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Data Grid
- Overview
-
Data Binding
-
Paging and Scrolling
-
Editing
-
Grouping
-
Filtering and Sorting
- Focused Row
-
Row Drag & Drop
-
Selection
-
Columns
- State Persistence
-
Appearance
-
Templates
-
Data Summaries
-
Master-Detail
-
Export to PDF
-
Export to Excel
-
Adaptability
- Keyboard Navigation
-
Pivot Grid
- Overview
-
Data Binding
-
Field Chooser
-
Features
-
Export to Excel
-
Tree List
- Overview
-
Data Binding
- Sorting
- Paging
-
Editing
- Node Drag & Drop
- Focused Row
-
Selection
-
Filtering
-
Column Customization
- State Persistence
- Adaptability
- Keyboard Navigation
-
Scheduler
- Overview
-
Data Binding
-
Views
-
Features
- Virtual Scrolling
-
Grouping
-
Customization
- Adaptability
-
Html Editor
-
Chat
-
Diagram
- Overview
-
Data Binding
-
Featured Shapes
-
Custom Shapes
-
Document Capabilities
-
User Interaction
- UI Customization
- Adaptability
-
Charts
- Overview
-
Data Binding
-
Area Charts
-
Bar Charts
- Bullet Charts
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Doughnut Charts
-
Financial Charts
-
Line Charts
-
Pie Charts
-
Point Charts
-
Polar and Radar Charts
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Range Charts
-
Sparkline Charts
-
Tree Map
-
Funnel and Pyramid Charts
- Sankey Chart
-
Combinations
-
More Features
-
Export
-
Selection
-
Tooltips
-
Zooming
-
-
Gantt
- Overview
-
Data
-
UI Customization
- Strip Lines
- Export to PDF
- Sorting
-
Filtering
-
Gauges
- Overview
-
Data Binding
-
Bar Gauge
-
Circular Gauge
-
Linear Gauge
-
Navigation
- Overview
- Accordion
-
Menu
- Multi View
-
Drawer
-
Tab Panel
-
Tabs
-
Toolbar
- Pagination
-
Tree View
- Right-to-Left Support
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Layout
-
Tile View
- Splitter
-
Gallery
- Scroll View
- Resizable
-
-
Editors
- Overview
- Autocomplete
-
Calendar
- Check Box
- Color Box
- Date Box
-
Date Range Box
-
Drop Down Box
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Number Box
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Select Box
- Switch
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Tag Box
- Text Area
- Text Box
- Validation
- Custom Text Editor Buttons
- Right-to-Left Support
- Editor Appearance Variants
-
Forms and Multi-Purpose
- Overview
- Button Group
- Field Set
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Filter Builder
-
Form
- Radio Group
-
Range Selector
- Numeric Scale (Lightweight)
- Numeric Scale
- Date-Time Scale (Lightweight)
- Date-Time Scale
- Logarithmic Scale
- Discrete scale
- Custom Formatting
- Use Range Selection for Calculation
- Use Range Selection for Filtering
- Image on Background
- Chart on Background
- Customized Chart on Background
- Chart on Background with Series Template
- Range Slider
- Slider
-
Sortable
-
File Management
-
File Manager
- Overview
-
File System Types
-
Customization
-
File Uploader
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-
Actions and Lists
-
Maps
- Overview
-
Map
-
Vector Map
-
Dialogs and Notifications
-
Localization
Related Demos:
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Charts - Drill Down
If you bind a TreeMap to a data source with a hierarchical structure, you can enable drill-down and drill-up functionality:
- "Drill down" means navigate to a more detailed view.
- "Drill up" means navigate back up a level.
www.wikipedia.org
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Backend API
x
@model IEnumerable<DevExtreme.MVC.Demos.Models.ContinentPopulation>
@(Html.DevExtreme().TreeMap()
.DataSource(Model)
.Size(s => s.Height(440))
.Title(t => t
.Text("The Most Populated Cities by Continents")
.PlaceholderSize(80))
.Colorizer(c => c.Palette(VizPalette.Soft))
.InteractWithGroup(true)
.MaxDepth(2)
.OnClick(@<text>
function(e) {
e.node.drillDown();
}
</text>)
.OnDrill(@<text>
function(e) {
var markup = $("#drill-down-title").empty(),
node;
for(node = e.node.getParent(); node; node = node.getParent()) {
markup.prepend(" > ").prepend($("<span />")
.addClass("link")
.text(node.label() || "All Continents")
.data("node", node)
.on("dxclick", onLinkClick));
}
if(markup.children().length) {
markup.append(e.node.label());
}
}
</text>)
)
<div id="drill-down-title"></div>
<script>
function onLinkClick(e) {
$(e.target).data("node").drillDown();
}
</script>
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In this demo, you can click/tap a group of TreeMap tiles to drill down. Once you go down a level, navigation links appear at the top of the TreeMap. Use them to drill back up. To implement this technique, follow the steps below:
-
Set the interactWithGroup property to
true
to force the control to hot-track entire groups instead of individual items. -
Call the node.drillDown method in the TreeMap onClick handler.
-
To enable drill-up functionality, generate links in the onDrill handler. Call the node.drillDown method on link clicks. Inspect the code below for implementation details.