//Sets the form to defaulr state for another input by setting the visible and enable accordingly.
private void ClearButton_Click(object sender, EventArgs e)
{
SearchTrxNoGroupBox.Visible = false;
MailIdDisplayListView.Visible = false;
DisplayButton.Enabled = true;
InvestAmountTextBox.Focus();
TimeFrameListBox.Visible = false;
SummaryGroupBox.Visible = false;
SummaryButton.Enabled = true;
SummaryButton.Visible = true;
ClientDetailGroupBox.Visible = false;;
DetailsDisplayGroupBox.Visible = false;
SearchDisplayGroupBox.Visible = false;
InvestAmountTextBox.Enabled = true;
SearchTrxNoGroupBox.Visible = false;
SearchMailIdGroupBox.Visible = false;
SearchOptionGroupBox.Visible = true;
FirstProceedButton.Visible = false;
ConfirmButton.Visible = false;
FinalConfirmButton.Visible = false;
InvestAmountTextBox.Clear();
InvestAmountTextBox.Focus();
ClearButton.Enabled = false;
TrnxNoSearchRadioButton.Checked = false;
MailIdSearchRadioButton.Checked = false;
}
//Handles Exception if values are too big or null.
private void InvestAmountTextBox_TextChanged(object sender, EventArgs e)
{
try
{ //Checks if the value is too big.
int.Parse(InvestAmountTextBox.Text);
//Sub checks for displaying bonus label.
if (InvestAmountTextBox.Text != "" && int.Parse(InvestAmountTextBox.Text) > 1000001)
{
BonusDetailLabel.Visible = true;
BonusDetailLabel.Text = "Eligible for 25000 euro bonus if term is greater than 1";
}
else if ((InvestAmountTextBox.Text) == "" || (int.Parse(InvestAmountTextBox.Text) < 25000))
{
BonusDetailLabel.Visible = false;
}
}
catch
{
//Exception is thrown.
if (string.IsNullOrEmpty(InvestAmountTextBox.Text))
{
MessageBox.Show("Input Field", "Empty Field", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Enter a Smaller/Numerical value");
InvestAmountTextBox.SelectAll();
}
}
}
//Displays the available terms and interests rates in a list box according to the user investment value.
private void DisplayButton_Click(object sender, EventArgs e)
{
//By-deafault checked=false may not work thus syntaxing it here.
TrnxNoSearchRadioButton.Checked = false;
decimal PrincipalAmount;
try
{
//If value is parsed visibility is handled.
PrincipalAmount = decimal.Parse(InvestAmountTextBox.Text);
TimeFrameListBox.Items.Clear();
ClearButton.Enabled = true;
SearchTrxNoGroupBox.Visible = false;
DisplayButton.Enabled = false;
InvestAmountTextBox.Enabled = false;
SummaryButton.Enabled = false;
TimeFrameListBox.Visible = true;
FirstProceedButton.Visible = true;
FirstProceedButton.Enabled = false;
SummaryGroupBox.Visible = false;
//Checks the condition and calls the meathod to calculate compound interest(C.I).
if (PrincipalAmount <= 25000)
{
EndAmount1 = CalculateInterest(PrincipalAmount, LINTERESTRATE1, TIMEFRAME1);
EndAmount2 = CalculateInterest(PrincipalAmount, LINTERESTRATE2, TIMEFRAME2);
EndAmount3 = CalculateInterest(PrincipalAmount, LINTERESTRATE3, TIMEFRAME3);
EndAmount4 = CalculateInterest(PrincipalAmount, LINTERESTRATE4, TIMEFRAME4);
//Stores if the listbox along with formatting.
TimeFrameListBox.Items.Add(TIMEFRAME1 + "\t" + LINTERESTRATE1.ToString("C3") + "%" + "\t" + EndAmount1.ToString("C4"));
TimeFrameListBox.Items.Add(TIMEFRAME2 + "\t" + LINTERESTRATE2.ToString("C3") + "%" + "\t" + EndAmount2.ToString("C4"));
TimeFrameListBox.Items.Add(TIMEFRAME3 + "\t" + LINTERESTRATE3.ToString("C3") + "%" + "\t" + EndAmount3.ToString("C4"));
TimeFrameListBox.Items.Add(TIMEFRAME4 + "\t" + LINTERESTRATE4.ToString("C3") + "%" + "\t" + EndAmount4.ToString("C4"));
}
//Checks the condition and calls the meathod to calculate compound interest(C.I).
else if (PrincipalAmount > 25000)
{
EndAmount1 = CalculateInterest(PrincipalAmount, GINTERESTRATE1, TIMEFRAME1);
EndAmount2 = CalculateInterest(PrincipalAmount, GINTERESTRATE2, TIMEFRAME2);
EndAmount3 = CalculateInterest(PrincipalAmount, GINTERESTRATE3, TIMEFRAME3);
EndAmount4 = CalculateInterest(PrincipalAmount, GINTERESTRATE4, TIMEFRAME4);
TimeFrameListBox.Items.Clear();
//Stores if the listbox along with formatting.
TimeFrameListBox.Items.Add(TIMEFRAME1 + "\t" + GINTERESTRATE1.ToString("C3") + "%" + "\t" + EndAmount1.ToString("C4"));
TimeFrameListBox.Items.Add(TIMEFRAME2 + "\t" + GINTERESTRATE2.ToString("C3") + "%" + "\t" + EndAmount2.ToString("C4"));
TimeFrameListBox.Items.Add(TIMEFRAME3 + "\t" + GINTERESTRATE3.ToString("C3") + "%" + "\t" + EndAmount3.ToString("C4"));
TimeFrameListBox.Items.Add(TIMEFRAME4 + "\t" + GINTERESTRATE4.ToString("C3") + "%" + "\t" + EndAmount4.ToString("C4"));
}
}
//Throws exception if value is not numerical.
catch
{
MessageBox.Show("Input Numerical Value ", "Invalid Input", MessageBoxButtons.OK, MessageBoxIcon.Error);
InvestAmountTextBox.SelectAll();
InvestAmountTextBox.Focus();
}
}
//When users confirms his final details and books his investment.
private void FinalConfirmButton_Click(object sender, EventArgs e)
{
InvestedAmount = decimal.Parse(InvestAmountTextBox.Text);
//If all the fields are are there and valid then it will write it in the file.
if (ClientName != "" && ClientTelNo != "" && EmailStatus == true)
{
//Creates object for writing in file
StreamWriter InvestMeFile;
//Opens the file in append mode and writes.
InvestMeFile = File.AppendText("InvestMeTransactionDetails.txt");
InvestMeFile.WriteLine("xxxxxxxx");
InvestMeFile.WriteLine(TransactionNo);
InvestMeFile.WriteLine(ClientMailId);
InvestMeFile.WriteLine(ClientName);
InvestMeFile.WriteLine(ClientTelNo);
InvestMeFile.WriteLine(InvestedAmount);
InvestMeFile.WriteLine(Term);
InvestMeFile.WriteLine(InterestRate);
InvestMeFile.WriteLine(FinalAmount);
InvestMeFile.Close();
}
//Sets the value back to 0 if user wishes to view the summary in process after confirmation.
SummaryListView.Items.Clear();
TotalTerm = 0;
TotalAmount = 0;
FinalInterest = 0;
MessageBox.Show("Transaction No:" + TransactionNo + "\n\nBOOKING IS CONFIRMED", "Thankyou For Investing with us.", MessageBoxButtons.OK, MessageBoxIcon.Information);
//Visibility is set if user wants to proceed with another transaction/Summary/Search.
TimeFrameListBox.Visible = false;
InvestAmountTextBox.Enabled = true;
DetailsDisplayGroupBox.Visible = false;
ClientDetailGroupBox.Visible = false;
FirstProceedButton.Visible = false;
ConfirmButton.Visible = false;
FinalConfirmButton.Visible = false;
InvestAmountGroupBox.Enabled = true;
InvestAmountTextBox.Clear();
InvestAmountTextBox.Focus();
DisplayButton.Enabled = true;
SummaryButton.Enabled = true;
}
private void DisplayButton_Click(object sender, EventArgs e)
{
string Str = InvestAmountTextBox.Text;
double Num;
bool isNum = double.TryParse(Str, out Num);
if (isNum && InvestAmountTextBox.TextLength >= 5)
{
Month1RadioButton.Enabled = true;
Month3RadioButton.Enabled = true;
Month6RadioButton.Enabled = true;
Month12RadioButton.Enabled = true;
ProceedButton.Enabled = true;
ClearButton.Enabled = true;
if (InvestAmountTextBox.Text != "" && InvestAmountTextBox.TextLength == 5 && InvestAmountTextBox.TextLength < 6)//check there aren't negatives, set max limit(max and min)
{
//principal = decimal.Parse(InvestAmountTextBox.Text);
// Amount = (principal * (Math.Pow ((double)(1 + INTEREST_ON_AMOUNT_UPTO_100K_1MONTH, TERM_1)) - 1).ToString;
decimal principal = decimal.Parse(InvestAmountTextBox.Text);
//CalculateInterest(principal, 6m, 6m);
//label6.Text = Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_UPTO_100K_1MONTH, TERM_1);
Month1InterestWithPrincipal = (decimal)Amount;
Month1RadioButton.Text = "1 month " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_0N_AMOUNT_UPTO_100K_3MONTH, TERM_3);
Month3InterestWithPrincipal = (decimal)Amount;
Month3RadioButton.Text = "3 months " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_UPTO_100K_6MONTH, TERM_6);
Month6InterestWithPrincipal = (decimal)Amount;
Month6RadioButton.Text = "6 months " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_UPTO_100K_12MONTH, TERM_12);
Month12InterestWithPrincipal = (decimal)Amount;
Month12RadioButton.Text = "12 months " + Amount.ToString("C2");
}
else if (InvestAmountTextBox.Text != "" && InvestAmountTextBox.TextLength == 6 && InvestAmountTextBox.TextLength < 7)
{
decimal principal = decimal.Parse(InvestAmountTextBox.Text);
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_1MONTH, TERM_1);
Month1InterestWithPrincipal = (decimal)Amount;
Month1RadioButton.Text = "1 month " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_3MONTH, TERM_3);
Month3InterestWithPrincipal = (decimal)Amount;
Month3RadioButton.Text = "3 months " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_6MONTH, TERM_6);
Month6InterestWithPrincipal = (decimal)Amount;
Month6RadioButton.Text = "6 months " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_12MONTH, TERM_12);
Month12InterestWithPrincipal = (decimal)Amount;
Month12RadioButton.Text = "12 months " + Amount.ToString("C2");
}
else if (InvestAmountTextBox.Text != "" && InvestAmountTextBox.TextLength == 7 && InvestAmountTextBox.TextLength < 9)
{
decimal principal = decimal.Parse(InvestAmountTextBox.Text);
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_1MONTH, TERM_1);
Month1InterestWithPrincipal = (decimal)Amount;
Month1RadioButton.Text = "1 month " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_3MONTH, TERM_3);
Month3InterestWithPrincipal = (decimal)Amount;
Month3RadioButton.Text = "3 months " + Amount.ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_6MONTH, TERM_6);
Month6InterestWithPrincipal = (decimal)(Amount + 5000);
Month6RadioButton.Text = "6 months " + "+ £5000 " + (Amount + 5000).ToString("C2");
CalculateInterest(principal, INTEREST_ON_AMOUNT_ABOVE_100K_12MONTH, TERM_12);
Month12InterestWithPrincipal = (decimal)(Amount + 5000);
Month12RadioButton.Text = "12 months " + "+ £5000 " + (Amount + 5000).ToString("C2");
}
else
{
MessageBox.Show("Please enter a valid Number Not less than 5 digits", "Invalid Input", MessageBoxButtons.OK, MessageBoxIcon.Warning);
InvestAmountTextBox.Focus();
InvestAmountTextBox.SelectAll();
}
}
else
{
MessageBox.Show("Please enter a valid Number Not Strings or Symbols", "Invalid Input", MessageBoxButtons.OK, MessageBoxIcon.Warning);
InvestAmountTextBox.Focus();
InvestAmountTextBox.SelectAll();
}
}
