Sometimes it is necessary to present data from a data source of huge size, for example, when you have thousands or even millions of records in your data table. In this case, the virtual grid can be an optimal or sometimes the only possible solution. The grid is called virtual in this case because only some (usually small) part of the data from a data source is actually present on the client side at any given moment and when the user scrolls the grid up or down, another portion of data is retrieved from the data source.
The Virtual Mode in the Elegant Simple Grid Demos application that comes with the installer is an example of the truly virtual grid. The elegant virtual grid control is designed in a way, so you only need to set the total number of rows in the underlying table and handle an event that requests data for visible rows.
Virtual Mode from the Elegant Simple Grid Demos application is an example of the virtual grid