I'm trying to trigger on-change on a readonly input. I can't find an alternative way to do it.
<!DOCTYPE html>
<html ng-app="angularjs-starter">
<head lang="en">
<meta charset="utf-8">
<title>Custom Plunker</title>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.0.5/angular.min.js"></script>
<link rel="stylesheet" href="style.css">
<script>
document.write('<base href="' + document.location + '" />');
</script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<form>
<input type="text" ng-change="changeRO()" ng-model="input" readonly placeholder="I have readonly attribute." />
<input type="text" ng-change="change()" ng-model="input" placeholder="Write" />
<p ng-repeat="text in texts">{{text}}</p>
</form>
</body>
If your input is readonly than that means the user cannot directly change its value. And if user cannot do that than the onchange event will never be fired. Same stands for cases where you're changing the values dynamically, - the onchange event won't be fired.
In your case, since your read/write inputs are connected to 'input' model (through ng-model), you can trigger your 'changeRO' callback from $watch function in your controller:
$scope.$watch('input', function(){
$scope.changeRO();
});
Related
I am in process of learning so kindly help me to do how the retrieval of table from mysql in ibm mobile first by just clicking an button from my html page. I have tried but not working help please
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>vikdemodb</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
<!--
<link rel="shortcut icon" href="images/favicon.png">
<link rel="apple-touch-icon" href="images/apple-touch-icon.png">
-->
<link rel="stylesheet" href="css/main.css">
<script>window.$ = window.jQuery = WLJQ;</script>
</head>
<body style="display: none;">
<!--application UI goes here-->
<div id="header">
<h1>database Demo</h1>
</div>
<div id="wrapper">
<input type="button" id="databasecon" value="click me to get data from db" /><br />
</div>
<script src="js/initOptions.js"></script>
<script src="js/main.js"></script>
<script src="js/messages.js"></script>
</body>
</html>
My main.js
function wlCommonInit(){
$('#databasecon').click(loadSQLRecords);
}
function loadSQLRecords(){
var invocationData = {
adapter : 'vikadap',
procedure : 'getstudinfo',
parameters : []
};
WL.Client.invokeProcedure(invocationData,{
onSuccess : loadSQLQuerySuccess,
onFailure : loadSQLQueryFailure
});
}
function loadSQLQuerySuccess(result){
window.alert("success");
console.log("Retrieve success" + result);
console.log(result.invocationResult.resultSet);
}
function loadSQLQueryFailure(result){
WL.Logger.error("Retrieve failure");
}
You have a button in your HTML:
<input type="button" id="databasecon" value="click me to get data from db" />
You handle this button in wlCommonInit():
$('#databasecon').click(loadSQLRecords);
In loadSQLRecords() you call an adapter procedure to retrieve data from the database. If this operation succeeds then it calls the loadSQLQuerySuccess callback function.
It is this function that you are supposed to handle the display of the response from the backend (your database). But what are you doing? You only print to the console the response. You do not handle at all, displaying it in the application - in the HTML.
So in your HTML, you need to prepare a place holder that you will append the result into. For example: <table id="mytable"></table>
Then you need to populate the table with the data...
So in loadSQLQuerySuccess, you could for example do the following... this is where you need to learn HTML and JavaScript to accomplish what YOU want it to look like:
function loadFeedsSuccess(result) {
if (result.invocationResult.resultSet.length > 0)
displayFeeds(result.invocationResult.resultSet);
else
loadFeedsFailure();
}
function loadFeedsFailure() {
alert ("failure");
}
function displayFeeds(result) {
for (var i = 0; i < result.length; i++) {
$("#mytable").append("<tr><td>" + result[i].firstName + "</td></tr>");
$("#mytable").append("<tr><td>" + result[i].lastName + "</td></tr>");
}
}
Note that you need to create your own code in the for loop to make it look like how you want it to look, and of course append your own properties from the database, instead of "firstName" and "lastName".
Can someone please tell what's wrong with this code?
Even when I change sessionStorage.setItem("item1"; document.test.value); to a fixed value like sessionStorage.setItem("item1"; "test"); it does nothing.
Is it a problem in the code or some browser setting?
The browser gives undefined for sessionstorage.
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">`
function Session()
{sessionStorage.setItem("item1"; document.test.value);}
function Show()
{alert("Value 1 is " + sessionStorage.getItem("item1"));
}
</script>
</head>
<body>
<input type="text" id="test">
<button type="button" onclick="Session()">invoer</input>
<button type="button" onclick="Show()">show</input>
</body>
</html>
You have a semicolon where it should be a comma on this line:
{sessionStorage.setItem("item1"; document.test.value);}
Should be:
{sessionStorage.setItem("item1", document.test.value);}
I am very much new to AngularJS. I want to update the .less files variable dynamically. But didn't get how to access this .less file using AngularJS.
My code:
style.less
#bg-color: #484848;
.header{
background: #bg-color;
}
I want to update #bg-color: #484848; present in the style.less file to some value input by user. How can I get this using AngularJS.
You should run Less in browser to do this. If you load less.js in your HTML, the global less object come available, so you can use less.modifyVars() and less.refreshStyles() inside your angularJS code:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Example - example-example78-production</title>
<link rel="stylesheet/less" type="text/css" href="color.less" />
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.0-beta.1/angular.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/less.js/2.3.1/less.min.js"></script>
</head>
<body ng-app="submitExample">
<script>
angular.module('submitExample', [])
.controller('ExampleController', ['$scope', function($scope) {
$scope.list = [];
$scope.text = 'orange';
$scope.submit = function() {
if ($scope.text) {
less.modifyVars({ color : $scope.text });
}
};
}]);
</script>
<h1>Colored text</h1>
<form ng-submit="submit()" ng-controller="ExampleController">
Enter text and hit enter:
<input type="text" ng-model="text" name="text" />
<input type="submit" id="submit" value="Submit" />
</form>
</body>
</html>
See: http://plnkr.co/5b1HTkneFXLMGVvXEG8j http://plnkr.co/edit/Z9tRY3Lol31PMnPUfxQi
I am having trouble getting a reference to the dijit form widget when the form contains a DateTextBox. The code snippet below demonstrates the problem. When executed, the alert box says "undefined". However, if I get rid of <input ... id="dateTextBox"... />, I am able to get a reference to the form widget.
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="utf-8">
<title></title>
<link rel="stylesheet" type="text/css" href="//ajax.googleapis.com/ajax/libs/dojo/1.9.1/dijit/themes/claro/claro.css" media="screen">
<!-- load dojo and provide config via data attribute -->
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/dojo/1.9.1/dojo/dojo.js"
data-dojo-config="async: true, parseOnLoad: true">
</script>
<script type="text/javascript">
require(["dijit/form/TextBox", "dijit/form/DateTextBox"]);
</script>
<script type="text/javascript">
require(["dojo/parser", "dijit/registry", "dijit/form/Form", "dojo/domReady!"],
function(parser, registry) {
parser.parse();
alert(registry.byId("frm_test"));
});
</script>
</head>
<body class="claro">
<div data-dojo-type="dijit/form/Form" id="frm_test" encType="multipart/form-data" action="" method="">
<input type="text" id="textBox" name="textBox" data-dojo-type="dijit/form/TextBox" />
<input type="text" id="dateTextBox" name="dateTextBox" data-dojo-type="dijit/form/DateTextBox" />
</div>
</body>
</html>
I'd recommend wrapping the registry.byId into a ready call.
Keep parse onLoad: true, remove
require(["dijit/form/TextBox", "dijit/form/DateTextBox"]);
as the parser will auto require (when dojo>= 1.8) and use the following:
<script type="text/javascript">
require(["dojo/ready", "dijit/registry", "dojo/domReady!"],
function(ready, registry) {
// by default the prioirty of this ready call will be after the
// ready call used to parse when parseOnLoad is true
ready(function() {
alert(registry.byId("frm_test"));
});
});
</script>
Note that waiting for dojo/domReady! to fire is often not sufficient
when working with widgets. Many widgets shouldn’t be initialized or
accessed until the following modules load and execute:
dojo/uacss
dijit/hccss
dojo/parser
Thus when working with widgets you should generally put your code
inside of a dojo/ready() callback
http://dojotoolkit.org/reference-guide/1.9/dojo/domReady.html
http://dojotoolkit.org/reference-guide/1.9/dojo/ready.html#dojo-ready
It's very strange, I call dijit.byId() in dojo.addOnLoad(function{...}), it return undefined. In order to check if the id exist, i call dojo.byId() at the same time, it return some object. So I guess the component is not a dijit component? this is the whole code: Please help me, thanks in advice!
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
<!-- Dojo/Diji definations -->
<link href='../dojoroot/dijit/themes/tundra/tundra.css' type='text/css' rel='stylesheet'/>
<link href='../dojoroot/dojo/resources/dojo.css' type='text/css' rel='stylesheet'/>
<script type="text/javascript" src="../dojoroot/dojo/dojo.js" djConfig="parseOnLoad: true"></script>
<!-- Main scripts -->
<script type="text/javascript">
dojo.addOnLoad(function()
{
// Include library
dojo.require("dijit.layout.BorderContainer");
dojo.require("dijit.layout.TabContainer");
dojo.require("dijit.layout.ContentPane");
// add the select child event to the tab panel
alert(dijit.byId("contentTabPanel")); // return no defined
alert(dojo.byId("contentTabPanel")); // return an object
});
</script>
</head>
<body class="tundra">
<div dojoType="dijit.layout.BorderContainer" style="width: 100%; height: 100%;">
<!-- Content Tab Panel -->
<div id="contentTabPanel" dojoType="dijit.layout.TabContainer" region="center">
<!-- Tab UserGroup -->
<div dojoType="dijit.layout.ContentPane" title="UserGroup">
</div>
</div>
</div>
</body>
</html>
OMFG!!!!! I know the reason!!!!! I cost 5 Hours just for this STUPID error:
I MUST write the
// Include library
dojo.require("dijit.layout.BorderContainer");
dojo.require("dijit.layout.TabContainer");
dojo.require("dijit.layout.ContentPane");
outside the dojo.addOnLoad(function() { !!!