Tag Archives: AngularJS

Drag and drop rows within ui grid in Angular js

Ui Grid is the popular grid system specially for Angular 1.x(Currently ui-grid doesn’t support angular 2 and above version). Ui-grid has no dependency rather than angular which makes it light weight. It has very rich feature set such as sorting, filtering, grouping and pagination and also has server side support for data-binding and pagination. Continue reading Drag and drop rows within ui grid in Angular js

AngularJs directive: Restrict user to enter value with only ‘N’ decimal places

Directive Name: aDecimals
How to Use: Add the attribute: n-decimals=”n” where n is the number like 2,3…
If you want to restrict user to 2 decimal points, write like this: evo-decimals=”2″

Source Code:

The following code will restrict user to enter numeric value with decimal upto 4 place.

Javascript code

var app = angular.module('plunker', []);
 
app.controller('MainCtrl', function($scope) {
 
});
 
  app.directive('nDecimals', [nDecimals]);
    function nDecimals() {
        return {
            restrict: 'A',
            link: function (scope, element, attr) {
                element.on('input', function (e) {
                  // Read the attribute to know the 'N' number places
                    var maxDecimal = Number(element.attr('n-Decimals'));
                    //Read the enetered value
                    var sal = element.val();
                    var parts;
                    if (sal.indexOf(".") !== -1) {
                        parts = sal.split(".");
                        if (parts[1].length > maxDecimal) {
                            element.val(sal.substr(0, sal.length - 1));
                        }
                    }
                });
                // destroy event.
                scope.$on('$destroy', function () {
                    element.off('input');
                });
            }
        };
    }

HTML code

 <input type="number" n-decimals="4" ng-model="salary"/>

In the above directive we are using the ‘input’ event which is very similar to the ‘onchange’ event. The ‘input event is fired synchronously when the value of an ‘input’ or ‘textarea’ element is changed while ‘onchange’ occurs when the element loses focus, after the content has been change.

AngularJS: How to filtering and order by in the Repeaters

In the previous post ‘starting with controller‘ we learnt how to create and use the controller and ng-repeat directive in the AngularJS template. In the post we will learn the filtering and order by functionality within the repeaters(using ng-repeat). In the below example user enter the search keyword(s) in the input element and see the immediately city list based on the search criteria. Continue reading AngularJS: How to filtering and order by in the Repeaters

AngularJS: Starting with controller – display the maths times table

In the previous post AngularJS Example 2 – Create and display the maths times tables using ng-repeat we learnt to use the basics and ng-repeat directive to display the repeating html template. And now we introduce the controller in AngularJS application. Simply controller is the one of the part of the MVC(Model – View – Controller) technique for the web development. Continue reading AngularJS: Starting with controller – display the maths times table