private void Txb_LastName_Validating(object sender, CancelEventArgs e)
{
try
{
string lastName = Txb_LastName.Text;
if (lastName == string.Empty)
{
this.EP_ErrorMessage.SetError(Txb_LastName, GlobalStrings.FailureInputTxbNames_Empty);
e.Cancel = true;
}
else if (!Char.IsUpper(lastName[0]))
{
EP_ErrorMessage.SetError(Txb_LastName, GlobalStrings.FailureInputTxbNames_InvalidFirstLetter);
e.Cancel = true;
}
else
{
this.EP_ErrorMessage.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void Txb_Amount_Validating(object sender, CancelEventArgs e)
{
char invalidChar;
try
{
if (this.Text == "Payments")
{
invalidChar = ',';
}
else
{
invalidChar = '.';
}
if (!Double.TryParse(Txb_Amount.Text, out double money) || Txb_Amount.Text.Contains(invalidChar))
{
this.EP_ErrorMessage.SetError(Txb_Amount, GlobalStrings.FailureTxbAmount);
e.Cancel = true;
}
else
{
EP_ErrorMessage.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void Txb_MoneyAccount_Validating(object sender, CancelEventArgs e)
{
try
{
if (!Double.TryParse(Txb_MoneyAccount.Text, out double money))
{
this.EP_ErrorMessage.SetError(Txb_MoneyAccount, GlobalStrings.FailureTxbAmount);
e.Cancel = true;
}
else
{
EP_ErrorMessage.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void Txb_EmailAddress_Validating(object sender, CancelEventArgs e)
{
string emailAddress = Txb_EmailAddress.Text;
bool isEmailcorrect = false;
int counter = 0;
int counterPoint = 0;
try
{
// E-mail address must have at least one . after the @ and must contain exactly one @
for (int i = 0; i < emailAddress.Length; i++)
{
if (emailAddress[i] == '@')
{
counter++; // counter for the @
for (int j = i; j < emailAddress.Length; j++)
{
if (emailAddress[j] == '.')
{
counterPoint++; // counter for the points
}
}
if (counter == 1 && counterPoint != 0)
{
isEmailcorrect = true;
}
}
}// end for-loop
int counterCharactersAfterPoint = 0;
for (int i = emailAddress.Length - 1; i >= 0; i--)
{
if (emailAddress[i] == '.' && counterCharactersAfterPoint >= 2 && counterCharactersAfterPoint <= 4)
{
isEmailcorrect = true;
break;
}
else if (Char.IsLetter(emailAddress[i]))
{
counterCharactersAfterPoint++;
}
else
{
isEmailcorrect = false;
break;
}
}
if (!isEmailcorrect)
{
EP_ErrorMessage.SetError(Txb_EmailAddress, GlobalStrings.FailureInputTxbEmail);
e.Cancel = true;
}
else
{
EP_ErrorMessage.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
