void SetupCreditCardFields()
{
creditCardNumberEntry.TextChanged += (sender, e) =>
{
var oldTextValueLength = e.OldTextValue != null ? e.OldTextValue.Length : 0;
if (e.NewTextValue != null && e.NewTextValue.Length > oldTextValueLength)
{
string text = creditCardNumberEntry.Text.Replace(" ", "");
string newNumber = string.Empty;
for (int i = 0; i < text.Length / 4; i++)
{
newNumber += text.Substring(i * 4, 4) + " ";
}
var lastNumber = text.Length / 4 * 4;
if (lastNumber >= 0 && text.Length > lastNumber)
{
newNumber += text.Substring(lastNumber);
}
creditCardNumberEntry.Text = newNumber;
}
var cardNumber = creditCardNumberEntry.Text.Replace(" ", "");
var lengthFrom = 12;
var lengthTo = -1;
var cardType = mAppServices.GetCreditCardType(cardNumber);
cvvValidator.MinLength = 3;
EntryCvv.Placeholder = AppResources.CVV;
switch (cardType)
{
case CreditCardType.Amex:
lengthFrom = 15;
lengthTo = 15;
EntryCvv.Placeholder = AppResources.CID;
cvvValidator.MinLength = 4;
break;
case CreditCardType.Discover:
EntryCvv.Placeholder = AppResources.CID;
lengthFrom = 16;
lengthTo = 16;
break;
case CreditCardType.Mastercard:
EntryCvv.Placeholder = AppResources.CVC2;
lengthFrom = 16;
lengthTo = 16;
break;
case CreditCardType.Jcb:
EntryCvv.Placeholder = AppResources.CVV;
lengthFrom = 16;
lengthTo = 19;
break;
case CreditCardType.Maestro:
EntryCvv.Placeholder = AppResources.CVV;
lengthFrom = 12;
lengthTo = 19;
break;
case CreditCardType.Visa:
EntryCvv.Placeholder = AppResources.CVV;
lengthFrom = 12;
lengthTo = 19;
break;
}
cvvValidator.FieldName = EntryCvv.Placeholder;
if (cardNumber.Length >= lengthFrom && (lengthTo < 0 || cardNumber.Length <= lengthTo))
{
LabelCreditCardNumberValidator.Text = " ";
}
else
{
if (lengthTo > 0)
{
if (lengthTo == lengthFrom)
{
LabelCreditCardNumberValidator.Text = string.Format(AppResources.CreditCardNumberRequire, lengthFrom, lengthTo);
}
else
{
LabelCreditCardNumberValidator.Text = string.Format(AppResources.CreditCardNumberRequireMinMax, lengthFrom, lengthTo);
}
}
else
{
LabelCreditCardNumberValidator.Text = string.Format(AppResources.CreditCardNumberRequireMin, lengthFrom);
}
}
};
EntryMMYY.TextChanged += (sender, e) =>
{
var length = EntryMMYY.Text.Length;
if (length == 1)
{
try
{
int month = int.Parse(EntryMMYY.Text);
if (month < 2)
{
}
else if (month >= 2)
{
EntryMMYY.Text = "0" + month + "/";
}
}
catch (Exception)
{
EntryMMYY.Text = e.OldTextValue;
}
}
if (length == 2)
{
var oldLength = e.OldTextValue.Length;
if (oldLength == 3)
{
EntryMMYY.Text = EntryMMYY.Text.Substring(0, 1);
}
else
{
try
{
int month = int.Parse(EntryMMYY.Text);
if (month <= 12)
{
EntryMMYY.Text = EntryMMYY.Text + "/";
}
else
{
EntryMMYY.Text = e.OldTextValue;
}
}
catch (Exception)
{
EntryMMYY.Text = e.OldTextValue;
}
}
}
if (length > FormatDate.Length)
{
EntryMMYY.Text = e.OldTextValue;
}
try
{
if (EntryMMYY.Text.Length != FormatDate.Length)
{
LabelMMYY.Text = AppResources.ExpirationDateNotCorrect;
}
else
{
var date = DateTime.ParseExact(EntryMMYY.Text, FormatDate, null);
if (date.Date < DateTime.Now.AddDays(1 - DateTime.Now.Day).Date)
{
LabelMMYY.Text = AppResources.ExpirationDateIsExpired;
}
else
{
LabelMMYY.Text = " ";
}
}
}
catch (Exception)
{
LabelMMYY.Text = AppResources.ExpirationDateNotCorrect;
}
};
}