DataGridView Edit Column Names

You can edit the header directly:

dataGridView1.Columns[0].HeaderCell.Value = "Created";
dataGridView1.Columns[1].HeaderCell.Value = "Name";

And so on for as many columns you have.

You can also change the column name by using:

myDataGrid.Columns[0].HeaderText = "My Header"

but the myDataGrid will need to have been bound to a DataSource.