/*
* Event Handler for Client Confirmed Text Box- Leave event
* If user try to change term without pressing 'Proceed' Button
*/
private void ClientConfirmedTextBox_Leave(object sender, EventArgs e)
{
if (ProceedButton.Enabled == false && ConfirmedTerm.ToString() != ClientConfirmedTextBox.Text)
{
MessageBox.Show("Confirmed Term changed from " + ConfirmedTerm.ToString() + " to " + ClientConfirmedTextBox.Text + "\n Press 'Proceed' to confirm this changes", "Term Changed", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ProceedButton.Enabled = true;
}
}
/*
* Event Handler for Confirm Button
* -Validating FUll Name, Telephone Number, Email Address
* -
*/
private void ConfirmButton_Click(object sender, EventArgs e)
{
StreamWriter FileWriter;
string DynamicMessage;
if (ProceedButton.Enabled == true)
{
MessageBox.Show("Please Confirm the Term by pressing Proceed button before confirming the membership");
}
else
{
if (NotNullValue(FullNameTextBox.Text, 1))
{
//Full Name Regular Express Validation
//One Word is mandatory which includes Capital and small Letters
if (!Regex.IsMatch(FullNameTextBox.Text, @"^[A-Z a-z]*([A-Z a-z]*)+$"))
{
MessageBox.Show("Please enter valid name", "Invalid Name", MessageBoxButtons.OK, MessageBoxIcon.Error);
FullNameTextBox.Focus();
FullNameTextBox.SelectAll();
}
else
{
if (NotNullValue(TelephoneTextBox.Text, 2))
{
//Telephone Number Reguar Expression Validation
//Grouping of 3 Number followed by space(not mandatory), then Next 3 numbers followed by space and then last 4 digits
if (!Regex.IsMatch(TelephoneTextBox.Text, @"^(\(?\d{3}\)*\s?\d{3}\s?\d{4})$"))
{
MessageBox.Show("Please enter valid telephone Number", "Invalid Number", MessageBoxButtons.OK, MessageBoxIcon.Error);
TelephoneTextBox.Focus();
TelephoneTextBox.SelectAll();
}
else
{
if (NotNullValue(EmailTextBox.Text, 3))
{
//Email Validation by Regular Expression
bool CorrectEmail = Regex.IsMatch(EmailTextBox.Text, @"\A(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?)\Z", RegexOptions.IgnoreCase);
if (!CorrectEmail)
{
MessageBox.Show("Please enter valid email address", "Invalid Email Address", MessageBoxButtons.OK, MessageBoxIcon.Error);
EmailTextBox.Focus();
EmailTextBox.SelectAll();
}
else
{
//If all the detais are correct, providing popup
DynamicMessage = "Provided Details are as below:";
DynamicMessage = DynamicMessage + "\n\nMembership Details :";
DynamicMessage = DynamicMessage + "\nMembership ID : " + MembershipIDLabel.Text;
DynamicMessage = DynamicMessage + "\nConfirmed Term : " + ConfirmedTerm.ToString();
DynamicMessage = DynamicMessage + "\nMembership Fees : " + ConfirmedTermTotal.ToString();
DynamicMessage = DynamicMessage + "\n\nPersonal Details :";
DynamicMessage = DynamicMessage + "\nFull Name : " + FullNameTextBox.Text;
DynamicMessage = DynamicMessage + "\nTelephone No. : " + TelephoneTextBox.Text;
DynamicMessage = DynamicMessage + "\nEmail ID : " + EmailTextBox.Text;
DynamicMessage = DynamicMessage + "\n\nDo you want to cofirm the Membership Details?";
//Yes No Popup Display decision
DialogResult DR = MessageBox.Show(DynamicMessage, "Do you want to Continue?", MessageBoxButtons.YesNo);
if (DR == DialogResult.Yes)
{
try
{
//Saving details of membership to the Database File
FileWriter = File.AppendText(DatabaseFileName);
FileWriter.WriteLine(MembershipIDLabel.Text);
FileWriter.WriteLine(JoinDayLabel.Text);
FileWriter.WriteLine(FullNameTextBox.Text);
FileWriter.WriteLine(TelephoneTextBox.Text);
FileWriter.WriteLine(EmailTextBox.Text);
FileWriter.WriteLine(ConfirmedTerm.ToString());
FileWriter.WriteLine(ConfirmedTermTotal.ToString("N2"));
FileWriter.Close();
//closing File Writer
if (SummaryButton.Enabled == false)
{
SummaryButton.Enabled = true;
}
if (SearchButton.Enabled == false)
{
SearchButton.Enabled = true;
}
//Confirmation Message
DynamicMessage = "Hello, " + FullNameTextBox.Text + "!. Welcome Aboard. :) \n Your Membership ID is : " + MembershipIDLabel.Text;
MessageBox.Show(DynamicMessage, "Membership Confirmed", MessageBoxButtons.OK, MessageBoxIcon.Information);
MembershipDetailsGroupBox.Visible = false;
//Clearing Fields
TermTextBox.Text =
ClientConfirmedTextBox.Text =
PricePerMonthLabel.Text =
PriceFullTermLabel.Text =
PriceNextTermLabel.Text =
FullNameTextBox.Text =
TelephoneTextBox.Text =
EmailTextBox.Text = "";
//Enabling Buttons
SearchButton.Enabled =
SummaryButton.Enabled =
TermTextBox.Enabled =
ClientConfirmedTextBox.Enabled = true;
}
catch (Exception ex)
{
// Display an error message.
MessageBox.Show(ex.Message);
}
}
}
}
}
}
}
}
}
}
/*
* Event handler for Proceed Button
* -Generating Membership ID
* -Enabling user input fields such as Email and Full Name
* -Calculating Total Fees for provided input in Client Confirmed Textbox
*/
private void ProceedButton_Click(object sender, EventArgs e)
{
Random RandomNumberGenerator = new Random();
if (ClientConfirmedTextBox.Text == "")
{
MessageBox.Show("Term can not be Blank. Please enter input in months", "Blank Entry not allowed", MessageBoxButtons.OK, MessageBoxIcon.Error);
ClientConfirmedTextBox.Focus();
ClientConfirmedTextBox.SelectAll();
}
else
{
try
{
ConfirmedTerm = int.Parse(ClientConfirmedTextBox.Text);
if (ConfirmedTerm < 0)
{
MessageBox.Show("Please Enter Positive Number", "Negative Number not Allowed in Terms", MessageBoxButtons.OK, MessageBoxIcon.Error);
ClientConfirmedTextBox.Focus();
ClientConfirmedTextBox.SelectAll();
}
else if (ConfirmedTerm == 0)
{
MessageBox.Show("Term can not be Zero. Please enter valid input", "Zero Terms not allowed in Terms", MessageBoxButtons.OK, MessageBoxIcon.Error);
ClientConfirmedTextBox.Focus();
ClientConfirmedTextBox.SelectAll();
}
else
{
SearchButton.Enabled = false;
SummaryButton.Enabled = false;
ProceedButton.Enabled = false;
//Checking if user has provided details from mentioned results
if (ConfirmedTerm.ToString() == TermTextBox.Text)
{
ConfirmedTermTotal = EnquiredPrice;
}
else if (ConfirmedTerm == NextMonth)
{
ConfirmedTermTotal = SuggestedPrice;
}
else
{
//Calculating Final Term Total based on user input
ConfirmedTermTotal = CalculateTotalFees(ConfirmedTerm);
}
int MembershipNumber = RandomNumberGenerator.Next(1, 999999);
//Randomly generating Membership ID until we get unique
//-Comparing it with file to check if generated ID exists in file
while (MembershipIdExists(MembershipNumber.ToString("D6"), false, false))
{
MembershipNumber = RandomNumberGenerator.Next(1, 999999);
}
MembershipIDLabel.Text = MembershipNumber.ToString("D6");
JoinDayLabel.Text = DateTime.Now.ToShortDateString();
MembershipDetailsGroupBox.Visible = true;
FullNameTextBox.Focus();
}
}
catch
{
MessageBox.Show("Invalid input provided for Terms. Please provide number", "Invalid Input", MessageBoxButtons.OK, MessageBoxIcon.Error);
TermTextBox.Focus();
TermTextBox.SelectAll();
}
}
}