how to aggregate in pie/donut chart?

[Nazareth]

Hey there, 

 

I am using Data query APIs to groupBy my data by priorities:

  this.piechartData = groupBy(chartData, [{field:"priority"}]);

Then I want to count the items per priority value to build the piechart. However, the aggregate="count" is not working for me. 

 

Is there

<kendo-chart>
                <kendo-chart-series>
                  <kendo-chart-series-item
                    type="donut"
                    *ngFor="let item of piechartData"
                    [data]="item.items"
                    [name]="item.value"
                    categoryField="priority"
                    aggregate="count"
                    field="taskName">
                  </kendo-chart-series-item>
                </kendo-chart-series>
                <kendo-chart-legend [visible]="false"></kendo-chart-legend>
            </kendo-chart>

a way around to do this?

I used this approach for barcharts and linecharts before and it worked.

 

Regards,

Nazareth

[Martin]

Hello, Nazareth,

Please check our Aggregate Pie Chart article which should guide you to the correct configuration. If it does not help you to resolve the problem, kindly provide a small runnable dojo example where I can observe the problem.

Regards,
Martin
Progress Telerik