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Label Templates based on series fields from JSON

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Devendra
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Devendra asked on 29 Jul 2015, 07:13 AM

 Hello,

I have below stacked type chart where it display data from a service. I want to display the label value dynamically for each field in the series. Here i have Value and UnusedValue, how to display these values for their respective fileds "Used Capacity" and "Unused Capacity". The below code displays the same value for both fields because the label template doesn't have any condition.

function createchart(chartID, chartTitle) {
     $(chartID).kendoChart({
         dataSource: {
             transport: {
                 read: {
                     url: serviceurl,
                     dataType: "json"
                 }
             }
         },
         title: {
             text: "RAU"
         },
 
         legend: {
             position: "right"
         },
         seriesDefaults: {
             type: "column",
             stack: {
                 type: "100%"
             },
             labels: {
                 visible: true,
                 position: "bottom",
                 template: "#= dataItem.Value #%"
             }
         },
         series: [{
             name: "Used Capacity",
             field: "Value",
             CategoryField: "RAU"
         }, {
             name: "Unused Capacity",
             field: "UnusedValue",
             CategoryField: "RAU",
             color: "#FFFFFF"
         }],
         valueAxis: {
             line: {
                 visible: false
             },
             minorGridLines: {
                 visible: true
             },
             visible: false
         },
         categoryAxis: {
             categories: ["Reliability", "Availability", "Utilisation"],
             majorGridLines: {
                 visible: false
             }
         },
         tooltip: {
             visible: true,
             template: "#= series.name #: #= dataItem.Value #"
         }
     });
 }

Best Regards,

Devendra

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Plamen Lazarov
Telerik team
answered on 31 Jul 2015, 07:00 AM

Hello Devendra,

In order to achieve the expected you should use custom JavaScript logic in the seriesDefaults.labels.template function. Please find below a basic example which demonstrates this approach:
http://dojo.telerik.com/AzAji

Regards,
Plamen Lazarov
Telerik
 
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Plamen Lazarov
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