private void BtnReset2_Click(object sender, EventArgs e) { TBmilesTOkms.Text = ""; numDouble3 = 0.00; numDouble4 = 0.00; TBmilesTOkms.Focus(); }
private void PictureBox3_Click_1(object sender, EventArgs e) { if (TBmilesTOkms.Text == "0") { MessageBox.Show("Please enter a numeric value different to 0", "No valid data entered"); TBmilesTOkms.Focus(); } else { if (double.TryParse(TBmilesTOkms.Text, out numDouble3)) { numDouble4 = numDouble3 * 1.609; TBmilesTOkms.Text = numDouble4.ToString(); } else { MessageBox.Show("Please enter a numeric value to convert", "No valid data entered"); TBmilesTOkms.Focus(); } } }