I am working on a website that requires a settings dialog to be loaded in a designated area upon clicking a button. The settings dialog is a component that retrieves data from REST endpoints. I am hesitant to simply insert the component and hide it as I am mindful of resource conservation. Can anyone advise on the best Angular 2 approach for achieving this?
If you want to conditionally insert an element, you can utilize the ngIf directive in Angular. This will ensure that the element is only added to the DOM if the specified condition evaluates to true.
<div *ngIf="condition">
<!-- Content will be displayed in the DOM only when condition is true -->
</div>
By doing this, your data will not be loaded at runtime but rather when the component is inserted into the view, which occurs when the condition becomes true.
EDIT: Load content based on the value of shouldBeLoaded and then show/hide it based on shouldBeDisplayed; once shouldBeLoaded is set to true, its value should remain unchanged.
<component *ngIf="shouldBeLoaded" *ngShow="shouldBeDisplayed">
</component>
Here are two methods to achieve this:
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