EJS TreeGrid is a DHTML component written in pure JavaScript to display and edit data in table, grid, tree view or grid with tree on HTML page.
It is the fastest AJAX grid with the richest features set on the Internet.

Compatible with Internet Explorer 5.0+, Mozilla 1.0+, Mozilla Firefox 1.0+, Netscape Navigator 6.0+, Opera 7.60+, KHTML (Konqueror 3.0+, Safari 1.2+).

Main advantages to other grids:
tree capability, including dragging rows and downloading children by AJAX;
advanced editing, including editing masks, runtime and post process validation, multiline editing, editing types and formats, automatic uploading by AJAX;
interactive Gantt chart creating, including dependencies and dynamic updating;
advanced cell formulas, expressions and calculations like in MS Excel;
extended filters like in MS Excel or by any custom expression;
searching like by Google;
printing capabilities;
export to Microsoft Excel;
very fast sorting;
various paging types to display nearly unlimited count (millions) of rows using AJAX and pager component;
automatic grouping rows to tree according to column values (like PivotTable in MS Excel);
fixed (frozen) columns and rows on all sides;
moving columns, freezing or unfreezing columns by mouse, resizing, hiding/showing columns;
selecting rows or cell ranges by key or mouse;
various cell types like text, number, date, check box, radio, textarea, combo box, image, link or any other HTML;
synchronization data with server;
master / detail relationship;
dynamic displaying of external objects like Adobe Flash, Microsoft SilverLight;
fully customizable CSS styles and key and mouse navigation action schemas;
no need of any JavaScript code on page;
multilanguage, also RTL support for Arabic languages, including Hirji calendar;

EJS TreeGrid can be used in any server script environment with XML capability and contains many examples and predefined code for ASP (VBScript), ASP.NET (C#, Visual Basic), JSP (Java) and PHP.