Sigma Grid -- Ajax-enabled JavaScript grid control

Sigma Grid is a Ajax-enabled JavaScript grid control that provides professional solution for representing and editing tabular data on the web. Pure javascript codes, Seamless Integration with j2ee, .net, PHP, perl, etc. Inline editing, keyboard data navigation, nested multiline headers, sortable and frozen columns. Slice rendering and built-in paginal output allow you to manipulate huge datasets on the fly. Powerful aggregation by group and printing technology, to make it easy to build a traditional-look printable reports. OGNL format supported, smooth objects converting between presentation layer and logic layer. Extensibility to customize external component (user defined editor), present cell data as your customers wish (user defined renderer). Plentiful attibutes and event handlers give you more flexibility without coding too much. See master/details demo. Export and import in CSV / XML / JSON format, to support further editing within spreadsheet or any other applications.