1)   FlyGrid.Net 1.5.3.3
FlyGrid.Net is a fast, lightweight and highly customizable .Net DataGrid/Tree control which completely manages the data, offering outstanding performance and flexibility to display and manage tabular, nested and hierarchical data.
datagrid, data grid, winforms, tree, inplace, editor, dropdown, dialog, grid, .net,

 2)   FlexCell Grid Control for .NET 1.6.6
FlexCell is a flexible and easy to use grid control, it provides comprehensive functions, such as exporting to Excel/CSV/HTML/XML, importing from XML, printing, preview, sorting, charting, cell merging, virtual mode, ownerdraw mode, etc.
.NET Grid Control, WinForm, Windows Form Control, Grid Component, Chart, Merge Cell, Export To Excel, Print, Print Preview,