How to pass template variable ref to other component in angular 6

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I am trying to pass template variable to other component included in current component but getting undefined error. Not sure what wrong I'm doing. Below is the component html and ts file code.

JavaScript

<div *ngIf=dataLoaded>
    <div #topDiv id="topDiv"></div>
</div> 
<scroll-content [targetElmRef]="target"></scroll-content>

JavaScript

@Input('targetElmRef') targetElmRef: any;

What I have tried:

above is the code snippet

<pre lang="Javascript">
<div *ngIf=dataLoaded>
    <div #topDiv id="topDiv"></div>
</div> 
<scroll-content [targetElmRef]="target"></scroll-content>

JavaScript

@Input('targetElmRef') targetElmRef: any;

Posted 5-Mar-19 4:01am

User 4180254

Updated 5-Mar-19 20:48pm

Wastedtalent

v2

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Wastedtalent · Accepted Answer · 2019-03-05T04:30:00

You would really need to post both the parent and the component code to make it clear what you're doing, but something like:

Parent component:

JavaScript

<div *ngIf=dataLoaded>
    <div #topDiv id="topDiv"></div>
</div> 
<scroll-content [targetElmRef]="target"></scroll-content>

With the parent component typescript:

get target() : any {
 return targetObject.
}

And on the child component:

@Input targetElmRef: any;

Should work if you return whatever you;re aiming to bind the child component to.

Make sure that target is defined, and you should probably define the types rather than use 'any' as it'll make it more readable.