Delete Data from Datagridview and Database c#

Question

I am trying to delete data from Datagridview and Database simultaneously but it is not deleting the data from database and showing no error.

foreach (DataGridViewRow item in this.category_grid.SelectedRows)
                {
                    string name = item.Cells[0].Value.ToString();
                    connection.Open();
                    OleDbCommand command = new OleDbCommand("delete  from Category where CatName = '" +name+ "'",connection);
                    command.ExecuteNonQuery();
                    category_grid.Rows.RemoveAt(item.Index);
                    connection.Close();
                }