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Discover an effective method to `call a function` in a child component from a parent component in Angular. Understand how to utilize dialog close events to set your workflow efficiently! --- This video is based on the question https://stackoverflow.com/q/75343944/ asked by the user 'Test' ( https://stackoverflow.com/u/21001703/ ) and on the answer https://stackoverflow.com/a/75346275/ provided by the user 'Ryan Baker' ( https://stackoverflow.com/u/14297384/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Want to call function in child component from parent component Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Calling a Function in Child Component from Parent Component in Angular In the world of Angular development, components interact with one another in specific ways. A common scenario arises when you need to call a function from a child component in your parent component after performing some actions in the child. In this guide, we will address this issue by using a practical example involving modal dialogs. The Scenario Let’s set the stage with a situation involving two components: a parent component, Company, and a dialog component, UploadDocumentDialog. The user opens a modal to upload files, and upon a successful file upload, you need to trigger a function from the parent component. Here’s a brief breakdown of what we are attempting to achieve: The user opens the upload document dialog from the parent component. The user uploads a file, and on saving, an API is called. Upon receiving a successful response from the API, we want to call a function from the Company component within the UploadDocumentDialog. The Problem While it might seem simple to directly call a parent function from the child component, it’s generally considered bad practice in Angular. Instead, we should control the interaction through data exchange. Here’s how we can achieve this. The Solution To effectively manage communication between the two components, we will use dialogRef.afterClosed(). This mechanism allows you to subscribe to events when the dialog is closed and handle responses accordingly. Step-by-Step Approach Open the Dialog in the Parent Component: In your parent component (Company), you’ll initiate the dialog as shown below: [[See Video to Reveal this Text or Code Snippet]] Handle the Response in the Parent Component: Now, create a method to handle the response upon successful file upload and API call: [[See Video to Reveal this Text or Code Snippet]] Closing the Dialog with Response in Child Component: In your child component (UploadDocumentDialog), after the API call is successful, close the dialog with relevant data. Here's how to do it: [[See Video to Reveal this Text or Code Snippet]] Summary In conclusion, although directly calling a function in a parent component from a child component can seem tempting, it's much more effective to utilize a structured approach through dialog subscriptions. By utilizing dialogRef.afterClosed() and passing data back from the child component to the parent, you can maintain better separation of concerns while achieving the desired interactions. By following the steps outlined, you can streamline your Angular application’s component interactions and ensure a smooth workflow, allowing for cleaner and more maintainable code. Now, go ahead and implement this into your application to enhance the interaction between your Company and UploadDocumentDialog components!