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Charts - Bullets

Bullet charts are useful when you need to compare a single measure to a target value. A bullet bar indicates the measure and a vertical line indicates the target value. The bullet also includes a zero level line that indicates zero on the scale.

Backend API
<div class="long-title"><h3>Daily temperature</h3></div> <div id="chart-demo"> <table class="demo-table"> <tr> <th> </th> <th>June</th> <th>July</th> <th>August</th> </tr> <tr> <th>First week</th> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(23) .Target(20) .Color("#ebdd8f") ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(27) .Target(24) ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(20) .Target(26) .Color("#e55253") ) </td> </tr> <tr> <th>Second week</th> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(24) .Target(22) .Color("#ebdd8f") ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(28) .Target(24) ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(30) .Target(24) .Color("#e55253") ) </td> </tr> <tr> <th>Third week</th> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(35) .Target(24) .Color("#ebdd8f") ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(24) .Target(26) ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(28) .Target(22) .Color("#e55253") ) </td> </tr> <tr> <th>Fourth week</th> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(29) .Target(25) .Color("#ebdd8f") ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(24) .Target(27) ) </td> <td> @(Html.DevExtreme().Bullet() .StartScaleValue(0) .EndScaleValue(35) .Tooltip(t => t.CustomizeTooltip("customizeTooltip")) .ElementAttr("class", "bullet") .Value(21) .Target(21) .Color("#e55253") ) </td> </tr> </table> </div> <script> function customizeTooltip(arg) { return { text: 'Current t&#176: ' + arg.value + '&#176C<br>' + 'Average t&#176: ' + arg.target + '&#176C' }; } </script>
using DevExtreme.AspNet.Data; using DevExtreme.AspNet.Mvc; using DevExtreme.NETCore.Demos.Models; using DevExtreme.NETCore.Demos.Models.SampleData; using Microsoft.AspNetCore.Mvc; using System; using System.Collections.Generic; using System.Linq; namespace DevExtreme.NETCore.Demos.Controllers { public class ChartsController : Controller { public ActionResult SimpleBullets() { return View(); } } }
#chart-demo { height: 440px; width: 100%; } .demo-table { margin-top: 80px; width: 100%; border: 1px solid #c2c2c2; border-collapse: collapse; } .demo-table th, .demo-table td { text-align: center; font-weight: 400; width: 200px; padding: 25px 10px 5px 10px; border: 1px solid #e5e5e5; } .demo-table th { padding: 25px 15px 20px 15px; border: 1px solid #c2c2c2; } .demo-table tr:nth-child(2) td { border-top: 1px solid #c2c2c2; } .demo-table td:first-of-type { border-left: 1px solid #c2c2c2; } .demo-table .bullet { width: 200px; height: 30px; } .long-title h3 { font-family: 'Segoe UI Light', 'Helvetica Neue Light', 'Segoe UI', 'Helvetica Neue', 'Trebuchet MS', Verdana; font-weight: 200; font-size: 28px; text-align: center; margin-bottom: 20px; }

Configure the Bullet Bar

Specify the value property to set the length of the bullet bar. The value should be between the startScaleValue and endScaleValue. If you do not specify the scale range, the startScaleValue is 0 and the endScaleValue is calculated automatically based on measure and target values.

When you arrange several bullets in a column, set the same scale range for them so that their bullet bars can be compared visually.

To change the bar color, use the color property.

Configure the Target and Zero Level Lines

Set the target property to specify the target value. You can also use the targetColor and targetWidth properties to customize the target line appearance.

The zero level line indicates zero and has the same color as the target line. If you want to hide the zero level line, you can disable the showZeroLevel property.

Configure the Tooltip

A tooltip contains information about the measure and target values. To configure the tooltip, use the tooltip object. In this demo, the customizeTooltip function within this object customizes the tooltip content.

NOTE

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