Sunday, March 2, 2014

Filtering concept in Angular JS

Angular js providing a very easy way to do filtering and data binding by using very less of code.

View

 
<div ng-repeat="datalist in datalists | filter:searchquery">
 <span>Name : {{ datalist.name }}</span>
 <span>Age : {{ datalist.age }}</span>
 <span>Age : {{ datalist.Designation }}</span>
</div>
 

Your filter text box

 

 <input type="text"  value="Search" ng-model="searchquery">
 
 

Note : We are assigning ng-model = "searchquery" to the filter text box .This is the only thing we have to do for filtering the data.

JSON

 
$scope.datalists = [
    { "name": "John","age":"16","Designation":"SW"},
    {"name": "Abraham","age":"21","Designation":"SW1"},
    {"name": "Norm","age":"19","Designation":"SW2"},
    {"name": "Leo","age":"17","Designation":"SW3"},
    {"name": "Christino","age":"21","Designation":"SW4"},
    {"name": "Prash","age":"31","Designation":"SW5"},
    {"name": "Saniya","age":"41","Designation":"SW6"},
 {"name": "Vinoj","age":"41","Designation":"SW6"}
    ]
 

Fiddle

Working Demo

Let us take another example .By using the same concept we can filter the data very easily without doing any additional code .Suppose you want to show only the data of people having age 21 ,you can do that filter concept very easily in the view .

Example of those have age 21

 
<div ng-repeat="datalist in datalists | filter:{age:'21'}">
 <span>Name : {{ datalist.name }}</span>
 <span>Age : {{ datalist.age }}</span>
 <span>Age : {{ datalist.Designation }}</span>
</div>
 

Example of those have age 41

 
<div ng-repeat="datalist in datalists | filter:{age:'41'}">
 <span>Name : {{ datalist.name }}</span>
 <span>Age : {{ datalist.age }}</span>
 <span>Age : {{ datalist.Designation }}</span>
</div>
 

If you are facing any issues with quotation ( '21') , you can try filter:{category:&quot;21&quot;}

Fiddle

Working Demo

Related Posts

1. Date filtering and formatting in Angular js.

2. Communicate with controllers in angular js

3. Rating Stars using angular js Directive concept

4. Angular routing

5. Loop concept in angular js


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