private bool IsValidated()
{
if (ClientNameTextBox.Text.Trim() == string.Empty)
{
MessageBox.Show("Client Name is required.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
ClientNameTextBox.Focus();
return(false);
}
if (ItemNameComboBox.SelectedIndex == -1)
{
MessageBox.Show("Item Name is required.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
if (QuantityTextBox.Text.Trim() == string.Empty)
{
MessageBox.Show("Quantity is required.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
QuantityTextBox.Focus();
return(false);
}
else
{
int tempQuantity;
bool isNumeric = int.TryParse(QuantityTextBox.Text.Trim(), out tempQuantity);
if (!isNumeric)
{
MessageBox.Show("Quantity should be integer value.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
QuantityTextBox.Clear();
QuantityTextBox.Focus();
return(false);
}
}
if (UnitPriceTextBox.Text.Trim() == string.Empty)
{
MessageBox.Show("Unit Price is required.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
UnitPriceTextBox.Focus();
return(false);
}
else
{
decimal n;
bool isDecimal = decimal.TryParse(UnitPriceTextBox.Text.Trim(), out n);
if (!isDecimal)
{
MessageBox.Show("Unit Price should be decimal value.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
UnitPriceTextBox.Clear();
UnitPriceTextBox.Focus();
return(false);
}
}
return(true);
}
private void NewOrderButton_Click(object sender, EventArgs e)
{
string orderNumber;
bool isOrderNumAlreadyExist = true;
while (isOrderNumAlreadyExist)
{
orderNumber = GenerateOrderNumber();
isOrderNumAlreadyExist = CheckIfOrderNumberExists(orderNumber);
OrderNumberTextBox.Text = orderNumber;
}
NewOrderButton.Enabled = false;
PrintOrderButton.Enabled = true;
PrintPreviewButton.Enabled = true;
CancelOrderButton.Enabled = true;
ItemGroupBox.Enabled = true;
ClientNameTextBox.Focus();
}
private void CancelOrderButton_Click(object sender, EventArgs e)
{
NewOrderButton.Enabled = true;
PrintOrderButton.Enabled = false;
PrintPreviewButton.Enabled = false;
CancelOrderButton.Enabled = false;
ItemGroupBox.Enabled = false;
ClientNameTextBox.Clear();
ItemNameComboBox.SelectedIndex = -1;
QuantityTextBox.Clear();
UnitPriceTextBox.Clear();
CurrentStockTextBox.Clear();
TotalAmountTextBox.Text = "0";
SalesTaxTextBox.Text = "0";
TotalToPayTextBox.Text = "0";
CartDataGridView.DataSource = null;
shoppingCart.Clear();
}
//After a term is selected from list box.
private void FirstProceedButton_Click(object sender, EventArgs e)
{
TimeFrameListBox.Visible = false;
FirstProceedButton.Enabled = false;
ClientDetailGroupBox.Visible = true;
ConfirmButton.Visible = true;
ConfirmButton.Enabled = true;
int Number = 0;
string temp;
//Random 6 character Transaction ID is generated.
temp = RandomGenerate(Number).ToString();
ClientDetailGroupBox.Visible = true;
Email = ClientMailIdTextBox.Text;
if (InvestedAmount <= 250000)
{
//Stores the value according to the above if condition.
switch (TimeFrameListBox.SelectedIndex)
{
case 0:
Term = TIMEFRAME1;
InterestRate = LINTERESTRATE1;
FinalAmount = EndAmount1;
break;
case 1:
Term = TIMEFRAME2;
InterestRate = LINTERESTRATE2;
FinalAmount = EndAmount2;
break;
case 2:
Term = TIMEFRAME3;
InterestRate = LINTERESTRATE3;
FinalAmount = EndAmount3;
break;
case 3:
Term = TIMEFRAME4;
InterestRate = LINTERESTRATE4;
FinalAmount = EndAmount4;
break;
}
}
else
{
switch (TimeFrameListBox.SelectedIndex)
{
case 0:
Term = TIMEFRAME1;
InterestRate = GINTERESTRATE1;
FinalAmount = EndAmount1;
break;
case 1:
Term = TIMEFRAME2;
InterestRate = GINTERESTRATE2;
FinalAmount = EndAmount2;
break;
case 2:
Term = TIMEFRAME3;
InterestRate = GINTERESTRATE3;
FinalAmount = EndAmount3;
break;
case 3:
Term = TIMEFRAME4;
InterestRate = GINTERESTRATE4;
FinalAmount = EndAmount4;
break;
}
}
//Checks if the file exists already.
if (File.Exists("InvestMeTransactionDetails.txt"))
{
//Reads the file and Checks if the transaction ID is unique or not.
StreamReader InvestMeFile;
InvestMeFile = File.OpenText("InvestMeTransactionDetails.txt");
while (!InvestMeFile.EndOfStream)
{
InvestMeFile.ReadLine();
string x = InvestMeFile.ReadLine();
InvestMeFile.ReadLine();
InvestMeFile.ReadLine();
InvestMeFile.ReadLine();
string TempInterestRate = InvestMeFile.ReadLine();
string TempFinalAmount = InvestMeFile.ReadLine();
//If transaction ID exists meathod is called again to generate another ID;
if (x == temp)
{
temp = RandomGenerate(Number).ToString();
}
}
TransactionNoDisplayLabel.Text = temp;
InvestMeFile.Close();
}
//If file doesnt exists it will just create a file for future use.
else
{
int TransactionNo = RandomGenerate(Number);
ClientDetailGroupBox.Visible = true;
TransactionNoDisplayLabel.Text = TransactionNo.ToString();
StreamWriter InvestMeFile;
InvestMeFile = File.CreateText("InvestMeTransactionDetails.txt");
}
ClientNameTextBox.Clear();
ClientMailIdTextBox.Clear();
ClientTelNoTextBox.Clear();
ClientNameTextBox.Focus();
}
