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Colorization
Documentation
The TreeMap UI component provides a flexible system of tile colorization. You can assign colors to tiles depending on their values or the group they belong to. If colors are specified in your data source, you can use them as well. Finally, the TreeMap includes nine built-in palettes that ensure the superb appearance.
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@(Html.DevExtreme().TreeMap()
.ID("treemap")
.DataSource(new[] {
new { name = "Monitors", items = new[] {
new { name = "DesktopLCD 19", salesAmount = 23420 },
new { name = "DesktopLCD 21", salesAmount = 113900 },
new { name = "DesktopLED 19", salesAmount = 49170 },
new { name = "DesktopLED 21", salesAmount = 81200 }
}
},
new { name = "Projectors", items = new[] {
new { name = "Projector Plus", salesAmount = 99000 },
new { name = "Projector PlusHD", salesAmount = 152250 }
}
},
new { name = "Televisions", items = new[] {
new { name = "SuperLCD 55", salesAmount = 147150 },
new { name = "SuperLCD 42", salesAmount = 103200 },
new { name = "SuperLCD 70", salesAmount = 56000 },
new { name = "SuperLED 42", salesAmount = 159500 },
new { name = "SuperLED 50", salesAmount = 233600 },
new { name = "SuperPlasma 50", salesAmount = 184800 },
new { name = "SuperPlasma 65", salesAmount = 178500 }
}
},
new { name = "Video Players", items = new[] {
new { name = "HD Video Player", salesAmount = 63690 },
new { name = "SuperHD Video Player", salesAmount = 74000 }
}
}
})
.Title("Sales Amount by Product")
.ValueField("salesAmount")
.Tooltip(t => t
.Enabled(true)
.Format(Format.Currency)
.CustomizeTooltip(@<text>
function (arg) {
var data = arg.node.data;
return {
text: arg.node.isLeaf() ? ("<span class='product'>" + data.name + "</span><br />Sales Amount: " + arg.valueText) : null
};
}
</text>))
.Colorizer(c => c
.Type(TreeMapColorizerType.Range)
.Range(new double[] { 0, 50000, 100000, 150000, 200000, 250000 })
.Palette(new[] { "#fbd600", "#78299a" })
.ColorCodeField("salesAmount")
.ColorizeGroups(false))
)
<div class="options">
<div class="caption">Options</div>
<div class="option">
<span>Colorization Type</span>
@(Html.DevExtreme().SelectBox()
.DataSource(new object[] {
new { name = "Discrete", options = new[] {
new { type = "discrete", palette = "harmony light", colorizeGroups = false }
}
},
new { name = "Grouped", options = new[] {
new { type = "discrete", palette = "harmony light", colorizeGroups = true }
}
},
new { name = "Range", options = new[] {
new { type = "range", palette = new[] { "#fbd600", "#78299a" }, colorizeGroups = false, range = new[] { 0, 50000, 100000, 150000, 200000, 250000 }, colorCodeField = "salesAmount" }
}
},
new { name = "Gradient", options = new[] {
new { type = "gradient", palette = new[] { "#fbd600", "#78299a" }, colorizeGroups = false, range = new[] { 10000, 250000 }, colorCodeField = "salesAmount" }
}
}
})
.Width(200)
.DisplayExpr("name")
.ValueExpr("name")
.Value("Range")
.OnValueChanged("selectBox_valueChanged")
.ElementAttr("class", "selectbox")
)
</div>
</div>
<script>
function selectBox_valueChanged(data) {
$("#treemap")
.dxTreeMap("instance")
.option("colorizer", data.component.option("selectedItem").options[0]);
}
</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 Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
namespace DevExtreme.NETCore.Demos.Controllers {
public class ChartsController : Controller {
public ActionResult Colorization() {
return View();
}
}
}
.product {
font-weight: 500;
}
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
.option {
margin-top: 10px;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option > span {
margin-right: 10px;
}
.option > .dx-widget {
display: inline-block;
vertical-align: middle;
}