I am building an angular 4 App that needs a graph.
For graphs I am using Plotly.js
, this works as it should, except if I use ngIf
.
So what I want to do: I have a div in which the graph is initialized. This works the first time. I also have some filters that work just fine. However I made a button to switch the view, instead of showing a graph I want to show a table with the values of the graph. When I switch the view back to graph, then I get the error that plotly cannot find the div.
So here are parts of my code:
Parts of my component:
public graph:boolean;
public draw():void {
/*code to get data to plot*/
Plotly.newPlot('graph', this.drawing, layout, options);
}
switchView(){
this.graph = !this.graph;
if(this.graph){
this.draw();
} else {
/*tableview*/
}
}
Parts of my HTML
<div *ngIf="graph">
<div id="graph" class="graph"></div>
</div>
<div *ngIf="!graph">
<!--Table -->
</div>
<button class="btn btn-default btn-sm center-block btn-file" (click)="switchView()">
<i class="fa fa-eye"></i>
Switch View
</button>
import { ChangeDetectorRef } from '@angular/core';
constructor(private cdRef:ChangeDetectorRef){}
switchView(){
this.graph = !this.graph;
this.cdRef.detectChanges(); // <<< ensure the bindings are updated
if(this.graph){
this.draw();
} else {
/*tableview*/
}
}