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AngularJS :   ng-repeat  how -to conditionally format display items

Posted on 2015-01-06
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Last Modified: 2015-01-06
Hi..
I'm using  JSON binding to the following -   a fact contains  a name    so   fact.name = 'ABC',  fact.name ='XYZ'

  <ion-list>
     <ion-item ng-repeat="fact in facts" item="fact" >

     if fact contains  ABC I want to show the item like this.

       use ABC class and show it in BOLD

    if fact contains   XYZ  I want to show the itme like this.

    use XYZ class and show in RED


        and so on



How do I conditionally show / format etc an item based on the value?
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Question by:JElster
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7 Comments
 
LVL 30

Expert Comment

by:Alexandre Simões
ID: 40533726
You can just create CSS classes that match those names and apply them with ng-class.
Can actually be even with the normal class like:
<ion-item ng-repeat="fact in facts" item="fact" class="{{fact.name}}">

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0
 
LVL 1

Author Comment

by:JElster
ID: 40533746
How do I check if fact.name = 'XYZ' to use a particular class, say class = "RED".

How do I structure the item

like this?

 <ion-item class="RED">

thanks
0
 
LVL 30

Expert Comment

by:Alexandre Simões
ID: 40533761
Can't you create a class called XYZ like:
.XYZ{
color: #f00;
}

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LVL 30

Expert Comment

by:Alexandre Simões
ID: 40533763
You can even prefix it to avoid conflicts:
<ion-item ng-repeat="fact in facts" item="fact" class="fact_{{fact.name}}">

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And create a class like:
.fact_XYZ{
color: #f00;
}

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0
 
LVL 1

Author Comment

by:JElster
ID: 40533778
How do I check if the fact.name is 'XYZ' ?   I can't name the class XYZ... it will not match the value in fact.name.

the class for XYZ maybe  Called 'Special_Class_For_XYZ'

thanks
0
 
LVL 30

Accepted Solution

by:
Alexandre Simões earned 2000 total points
ID: 40533809
That's my point.
To make it easier to maintain it should have the same name, otherwise you have to create a function in the controller that does the mapping:
$scope.getFactClass = function(fact){
    var name = fact.name;
    
    switch{
        case 'XYZ':
            return 'Special_Class_For_XYZ';
        case 'ABC':
            return 'SomeOtherClassForABC';
        default:
            return '';
        
    }
}

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and use it like:
<ion-item ng-repeat="fact in facts" item="fact" class="{{getFactClass(fact)}}">

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0
 
LVL 1

Author Closing Comment

by:JElster
ID: 40533835
thanks!!!
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