Teroid Grid Control - Version 1.0 There are plenty of grid controls around, including the DataGrid supplied with Visual Studio .NET, but this one fills the need for a simple, no frills control. It has a collection of rows and columns which can be added to or deleted from, and an automatically maintained collection of cells. It is therefore as easy to program as, for example, a ListBox, ListControl or TreeControl, and is an ideal complement to these.