{ReceiptNumber}} </h3>
<div ng-if="{{ReceiptNumber}}">
<h3>Receipt generated with receipt number {{ReceiptNumber}}</h3>
</div>
</div>
As mentioned, ngIf takes an expression.
<ANY ng-if="expression"> ... <ANY>
See the AngularJS expression docs for more information on what this entails exactly. In your example, you are instead supplying an interpolated value. Try the following...
<div ng-if="ReceiptNumber">
<h3>Receipt generated with receipt number {{ReceiptNumber}}</h3>
</div>
JSFiddle Link - demo comparing both wrong and correct appreach
Related
I am working with some Angular and firebase code in which I am requesting some data from firebase and displaying them, simple stuff, but...
I had an array of string which contains some data like so,
[
"Refraction"
"折光"
]
the second one is HTML symbols and when I tried to render it to screen using angular interpolation
this happened
<p _ngcontent-rnr-c24>折光</p>
and when I manually hard code this to HTML file this is what I get
<p _ngcontent-rnr-c24>折光</p>
which is what I wanted...
Any help is appreciated, thank you
Since it's an HTML Symbol you might just be better off doing it like this:
<ng-container *ngFor="let symbols of symbols">
<p [innerHTML]="symbol"></p>
</ng-container>
I have a template that contains the following fragment:
<spark class="col-12" value="80"></spark>
I also have a variable accessible to this template as {{ratio}} such that if I change my fragment to:
<spark class="col-12" value="80"></spark>
Ratio: {{ratio}}
the correct ratio will be displayed on a page.
This is what does not work:
<spark class="col-12" value="{{ratio}}"></spark>
which results in "{{ratio}}" string being displayed.
Any ideas ?
You should be using the built-in directives for adding attribute values from the scope, for example ng-src, ng-style, ng-href, so on.
Documentation for the built-in directives
Will ng-attr work for you? ng-attr-value="{{ratio}}"
https://docs.angularjs.org/guide/directive#-ngattr-attribute-bindings
I'm using angular grid -
let's say i have a scope object as follows:
$scope.test = 3
If I want to dynamically set an html id, I would do something like this:
<div id="{{test}}"></div>
Checking the DOM, I see the following:
<div id="3"></div>
For my angular grid, I want to do something like this:
<div ag-grid="{{test}}"></div>
Checking the DOM I literally get:
<div ag-grid="{{test}}"></div>
Is there a way around this?
You can use ngAttr and do this like the following:
ng-attr-ag_grid="{{test}}"
Please check if this helps
Use
<div ag-grid="test"></div>
Check following link and check first example html file forag-grid tag with binding variable
Note: Based on example test should be object not string or other type.
Is {{ }} necessary?
You can try:
ag-grid="test"
I want to catch the first iteration in ng-repeat directive:
<div ng-repeat="product in products">
<div is-open="{if "[[$index]]" == 0}true{else}false{/if}">
...
</div>
</div>
But it doesn't work. Setting 0 as string also doesn't work. Comparing in angular also doesn't work.
How can I do that?
Try:
<div is-open="{{$index == 0}}"></div>
You should use special property $first of ng-repeat with ternary operator. Like see below snippet
<div ng-repeat="product in products">
<div is-open="($first) ? true : false">
...
</div>
</div>
I suppose smarty code will not work as you're expecting. Smarty is a server side programming language and angular runs on client side. In your query, smarty tags are unnecessary being called in angular directive. Above trick will work for you.
There are also some couple of special properties available too. You can check them out here
I am trying to filter a JSON list based on one of the contained values. For example, I have JSON objects where they all have name, type, description etc and I am attempting to filter based on the parameter stored in $stateParams (which happens to be type). It works if I hard code the type (e.g. "item in items| filter:{Type:'Grain'}").
Also, I know the value from $stateParams is working as I have it set to the page title. Is there a problem with my below syntax?
<div class="list card">
<div ng-repeat="item in items| filter:{Type:'{{type}}'}">
<a class="item item-icon-left" ng-click="onSelectItemList(item)">
<i class="icon ion-home"></i>
{{item.Name}}
</a>
<div>
Thanks in advance.
Yes, the problem is the filter expects an expression, You should not interpolate ({{) the expression to value.
change
filter:{Type:'{{type}}'}
to
filter:{Type:type}
type is expression evaluated against scope and {{type}} --> Value of expression evaluated against the scope.
Use:
<div ng-repeat="item in items| filter:{Type:type}">
You can't do nested interpolation. Filter is expecting an expression, therefore type is evaluated as is.