Question

I have a DataGridView with a DataSource. The DataGridView auto-generates columns for each property. I want to change this, so that it gets the data for the columns in a different way.

How can I determine how the DataGridView gets the columns and values from the items in the datasource?

Answer 1

With the DataGridView.VirtualMode property, you can supply your own datastore:

Virtual mode is designed for use with very large stores of data. When
the VirtualMode property is true, you create a DataGridView with a set
number of rows and columns and then handle the CellValueNeeded event
to populate the cells. Virtual mode requires implementation of an
underlying data cache to handle the population, editing, and deletion
of DataGridView cells based on actions of the user. For more
information about implementing virtual mode, see How to: Implement
Virtual Mode in the Windows Forms DataGridView Control.