Flickering during updates to Controls in WinForms (e.g. DataGridView)

Question

In my application I have a DataGridView control that displays data for the selected object. When I select a different object (in a combobox above), I need to update the grid

Answer 1

Rather than adding the rows of the data grid one at a time, use the DataGridView.Rows.AddRange method to add all the rows at once. That should only update the display once. There's also a DataGridView.Columns.AddRange to do the same for the columns.