I have a situation where i am sorting data on the basis of expression:
html :
<ul>
<li ng-click="expression = 'created_at'" ng-class="latest_icon: 'selected'" >latest post</li>
<li ng-click="expression = 'popularity'" ng-class="popular_post: 'selected'" >popular post</li>
</ul>
<div ng-repeat = "data in posts | orderBy::expression:true">
//showing data
</div>
So whenever user click on one of the list wheather it is popular or latest ,selected class will be activated. How could i give expression to ng-class so that selected class on list get activated. this is without ng-repeat where i can use $index and onselect we can active class. how can i do this here?
I am not sure which class you want to apply but you can do something like
<ul>
<li ng-click="expression = 'created_at';selectedOption='latest'" ng-class="{latest_icon:true, 'selected':selectedOption=='latest'}" >latest post</li>
<li ng-click="expression = 'popularity';selectedOption='popular'" ng-class="{popular_post:true, 'selected':selectedOption=='popular'}" >popular post</li>
</ul>
Here we create a variable selectedOption on the scope, set it's value on ng-click and check it in ng-class expression.
Here is an example of a conditional ng-class attribute from my code.
div(ng-class="{'fixed':isFixed}")
So from this I reckon your code should look something like this:
<ul>
<li ng-click="expression = 'created_at'" class="created_at" ng-class="'selected' : expression=='created_at'" >latest post</li>
<li ng-click="expression = 'popularity'" class="popular_post" ng-class="'selected' : expression=='popularity'" >popular post</li>
</ul>
I was doing some syntax error. We can simply resolve this
<ul>
<li ng-click="expression= 'created_at'" ng-class= "latest_icon : expression == 'created_at'">Latest </li>
<li ng-click="expression= 'popularity'" ng-class= "popular_icon : expression == 'popularity'">Latest </li>
</ul>
Here latest_icon and popular_icon are classes name which activate according to selected list.
Related
I have a project with Angular where I don't want to use a select element with ng-options, so I made up a list with different options in order to select one of them.
<div class="countrylist">
<ul>
<li ng-repeat="c in shippingCountry"><p>{{c.name}}</p></li>
</ul>
</div>
So the option selected would modify another element where the chosen option would be displayed.
<div>
<ul>
<li>{{selectedCountry}}</li>
</ul>
</div>
In order to do that, I would need to pass the data from the chosen option of the first element into the 2nd one. I have tried doing something like this
<li ng-repeat="c in shippingCountry" ng-click="selectedCountry = {{c}}"><p>{{c.name}}</p></li>
with no success.
You can check the plunker here Thanks in advance
I suggest you to use a function over there like this in the DEMO
<li ng-repeat="c in shippingCountry" ng-click="Click(c)"><p>{{c.name}}</p></li>
Having this method in your controller
$scope.Click=function (c)
{
$scope.select=c;
}
It creates child scope for each iteration, so explicitly refer parent scope:
Change like this,
<ul>
<li ng-repeat="c in shippingCountry" ng-click="$parent.selectedCountry = c"><p>{{c.name}}</p></li>
</ul>
DEMO
I've fixed your plunker here. It would be better to use methods in scope for this operations because they work in current scope, not in child
<li ng-repeat="c in shippingCountry" ng-click="selectCountry(c)">
<p>{{c.name}}</p>
</li>
// .html
<div>
<ul>
<li>{{selectedCountry.item}}</li>
</ul>
</div>
<div class="countrylist">
<ul>
<li ng-repeat="c in shippingCountry" ng-click="selectedCountry.item = c"><p>{{c.name}}</p></li>
</ul>
</div>
// controller
$scope.selectedCountry = {
item: $scope.shippingCountry[0]
};
Example
I want to create a set of pills with all the states with their number of electors and I want the pill that is clicked becomes active. So, my unsuccesful attempt for this matter is as follows:
<ul class="nav nav-pills">
<li ng-class="{ active:tab.isSet(x.name) }" ng-repeat="x in states">
<a href ng-click="tab.setTab(x.name)">{{x.name}} <span class="badge">{{x.elector}}</span></a>
</li>
</ul>
And, inside my controller I have this piece of code for that matter:
$scope.tab = "Alabama";
$scope.isSet = function(checkTab) {
return $scope.tab === checkTab;
};
$scope.setTab = function(activeTab) {
$scope.tab = activeTab;
};
By the way, at first I tried to make the pills active by comparing their indices but that didn't help. It would be even better if you can help me with a way to do this using the indices. I apologize if there is already a posted solution to this but I couldn't find it.
Thanks in advance!
<ul class="nav nav-pills">
<li ng-class="{ 'active':tab.isSet(x.name) }" ng-repeat="x in states">
<a href ng-click="tab.setTab(x.name)">{{x.name}} <span class="badge">{{x.elector}}</span></a>
</li>
</ul>
Note the quotes around active
I found it, I should've deleted the "tab"s in "tab.isset(...)".
I got some problem on AngularJS.
my controller, mainCtrl, has this variables :
this.colors = {Sam:blue,Jane:red,Tom:pink};
this.arr = [{person:'Sam',story:'some story'},{name:'Tom',story:'some story2'}]
And I got this code :
<div ng-controller="mainCtrl as vm">
<ul ng-repeat="obj in arr">
<li ng-style={color:vm.color[obj.person]}>{{obj.story}}</li>
</ul>
</div>
I want that the li will be colored such as the color of the person at colors dictionary . how can I handle that? I got undefined every time, but when I do it explictly its work , for Example :
<li ng-style={color:vm.color['Sam']}>{{obj.story}}</li>
You are using the controllerAs-Syntax, so you must use vm.arr in your ng-repeat. And furthermore you should use the ng-repeat on the list item:
<ul>
<li ng-repeat="obj in vm.arr" ng-style="{color:vm.color[obj.person]}">{{obj.story}}</li>
</ul>
It should look like this.
<div ng-controller="mainCtrl as vm">
<ul>
<li ng-repeat="obj in vm.arr track by $index"
ng-style="{'color':vm.colors[obj.person]}"
ng-bind="obj.story">
</li>
</ul>
</div>
Remember to use your alias vm (controllerAs)
Usetrack by with ng-repeat for better performance.
I think that ng-repeat should have been placed in li
Her's a working jsfiddle http://jsfiddle.net/irhabi/nh4ddemr/
What is the correct syntax to switch from my simple ng-show to a filter in my ng-repeat? (item in list | filter:{item.value == 'abc'} or so)
<ol ng-repeat="item in list">
<li ng-show="item.value == 'abc'">test</li>
</ol>
Do not use ng-repeat inside <ol> tag.
This will repeat <ol> tag each time with single <li>.
Use ng-repeat in <li> tag to repeat <li> tag inside <ol> tag and use filter with ng-repeat.
use like this :
<ol>
<li ng-repeat="item in list | filter: { value : 'abc' }">test</li>
</ol>
working plunkr
<ol ng-repeat="item in list | filter:{value: 'abc'}">
<li>test</li>
</ol>
Plunker: https://plnkr.co/edit/uw0LNygWbj4Njhp1n7PN?p=preview
Try this
<ol ng-repeat="item in list | filter: {value: 'abc'}">
<li>test</li>
</ol>
Angular Filter doc
You can use nf-repeat Filter
<ol ng-repeat="item in list | filter : {value : 'abc'}">
<li>test</li>
</ol>
read AngularJS API Document
I am trying to iterate over a JSON object userTypes.
For the below code:
In the 1st ng-repeat:
{{user.type}} outputs 'Parent'(as expected),
{{user.options}} outputs '[{"option1":"11QWERT","option2":"22QWERT"}]'(as expected).
But in the 2nd ng-repeat, I am not able to iterate through the user.options and output each of the {{options}}
What should be changed to get the option1 and option2 as the outputs in 2nd ng-repeat ?
JS snippet
var userTypes = [{
"type": 'Parent',
"options": [{
"option1": "11QWERT",
"option2": "22QWERT"
}]
}]
HTML snippet
<li ng-repeat="user in userTypes">
<p>{{user.type}}</p>
<p>{{user.options}}</p>
<li ng-repeat="option in user.options">
<p>
{{option}}
</p>
</li>
</li>
Replace your child <li> with <ul> and then you can iterate user.options like so:
<li ng-repeat="user in userTypes">
<p>{{user.type}}</p>
<ul ng-repeat="(key, value) in user.options[0]">
<p>{{key}}: {{value}}</p>
</ul>
</li>
Or if your options may include more then one object:
<li ng-repeat="user in userTypes">
<p>{{user.type}}</p>
<ul ng-repeat="option in user.options">
<li ng-repeat="(key, value) in option">{{key}}: {{value}}</li>
</ul>
</li>
If you don't need object keys:
<ul ng-repeat="option in user.options">
<li ng-repeat="item in option">{{item}}</li>
</ul>
Fiddle
Extended explanation:
In your example you have <li> tag inside another <li>:
<li ng-repeat="user in userTypes">
<li ng-repeat="option in user.options">
</li>
</li>
Since it is not a valid HTML browser will interprets this markup to following:
<li ng-repeat="user in userTypes">
</li>
<li ng-repeat="option in user.options">
</li>
Since ng-repeat creates new scope for each iteration you can't access user variable in second ng-repeat and iterator wouldn't run.
For this exact JSON input it should be like this:
<li ng-repeat="option in user.options">
<p>
{{option.option1}}
{{option.option2}}
</p>
</li>
However as you said you want non fixed number of options, update your JSON to be like this:
"options":["11QWERT","22QWERT"]
And then your code should work as you wanted it.
You can add each new element to list with simple coma before it.
Since user.options is an array you should loop it again. By doing that you will get an object, with that object you can access your options1 and option2 easily.
please refer working plunker:
http://embed.plnkr.co/5c3i5fY50jLP0fFgxkUX/preview
see through the code if you have any doubt.
Hope this helps
A little aside, but just found out you can render a valid list HTML using ng-repeat-start/end in combination with ng-if="false" for the given array of arrays to flatten them:
<ul>
<script ng-repeat-start="user in userTypes" ng-if="false"></script>
<li ng-repeat="item in user.options">{{item}}</li>
<script ng-repeat-end="" ng-if="false"></script>
</ul>
Just access the propertie of the option object in the second ng-repeat. Like option.option1
You should probably make your user.options an object and not an array containing a single object.
Note the difference between these:
[{"option1":"11QWERT","option2":"22QWERT"}]
{"option1":"11QWERT","option2":"22QWERT"}
You can then iterate the options with an ng-repeat like discussed here:
<li ng-repeat="(key, value) in user.options">
<p>{{ key }}: {{ value }}</p>
</li>