Microsoft Dot Net Master: AngularJS

Monday, March 9, 2015

AngularJS - HTML DOM

The following directives are used to bind application data to the attributes of HTML DOM elements:

S.No.	Name	Description
1	ng-disabled	Disables a given control.
2	ng-show	Shows a given control.
3	ng-hide	Hides a given control.
4	ng-click	Represents a AngularJS click event.

ng-disabled Directive

Add ng-disabled attribute to an HTML button and pass it a model. Bind the model to a checkbox and see the variation.

<input type="checkbox" ng-model="enableDisableButton">Disable Button
<button ng-disabled="enableDisableButton">Click Me!</button>

ng-show Directive

Add ng-show attribute to an HTML button and pass it a model. Bind the model to a checkbox and see the variation.

<input type="checkbox" ng-model="showHide1">Show Button
<button ng-show="showHide1">Click Me!</button>

ng-hide Directive

Add ng-hide attribute to an HTML button and pass it a model. Bind the model to a checkbox and see the variation.

<input type="checkbox" ng-model="showHide2">Hide Button
<button ng-hide="showHide2">Click Me!</button>

ng-click Directive

Add ng-click attribute to an HTML button and update a model. Bind the model to HTML and see the variation.

<p>Total click: {{ clickCounter }}</p></td>
<button ng-click="clickCounter = clickCounter + 1">Click Me!</button>

Example

The following example shows use of all the above mentioned directives.

testAngularJS.htm

<html>
<head>
<title>AngularJS HTML DOM</title>
</head>
<body>
<h2>AngularJS Sample Application</h2>
<div ng-app="">
<table border="0">
<tr>
   <td><input type="checkbox" ng-model="enableDisableButton">Disable Button</td>
   <td><button ng-disabled="enableDisableButton">Click Me!</button></td>
</tr>
<tr>
   <td><input type="checkbox" ng-model="showHide1">Show Button</td>
   <td><button ng-show="showHide1">Click Me!</button></td>
</tr>
<tr>
   <td><input type="checkbox" ng-model="showHide2">Hide Button</td>
   <td><button ng-hide="showHide2">Click Me!</button></td>
</tr>
<tr>
   <td><p>Total click: {{ clickCounter }}</p></td>
   <td><button ng-click="clickCounter = clickCounter + 1">Click Me!</button></td>
</tr>
</table>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js"></script>
</body>
</html>

Output

Open the file testAngularJS.htm in a web browser and see the result.