Guriddo jqGrid - jQuery based grid HTML5 component for Javascript

Loading Data

Load 1 million rows from JSONP
Load from live JSON API (StackOverflow)
Load from XML
Load from JSON
Load from Javascript Array
Load Once
Virtual Load On Demand Mode - scrollbar paging

Functionality

Localization
Frozen Columns
Right-To-Left (RTL) Support
Customize Footer
Cell formatters (built-in)
Cell formatters (custom)
Column Reordering
Context Menu for Rows
Toolbar Settings
Custom Toolbar Button
Group Column Headers
Show Row Numbers
Highlight Rows On Hover
Alternate Row Background
Custom Grid Caption
Keyboard Support

Editing, Adding, Deleting rows

Dialogs: edit Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Dialogs: Edit, Add, Delete
Dialogs: Custom Layout
Dialogs: Linked / Dependent dropdowns
Dialogs: Validation - client-side
Dialogs: Validation - server-side
Dialogs: Context Menu triggers Edit/Add/Delete
Inline: Batch Editing
Inline: edit Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Inline: Toolbar Control Buttons
Inline: Row Control Buttons
Inline: On Row Click
Inline: Validation - client-side
Inline: Validation - server-side

Hierarchy

Simple
Custom Row Details
Custom Icons
Expand on Load
Load Subgrid Once
Two level hierarchy
Three level hierarchy

Selection

Get / Set selected row
Master / Detail
CheckBox selection

Paging

Paging on the server
Virtual Load On Demand Mode - scrollbar paging

Sorting

Sorting (client-side)
Sorting (server-side)
Sorting by multiple columns
Custom Sorting Function

Searching / Filtering

Search Toolbar: Search Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Search Toolbar with search options
Validate client input on search
Custom search templates
Search Dialog Single Field Search: Search Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Search Dialog Multiple Field Search: Search Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)

Grouping

Basic grouping
Grouping with Summary Footers
Grouping with Summaries and Grand Total
Grouping by Multiple Columns
Grouping by Multiple Columns with Footer Summaries
Grouping by Multiple Columns with Header Summaries
Dynamic grouping

Integrations

Column Chooser
Sortable rows in grid
Drag and drop rows between grids
Resizing the grid
Context Menu for Rows
Search Toolbar: Search Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Search Dialog Single Field Search: Search Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Dialogs: Edit Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)
Inline: Edit Controls (datepicker, autocomplete, dropdown, checkbox, custom, etc)