Use a setter for the ViewChild:
private contentPlaceholder: ElementRef;
@ViewChild('contentPlaceholder') set content(content: ElementRef) {
if(content) { // initially setter gets called with undefined
this.contentPlaceholder = content;
}
}
The setter is called with an element reference once *ngIf
becomes true
.
Note, for Angular 8 you have to make sure to set { static: false }
, which is a default setting in other Angular versions:
@ViewChild('contentPlaceholder', { static: false })
Note: if contentPlaceholder is a component you can change ElementRef to your component Class:
private contentPlaceholder: MyCustomComponent;
@ViewChild('contentPlaceholder') set content(content: MyCustomComponent) {
if(content) { // initially setter gets called with undefined
this.contentPlaceholder = content;
}
}
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