public void TestOnLostFocusWithInvalidInput()
{
currencyTextBox.Focus();
string text = "abc.123";
currencyTextBox.Text = text;
FocusManager.SetFocusedElement(FocusManager.GetFocusScope(currencyTextBox), null);
Keyboard.ClearFocus();
Assert.AreEqual(text, currencyTextBox.Text);
}
}//end CurrencyTextBox_TextChanged
/// <summary>
/// This method starts off by determining if the entered number in the CurrencyTextBox
/// is a number. If not, a message box is shown, telling them what is wrong, then clears the CurrencyTextBox
/// and focuses it for the user and disables the button.
/// If it is a number, it saves the number into original money.
/// The program then grabs the selected indexs for the originalCurrencyComboBox and
/// newCurrencyComboBox. These values are then passed through a method in the
/// Currency_Exchange_Class which converts the currency the user has chosen.
/// The wanted currency enum name is passed into the wantType label and displayed for the user.
/// The converted money is then passed into the ConvertedCurrencyTextBox to be displayed for the user.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void equalsButton_Click(object sender, EventArgs e)
{
int originalType, newType;
double originalMoney, newMoney;
if (!double.TryParse(CurrencyTextBox.Text, out originalMoney))
{
if (originalMoney < 1)
{
MessageBox.Show("Please only use numbers");
CurrencyTextBox.Text = "";
CurrencyTextBox.Focus();
equalsButton.Enabled = false;
}
else
{
originalType = originalCurrencyComboBox.SelectedIndex;
newType = newCurrencyComboBox.SelectedIndex;
originalMoney = double.Parse(CurrencyTextBox.Text);
newMoney = Currency_Exchange_Class.conversion(originalType, newType, originalMoney);
Currencies newCountry = (Currencies)newType;
wantType.Text = newCountry.ToString();
ConvertedCurrencyTextBox.Enabled = true;
ConvertedCurrencyTextBox.Text = newMoney.ToString();
ConvertedCurrencyTextBox.Enabled = false;
CurrencyTextBox.Enabled = false;
AnotherConversionGroupBox.Visible = true;
}
}
else
{
MessageBox.Show("Please use a number greater than 0");
CurrencyTextBox.Text = "";
CurrencyTextBox.Focus();
equalsButton.Enabled = false;
}
}// end equalsButton_Click
