What is the best way to refresh the parent component from an action triggered by the child component?

Could you please take a look at the link I shared? I am trying to implement a feature where the table gets refreshed whenever an item is added or removed via the API.

In this case, the button for adding data to the table is in a child element, while the table displaying the data is in the parent component. I'm unsure how to trigger a click on the button in the child element to make the parent component reload/refresh.

Here is the link (please note that to add an item, you must first tick the radio button in the UI).

javascriptvue.jsvue-componentrefresh

Answer №1

If you want to notify the parent element, you can utilize $emit.

After confirmation, simply call the $emit method:

this.$emit('weAreSure')

In the parent component's HTML, include:

<HelloWorld msg="Hello Vue in CodeSandbox!" @weAreSure="handleweAreSure"/>

The handleweAreSure function is a Vue method that allows you to refresh your data or pass additional parameters.

You can find an example at https://codesandbox.io/s/ecstatic-beaver-bgm1b

To learn more about emitting events, visit https://v2.vuejs.org/v2/guide/components-custom-events.html#Event-Names

If your application involves frequent use of $emits, consider exploring Vuex at https://vuex.vuejs.org/guide/.

Answer №2

Utilizing Vue's reactivity feature eliminates the need for manually reloading your table. When you make changes to the model, the view automatically updates.

Vue is known for its unobtrusive reactivity system that allows models to be plain JavaScript objects. Any modifications to these objects will reflect in the view, simplifying state management while requiring an understanding of its functionality to avoid pitfalls.

Learn more about Reactivity in Vue

For instance, if you wish for the table to update after deleting a trend, ensure that you remove the trend from the model instead of just sending an API request.

To achieve this, consider adding 

this.toptrackTrends = this.toptrackTrends.filter(x => x.ID !== deleteid);
at the end of your DeleteTrend method. This code snippet filters out any trends with an ID matching the deleted one.

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