Working with data

20 Dec 20233 minutes to read

Bullet Chart can visualise data bound from local or remote data.

Local data

You can bind a simple JSON data to the chart using DataSource direct property of the bullet-chart. Now, map the fields in JSON to ValueField and TargetField properties. The DataSource property accepts a collection of values as input that helps to display measures, and compares them to a target bar. To display the actual and target bar, specify the property from the datasource into the ValueField and TargetField respectively.

CSHTML

<ejs-bulletchart id="bulletgraph" height="400" title="Profit in %" minimum="0" maximum="20" interval="5" categoryField="category" valueField="value" targetField="comparativeMeasureValue" dataSource="ViewBag.dataSource">
        <e-bullet-range-collection>
            <e-bullet-range end="5"></e-bullet-range>
            <e-bullet-range end="15"></e-bullet-range>
            <e-bullet-range end="20"></e-bullet-range>
        </e-bullet-range-collection>
</ejs-bulletchart>

Working-with-data.cs

public IActionResult Index()
        {
            List<DefaultBulletData> bulletData = new List<DefaultBulletData>
            {
                new DefaultBulletData { value = 5, comparativeMeasureValue = 7.5, category= "2001"},
                new DefaultBulletData { value = 7, comparativeMeasureValue = 5, category= "2002"},
                new DefaultBulletData { value = 10, comparativeMeasureValue = 6, category= "2003"},
                new DefaultBulletData { value = 5, comparativeMeasureValue = 8, category= "2004"},
                new DefaultBulletData { value = 12, comparativeMeasureValue = 5, category= "2005"},
                new DefaultBulletData { value = 8, comparativeMeasureValue = 6, category= "2006"}
            };
            ViewBag.dataSource = bulletData;
            return View();
        }
        public class DefaultBulletData
        {           
            public double value;
            public double comparativeMeasureValue;
            public string category;
        }