Can one AngularJS controller call another?
General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
manpreet 2 years ago
There are multiple ways how to communicate between controllers.
The best one is probably sharing a service:
function FirstController(someDataService)
{
// use the data service, bind to template...
// or call methods on someDataService to send a request to server
}
function SecondController(someDataService)
{
// has a reference to the same instance of the service
// so if the service updates state for example, this controller knows about it
}Another way is emitting an event on scope:
function FirstController($scope)
{
$scope.$on('someEvent', function(event, args) {});
// another controller or even directive
}
function SecondController($scope)
{
$scope.$emit('someEvent', args);
}In both cases, you can communicate with any directive as well.
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manpreet![Tuteehub forum best answer]()
Best Answer
2 years ago
Is it possible to have one controller use another?
For example:
This HTML document simply prints a message delivered by the
MessageCtrlcontroller in themessageCtrl.jsfile.The controller file contains the following code:
Which simply prints the current date;
If I were to add another controller,
DateCtrlwhich handed the date in a specific format back toMessageCtrl, how would one go about doing this? The DI framework seems to be concerned withXmlHttpRequestsand accessing services.