I have a list view comprised of the following:
// Add column headers for log
logListView.View = View.Details;
logListView.GridLines = true;
logListView.FullRowSelect = true;
logListView.Columns.Add("Event ID", 70);
logListView.Columns.Add("Checkname", 150);
logListView.Columns.Add("Hostname", 120);
logListView.Columns.Add("Result", 150);
logListView.Columns.Add("Date", 125);
logListView.Columns.Add("Time", 125);
Each column holds data, although how would it be possible to delete all data in a specific column? (as illustrated below in the red box)

You can set that column values to empty string: