I have the following markup:
<div class="liveResults">
<div><img ng-show="home!==undefined" ng-src="{{homeImg}}"> </div>
<div>0:0</div>
<div><img ng-show="guest!==undefined" ng-src="{{guestImg}}"> </div>
</div>
Inside my controller I fill the data the following way:
$scope.init=function() {
$.getJSON("http://www.example.com/somedata.json", function(result){
$scope.home=result.home;
$scope.guest=result.guest;
$scope.homeImg=$scope.BigImage($scope.home);
$scope.guestImg=$scope.BigImage($scope.guest);
$scope.$apply();
return;
}
}
That function is run by ng-init="init()"
now the ng-src is filled correctly, but ng-show does not work as expected (the images are still hidden) I can see using the browsers devtools, that the images are there, but with a width and height of "0".
When I start the function a second time by assigning it to an ng-click-event, the images are shown correctly.
My guess would be that the combination of "ng-init" and "$scope.apply" causes the problem.
The ng-src directive already have an implicit ng-show in it, so as the comments in you question illustrate this should work for you already:
<div class="liveResults">
<div><img ng-src="{{homeImg}}"> </div>
<div>0:0</div>
<div><img ng-src="{{guestImg}}"> </div>
</div>
Related
I'm having a bit of trouble working out why my images aren't rendering properly inside of an ng-repeat with an ng-init, ng-mousover and ng-mouseout.
<div ng-repeat="item in product.items">
<div ng-init="imgsrc='{{item.image01}}'"
ng-mouseover="imgsrc='{{item.image02}}'"
ng-mouseout="imgsrc='{{item.image01}}'">
<img ng-src="{{imgsrc}}" />
</div>
</div>
The correct paths are rendering inside of ng-init, ng-mouseover and ng-mouseout, but the <img> tag is only updating with {{item.image01}} and {{item.image02}} instead of the actual image paths.
What am I missing here?
remove the braces, for assigning values to variables you don't need them inside ng-init.
<div ng-repeat="item in product.items">
<div ng-init="imgsrc=item.image01"
ng-mouseover="imgsrc=item.image02"
ng-mouseout="imgsrc=item.image01">
<img ng-src="{{imgsrc}}" />
</div>
</div>
It's fine to assign a value with ng-init, but ng-moseouver and ng-mouseout don't work the same.
Try to create a function and pass it to them:
ng-mouseover="handleMouseover()"
ng-mouseout="handleMouseout()"
Then update the value of your variable inside of the methods accordingly.
I have a directive template with the following code
<div class="colorpicker">
<div>Chosen color</div>
<div class="color_swatch" style="background-color: {{ngModel}}"> </div>
<div class="clearfix"></div>
<div>Standard colors</div>
<div class="color_squares">
<div ng-repeat="color in colorList">{{color.trim() == ngModel.trim()}} //does not update
<div class="color_swatch" style="background-color: {{ color }};"></div>
</div>
</div>
<div class="clearfix"></div>
In the directive, I update the ngmodel using the below code to the color that was clicked - the div next to "chosen color" is updated with the selected color.
But, the expression "{{color.trim() == ngModel.trim()}}" always amounts to false.
{{color.trim() == ngModel.trim()}}
I have debugged the code and the values are exactly the same.
What I am missing?
This is probably because your variable is precisely named 'ngModel' see that article for more explanation : http://zcourts.com/2013/05/31/angularjs-if-you-dont-have-a-dot-youre-doing-it-wrong/
To resume this article : never use raw fields use always a dot. So in your scope change
$scope.ngModel
By
$scope.data.ngModel
And in your html change ngModel by data.ngModel.
When using dot you may have some undefined error, this is because you have to initialize the object :
$scope.data={};
Of course you can jsut rename your variable, but you may still have a problem with others directives.
I solved this by removing curly braces around color and using ng-style
<div class="color_swatch" id="colorpicker_selected_color" ng-style="{'background-color': selectedColor}" > </div>
I'm working on a project where the client has supplied a pile of html where I need to plugin the data from our database and have hit a problem that I'm finding difficult to solve....
So first problem is with routing
<div ng-repeat="class in vm.classes">
<div class="class-overview">
<a href="#">
<span class="class-title">{{class.description}}</span>
... more stuff here
</a>
</div>
<div class="class-information collapse">
<div class="full-width">
{{class.longDescription}}
</div>
</div>
</div>
he has supplied some javascript to handle the click on class-overview
$('.class-overview a').on('click',function(e) {
e.preventDefault();
});
$('.class-overview').on('click',function() {
$('.class-overview.active').removeClass('active').next('.class-information').collapse('hide');
$(this).addClass('active').next('.class-information').collapse('show');//.css('top',offset).collapse('show');
});
and i have a line like this in my state provider
// default route
$urlrouterProvider.otherwise("/")
So the problem is that the ui-router handles the click and sends me back to the home page.
The ideal solution is to leave as much of his markup intact, so can anyone tell me how I stop ui-router handling the click?
or failing that, how I might use ng-click and ng-show to get the same effect, i.e. hiding and showing the class-information div...
If I understand well your question, you want to display the .class-information div when you click on the .class-overview element.
That can be done by using a variable in a ng-show like this:
<div ng-repeat="class in vm.classes">
<div class="class-overview">
<a href="#" ng-click="display = !display">
<span class="class-title">{{class.description}}</span>
... more stuff here
</a>
</div>
<div class="class-information" ng-show="display">
<div class="full-width">
{{class.longDescription}}
</div>
</div>
</div>
The display variable will be falsy when you land on the page, therefore the ng-click will be executed, this variable will be set to true.
I see that you are using a collapse class to hide the content if it is collapsed. Then you could use angular ng-class to put the collapse class when the display variable is false. Your div.class-information would look like this:
<div class="class-information" ng-class="{collapse: !display}">
<div class="full-width">
{{class.longDescription}}
</div>
</div>
I was wondering if there were no compatibility issues when ng-switch-when and ng-class are using on the same element like in this sample.
I'm trying to dynamically change the class of this four elements but for some reasons this isn't working on all of them, just on the one who's currently displayed.
Does anyone know what's going on here?
<div>
<div ng-switch="sw" ng-init="sw=1">
<div ng-switch-when="1" ng-class="oneClassOrAnother()"></div>
<div ng-switch-when="2" ng-class="oneClassOrAnother()"></div>
<div ng-switch-when="3" ng-class="oneClassOrAnother()"></div>
<div ng-switch-when="4" ng-class="oneClassOrAnother()"></div>
</div>
<div>
<button ng-click="goTo(1)">1</button>
<button ng-click="goTo(2)">2</button>
<button ng-click="goTo(3)">3</button>
<button ng-click="goTo(4)">4</button>
</div>
</div>
Switch between divs.
$scope.goTo = function(x) {
$scope.sw = x;
}
Return one class or the other one.
$scope.oneClassOrAnother= function() {
if (...) return "class1";
else return "class2";
}
Many thanks.
It doesn't look like you're using the ng-class syntax correctly. Try something like this:
<div ng-class="{class1: oneClassOrAnother()}" ng-switch-when="1">1</div>
Where oneClassOrAnother() returns either true or false and "class1" is the name of the class.
Here's a working example of using ng-class and ng-switch-when together: http://plnkr.co/edit/n86SKEktRcPnBy05o8eZ?p=preview
Angular ngClass docs: https://docs.angularjs.org/api/ng/directive/ngClass
I think its all fine with your code, look at this plunk, I reproduced it and its working. Compare this to your code, maybe you have forgotten about controller?
http://plnkr.co/edit/Lz7L3S?p=preview
Only difference i guess is the fact, that I initiated sw from controller, not from view.
<div ng-switch on="sw">
I am using nodejs + Angular and html as a froentend
Here is my HTML Code
<div id="container" ng-app='two_way' ng-controller='two_way_control'>
<div class="row" ng-repeat="data in profile_pictures">
<div class=".col-sm-6 .col-md-5 .col-lg-6" style="background-color:#eee;height:150px;width:500px;margin-left:240px;margin-top:20px;">
<h4 style="padding:10px;">User Say's</h4><hr>
<img src="{{data.profile_picture}}" class="img-circle" style="width:100px;height:100px;margin-left:-140px;margin-top:-130px;">
</div>
</div>
</div>
and my angular code is here
app.controller('two_way_control',function($scope,$http,$interval){
load_pictures();
$interval(function(){
load_pictures();
},300);
function load_pictures(){
$http.get('http://localhost:3000/load').success(function(data){
$scope.profile_pictures=data;
});
};
});
and my server code is
app.get('/load',function(req,res){
connection.query("SELECT * from user_info",function(err,rows){
if(err)
{
console.log("Problem with MySQL"+err);
}
else
{
res.end(JSON.stringify(rows));
}
});
});
Which is working fine..
When i entered a new record in **user_info*. it will display new record to me.
Is this right way to do two way data binding or i am missing something
Please help.
Thanks
It looks as if you're doing one way binding because your angular code is never modifying the profiles pictures in the table (meaning you ain't got no form fields, your page is read only). But AFAIK you're doing everything right, as soon as you add editing capabilities to your angular page you would be doing two way binding all the way
YES! Angular '2-way bind' is between scope.variable and VIEW (ng-model in input elements).
In this case, the SRC property of IMG element need to be setd with ng-src!
Because IMG is a html element that load before angular principal scripts.
<div id="container" ng-app='two_way' ng-controller='two_way_control'>
<div class="row" ng-repeat="data in profile_pictures">
<div class=".col-sm-6 .col-md-5 .col-lg-6" style="background-color:#eee;height:150px;width:500px;margin-left:240px;margin-top:20px;">
<h4 style="padding:10px;">User Say's</h4><hr>
<img ng-src="{{data.profile_picture}}" class="img-circle" style="width:100px;height:100px;margin-left:-140px;margin-top:-130px;">
</div>
</div>
</div>