how to validate in datagridview enter only numbers not allowed characters

private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
            var value = (((DataGridView) (sender)).CurrentCell).Value;
            if (value != null)
            {
                var txt = value.ToString();
                double result;
                double.TryParse(txt, out result);
                if (result == 0)
                {
                    (((DataGridView)(sender)).CurrentCell).Value = 0;
                    MessageBox.Show("Invalid input.");
                }
            }
        }