How do I prevent the datagrid from displaying its append row (the row at the end with an asterisk)?

1. For this you could use something like: ((DataView)dataGrid1.DataSource).AllowNew = false; or you can set the option before you set the data source: dataView1.AllowNew = false; dataGrid1.DataSource = dataView1; 2. (DataView)dataGrid1.DataSource gives you the DataView