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scttcper / ngx-chartjs

Functional Chart.js wrapper for Angular
https://ngx-chartjs.vercel.app
MIT License
56 stars 12 forks source link

Dynamic data not updating #70

Closed Ross-Rawlins closed 4 years ago

Ross-Rawlins commented 5 years ago

I have a dynamic data set but no matter what I do the graph doesnt redraw it. It works fine when I update the labels but how can I set the data for individual data sets in the data sets array.

this.data.datasets[0].data = tempArray I use that for the data. this.data = { ...this.data, labels: this.dateArray, }; and this for the labels

scttcper commented 5 years ago

Change detection doesn’t fire when you update properties of an object. Only when you replace the object with another object

Ross-Rawlins commented 5 years ago

I tried that aswell, using a behavour subject and the async pipe but nothing happens. Do oyu have a short hand to combine the new data sets into the exisitng object?

scttcper commented 5 years ago

not really. i tend to do whats in the dynamic doughnut example you can see in the library demo.

https://github.com/TypeCtrl/ngx-chartjs/blob/master/src/app/dynamic-doughnut-example/dynamic-doughnut-example.component.ts

Ross-Rawlins commented 5 years ago

so it has to be a whole new object and subjects with the async pipe wont trigger it either. Just want to confirm

On Wed, 28 Nov 2018 at 19:31, Scott Cooper notifications@github.com wrote:

not really. i tend to do whats in the dynamic doughnut example you can see in the library demo.

https://github.com/TypeCtrl/ngx-chartjs/blob/master/src/app/dynamic-doughnut-example/dynamic-doughnut-example.component.ts

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