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Data Grids / Data Management
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Data Grid
- Overview
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Data Binding
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Filtering
- Sorting
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Editing
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Grouping
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Selection
- Focused Row
- Paging
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Scrolling
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Columns
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Master-Detail
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Data Summaries
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Drag & Drop
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Export to PDF
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Export to Excel
- Appearance
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Customization
- State Persistence
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Adaptability
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Keyboard Navigation
- Right-To-Left Support
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Tree List
- Overview
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Data Binding
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Filtering
- Sorting
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Editing
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Selection
- Focused Row
- Paging
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Columns
- Drag & Drop
- State Persistence
- Adaptability
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Keyboard Navigation
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Card View
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Pivot Grid
- Overview
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Data Binding
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Field Management
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Data Summaries
- Drill Down
- Filtering
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Scrolling
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Export to Excel
- Chart Integration
- Customization
- State Persistence
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Filter Builder
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Data Visualization
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Charts
- Overview
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Data Binding
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Common Concepts
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Axis
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Aggregation
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Tooltips
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Selection
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Customization
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Zooming
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Export
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Area Charts
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Bar Charts
- Bullet Charts
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Doughnut Charts
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Financial Charts
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Funnel and Pyramid Charts
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Line Charts
- Pareto Chart
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Pie Charts
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Point Charts
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Polar and Radar Charts
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Range Charts
- Sankey Chart
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Sparkline Charts
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Tree Map
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Gauges
- Overview
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Runtime update
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Bar Gauge
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Circular Gauge
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Linear Gauge
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Diagram
- Overview
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Data Binding
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Featured Shapes
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Custom Shapes
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Document Capabilities
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User Interaction
- UI Customization
- Adaptability
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Scheduling / Planning
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Scheduler
- Overview
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Data Binding
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Views
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Appointments
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Timetable
- Editing
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Grouping
- Virtual Scrolling
- Drag & Drop
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Customization
- Adaptability
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Gantt
- Overview
- Data Binding
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Filtering
- Sorting
- Strip Lines
- Export to PDF
- Validation
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Customization
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Messaging
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WYSIWYG Editor
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Forms
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Data Editors
- Overview
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Common Concepts
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Calendar
- Check Box
- Color Box
- Date Box
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Date Range Box
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Number Box
- Radio Group
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Range Selector
- Range Slider
- Slider
- Switch
- Text Area
- Text Box
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Drop-Downs
- Autocomplete
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Drop Down Box
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Select Box
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Tag Box
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Lookup
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Buttons
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File Upload / File Management
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File Manager
- Overview
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File System Types
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Customization
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File Uploader
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Popup and Notifications
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Navigation
- Overview
- Accordion
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Context Menu
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Menu
- Multi View
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Drawer
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Tab Panel
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Tabs
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Toolbar
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Stepper
- Pagination
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List
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Tree View
- Right-to-Left Support
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Layout
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Tile View
- Splitter
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Gallery
- Scroll View
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Interactive Wrappers
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Sortable
- Resizable
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Progress Indicators
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Maps
- Overview
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Map
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Vector Map
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Data Binding
- Multiple Layers
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Markers
- Legend
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Zooming and Panning
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Customization
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Localization
Related Demos:
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File Manager - Custom Thumbnails
The FileManager component allows you to provide custom thumbnails. Handle the customizeThumbnail property to specify how the component presents files in folders.
Backend API
@(Html.DevExtreme().FileManager()
.FileSystemProvider(new JS("fileSystem"))
.ItemView(view => view.Mode(FileManagerItemViewMode.Thumbnails))
.CustomizeThumbnail(@<text>
function(fileManagerItem) {
if(fileManagerItem.isDirectory)
return '@Url.Content("~/Content/images/thumbnails/folder.svg")';
var fileExtension = fileManagerItem.getFileExtension();
if(fileExtension === ".txt")
return '@Url.Content("~/Content/images/thumbnails/doc-txt.svg")';
if(fileExtension === ".rtf")
return '@Url.Content("~/Content/images/thumbnails/doc-rtf.svg")';
if(fileExtension === ".xml")
return '@Url.Content("~/Content/images/thumbnails/doc-xml.svg")';
return null;
}
</text>)
.Permissions(permissions => permissions
.Create(true)
.Copy(true)
.Move(true)
.Delete(true)
.Rename(true)
.Upload(true)
.Download(true))
.Height(450))
<script src="~/Scripts/data/fileSystem.js"></script>
using DevExtreme.MVC.Demos.Models.FileManagement;
using System.Web.Mvc;
namespace DevExtreme.MVC.Demos.Controllers {
public class FileManagerController : Controller {
public ActionResult CustomThumbnails() {
return View();
}
}
}
var fileSystem = [
{
name: "Documents",
isDirectory: true,
category: "Work",
items: [
{
name: "Projects",
isDirectory: true,
category: "Work",
items: [
{
name: "About.rtf",
isDirectory: false,
size: 1024
},
{
name: "Passwords.rtf",
isDirectory: false,
category: "Important",
size: 2048
}
]
},
{
name: "About.xml",
isDirectory: false,
size: 1024
},
{
name: "Managers.rtf",
isDirectory: false,
size: 2048
},
{
name: "ToDo.txt",
isDirectory: false,
size: 3072
}
],
},
{
name: "Images",
isDirectory: true,
category: "Home",
items: [
{
name: "logo.png",
isDirectory: false,
size: 20480
},
{
name: "banner.gif",
isDirectory: false,
size: 10240
}
]
},
{
name: "System",
isDirectory: true,
category: "Important",
items: [
{
name: "Employees.txt",
isDirectory: false,
category: "Important",
size: 3072
},
{
name: "PasswordList.txt",
isDirectory: false,
category: "Important",
size: 5120
}
]
},
{
name: "Description.rtf",
isDirectory: false,
size: 1024
},
{
name: "Description.txt",
isDirectory: false,
size: 2048
}
];