EJS TreeGrid is DHTML component written in pure JavaScript to display and edit data in table, grid, tree view or grid with tree.
The data can come from many data sources: text file, XML file, XML web service, SOAP web service, or any page generated by PHP, JSP, ASP, ASP.NET, ... Changed data can be uploaded to server without or by page submit. Methods of upload can be text, HTML form POST, XML, SOAP XML.
EJS TreeGrid is client component and runs on IE 5.5+, Mozilla 1.0+, Firefox 1.0+, Navigator 6.0+, Opera 7.60+.

Functions: Key or mouse control. Cell formatting; cell editing - various types of edit controls, RegExp mask possible.
Rows selecting, adding, deleting, copying/moving/dragging by mouse; expanding, collapsing rows in tree, rows sorting by more columns, filtering by more columns. Can handle up to millions rows.
Columns resizing, moving/dragging by mouse. CSS styles. Row and cell colors. User events.
Calculated fields like in MS Excel. Copy / Paste from / to MS Excel. User defined cells, buttons, dialogs.
Configuration saved to cookies. Scrolling of parts of content. Localization. Extended API to control from JavaScript.

More info at http://www.treegrid.com