private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
MessageBox.Show("Please enter a Currency", "Information", MessageBoxButton.OK, MessageBoxImage.Warning);
txtCurrency.Focus();
return;
}
if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please select currency to ", "Information", MessageBoxButton.OK, MessageBoxImage.Warning);
cmbToCurrency.Focus();
return;
}
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
ConvertedValue = double.Parse(txtCurrency.Text);
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
ConvertedValue = (double.Parse(cmbFromCurrency.SelectedValue.ToString()) *
double.Parse(txtCurrency.Text)) /
double.Parse(cmbToCurrency.SelectedValue.ToString());
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
//Check amount textbox is Null or Blank
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
//If amount textbox is Null or Blank it will show the below message box
MessageBox.Show("Please Enter Currency", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//After clicking on message box OK sets the Focus on amount textbox
txtCurrency.Focus();
return;
}
//Else if the currency from is not selected or it is default text --SELECT--
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
//It will show the message
MessageBox.Show("Please Select Currency From", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//Set focus on From Combobox
cmbFromCurrency.Focus();
return;
}
//Else if Currency To is not Selected or Select Default Text --SELECT--
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
//It will show the message
MessageBox.Show("Please Select Currency To", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//Set focus on To Combobox
cmbToCurrency.Focus();
return;
}
//If From and To Combobox selected values are same
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
//The amount textbox value set in ConvertedValue.
//double.parse is used to convert datatype String To Double.
//Textbox text have string and ConvertedValue is double datatype
ConvertedValue = double.Parse(txtCurrency.Text);
//Show in label converted currency and converted currency name.
// and ToString("N3") is used to place 000 after after the(.)
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
//Calculation for currency converter is From Currency value multiply(*)
// with amount textbox value and then the total is divided(/) with To Currency value
ConvertedValue = (double.Parse(cmbToCurrency.SelectedValue.ToString()) * double.Parse(txtCurrency.Text)) /
double.Parse(cmbFromCurrency.SelectedValue.ToString());
//Show in label converted currency and converted currency name.
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
public string ToString(System.IFormatProvider provider = null)
{
if (provider == null)
{
provider = System.Globalization.CultureInfo.CurrentCulture;
}
return(ConvertedValue.ToString(Format, provider) + " " + UnitName);
}
//Convert the button click event
private void Convert_Click(object sender, RoutedEventArgs e)
{
//Create the variable as ConvertedValue with double datatype to store currency converted value
double ConvertedValue;
//Check if the amount textbox is Null or Blank
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
//If amount textbox is Null or Blank it will show this message box
MessageBox.Show("Please Enter Currency", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//After clicking on messagebox OK set focus on amount textbox
txtCurrency.Focus();
return;
}
//Else if currency From is not selected or select default text --SELECT--
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
//Show the message
MessageBox.Show("Please Select Currency From", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//Set focus on the From Combobox
cmbFromCurrency.Focus();
return;
}
//Else if currency To is not selected or select default text --SELECT--
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
//Show the message
MessageBox.Show("Please Select Currency To", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//Set focus on the To Combobox
cmbToCurrency.Focus();
return;
}
//Check if From and To Combobox selected values are same
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
//Amount textbox value set in ConvertedValue.
//double.parse is used for converting the datatype String To Double.
//Textbox text have string and ConvertedValue is double Datatype
ConvertedValue = double.Parse(txtCurrency.Text);
//Show the label converted currency and converted currency name and ToString("N3") is used to place 000 after the dot(.)
//3 places of decimal point precision.
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
//Calculation for currency converter is From Currency value multiply(*)
//With the amount textbox value and then that total divided(/) with To Currency value
ConvertedValue = (double.Parse(cmbFromCurrency.SelectedValue.ToString()) * double.Parse(txtCurrency.Text)) / double.Parse(cmbToCurrency.SelectedValue.ToString());
//Show the label converted currency and converted currency name.
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
private void btn_Convert_Click(object sender, EventArgs e)
{
double AmountEntered;
double ConvertedValue;
//checking for null values
if ((rdb_USDollar.Checked == false) || (rdb_JapaneseYen.Checked == false))
{
txt_ConvertAmount.Text = "Select at least one type of currency to convert";
}
try
{
//Convert SGD to US dollar
if (rdb_USDollar.Checked == true)
{
AmountEntered = double.Parse(txt_Amount.Text);
ConvertedValue = AmountEntered * 0.74;
txt_ConvertAmount.Text = ConvertedValue.ToString();
}
}catch(FormatException)
{
txt_Amount.Text = "Invalid Amount Input";
txt_ConvertAmount.Text = "";
}
try
{
if (rdb_JapaneseYen.Checked == true)
{
AmountEntered = double.Parse(txt_Amount.Text);
ConvertedValue = AmountEntered * 81.97;
txt_ConvertAmount.Text = ConvertedValue.ToString();
}
}catch(FormatException)
{
txt_Amount.Text = "Invalid Amount Input";
txt_ConvertAmount.Text = "";
}
try
{
if (rdb_MalaysianRinggit.Checked == true)
{
AmountEntered = double.Parse(txt_Amount.Text);
ConvertedValue = AmountEntered * 81.97;
txt_ConvertAmount.Text = ConvertedValue.ToString();
}
}
catch (FormatException)
{
txt_Amount.Text = "Invalid Amount Input";
txt_ConvertAmount.Text = "";
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
MessageBox.Show("Please Enter the amount", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
txtCurrency.Focus();
return;
}
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please select currency from", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//Set focus on To Combobox
cmbFromCurrency.Focus();
return;
}
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
//It will show the message
MessageBox.Show("Please Select Currency To", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
//Set focus on To Combobox
cmbToCurrency.Focus();
return;
}
//Check if From and To Combobox selected values are same
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
//Amount textbox value set in ConvertedValue.
//double.parse is used for converting the datatype String To Double.
//Textbox text have string and ConvertedValue is double Datatype
ConvertedValue = double.Parse(txtCurrency.Text);
//Show the label converted currency and converted currency name and ToString("N3") is used to place 000 after the dot(.)
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
//Calculation for currency converter is From Currency value multiply(*)
//With the amount textbox value and then that total divided(/) with To Currency value
ConvertedValue = double.Parse(cmbToCurrency.SelectedValue.ToString()) * double.Parse(txtCurrency.Text)
/ double.Parse(cmbFromCurrency.SelectedValue.ToString());
//Show the label converted currency and converted currency name.
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
//Checking if the currency textbox is empty
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
//Error message
MessageBox.Show("Please enter a value: ", "Information", MessageBoxButton.OK);
txtCurrency.Focus();
return;
}
//Checking if the From currency combobox has a value that isn't default
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
//Error message
MessageBox.Show("Pleae enter what currency you're converting from", "Information", MessageBoxButton.OK);
cmbFromCurrency.Focus();
return;
}
//Checking if the To currency combobox has a value that isn't default
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
//Error message
MessageBox.Show("Please enter to what currency you're converting to", "Information", MessageBoxButton.OK);
cmbToCurrency.Focus();
return;
}
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
//Here we convert the value which is a string, to a double
ConvertedValue = double.Parse(txtCurrency.Text);
//Show the label converted currency and the converted currency's name the N3 is added to add 3 zero's after the .
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
//Conversion formula
ConvertedValue = (double.Parse(cmbFromCurrency.SelectedValue.ToString()) *
double.Parse(txtCurrency.Text)) /
double.Parse(cmbToCurrency.SelectedValue.ToString());
//Displaying the end result
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
private void btn_Convert_Click(object sender, EventArgs e)
{
double AmountEntered;
double ConvertedValue;
try
{
AmountEntered = double.Parse(txt_Amount.ToString());
}
catch (FormatException)
{
MessageBox.Show("Please enter numbers only.");
}
//checking for null values
if ((rdb_USD.Checked == false) || (rdb_JPY.Checked == false) || (rdb_MalaysianRinggit.Checked == false))
{
txt_ConvertedAmount.Text = "Select at least one type of currency to convert";
}
//convert SGD to US Dollars
if (rdb_USD.Checked == true)
{
AmountEntered = double.Parse(txt_Amount.Text);
ConvertedValue = AmountEntered * 0.74;
txt_ConvertedAmount.Text = ConvertedValue.ToString();
}
if (rdb_JPY.Checked == true)
{
AmountEntered = double.Parse(txt_Amount.Text);
ConvertedValue = AmountEntered * 81.97f;
txt_ConvertedAmount.Text = ConvertedValue.ToString();
}
if (rdb_MalaysianRinggit.Checked == true)
{
AmountEntered = double.Parse(txt_Amount.Text);
ConvertedValue = AmountEntered * 3.01;
txt_ConvertedAmount.Text = ConvertedValue.ToString();
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
// Check amount textbox is Null or blank
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
MessageBox.Show("Please enter amount", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
txtCurrency.Focus();
return;
}
// Check FROM cmb is selected or not
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please select a currency you want to convert from", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
// Set focus on From cmb
cmbFromCurrency.Focus();
return;
}
// Check To cmb is selected or not
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please select a currency you want to convert to", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
// Set focus on To cmb
cmbToCurrency.Focus();
return;
}
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
ConvertedValue = double.Parse(txtCurrency.Text);
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
ConvertedValue = (double.Parse(cmbToCurrency.SelectedValue.ToString()) * double.Parse(txtCurrency.Text)) / double.Parse(cmbFromCurrency.SelectedValue.ToString());
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
private void Btn_Convert_Click(object sender, EventArgs e)
{
double AmountEntered;
double ConvertedValue;
try
{
if ((Rdb_USDollars.Checked == false) && (Rdb_JapaneseYen.Checked = false) && (Rdb_MalaysianRinggit.Checked = false))
{
MessageBox.Show("Select at least one type of currency to convert");
}
if (Rdb_USDollars.Checked == true)
{
AmountEntered = double.Parse(Txt_Amount.Text);
ConvertedValue = AmountEntered * 0.74;
Txt_Value.Text = ConvertedValue.ToString();
}
if (Rdb_JapaneseYen.Checked == true)
{
AmountEntered = double.Parse(Txt_Amount.Text);
ConvertedValue = AmountEntered * 81.97;
Txt_Value.Text = ConvertedValue.ToString();
}
if (Rdb_MalaysianRinggit.Checked == true)
{
AmountEntered = double.Parse(Txt_Amount.Text);
ConvertedValue = AmountEntered * 3.01;
Txt_Value.Text = ConvertedValue.ToString();
}
}
catch (FormatException)
{
MessageBox.Show("Invalid Input");
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
// store currency converted value
double ConvertedValue;
// check if textbox for amount
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
// if amount is null or blank, return error to user
MessageBox.Show("Please enter a value to convert", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
txtCurrency.Focus();
return;
}
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please select a currency type to convert from.", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
cmbFromCurrency.Focus();
return;
}
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please select a currency to convert to.", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
cmbToCurrency.Focus();
return;
}
// check if from and to comboboxes selected values are the same
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
ConvertedValue = double.Parse(txtCurrency.Text);
// N3 is used to place 3 zeros after '.'
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
ConvertedValue = (double.Parse(cmbFromCurrency.SelectedValue.ToString()) *
double.Parse(txtCurrency.Text)) / double.Parse(cmbToCurrency.SelectedValue.ToString());
// show new currency and converted to name
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
MessageBox.Show("Please Enter Currency", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
txtCurrency.Focus();
return;
}
//Else if currency From is not selected or select default text --SELECT--
else if (cmbFromCurrency.SelectedValue == null || cmbFromCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please Select Currency From", "Information", MessageBoxButton.OK, MessageBoxImage.Information)
cmbFromCurrency.Focus();
return;
}
// Else if currency To is not selected or select default text --SELECT--
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please Select Currency To", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
cmbToCurrency.Focus();
return;
}
//If From and To Combobox selects same value
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
ConvertedValue = double.Parse(txtCurrency.Text);
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N2");
}
else
{
ConvertedValue = (double.Parse(cmbFromCurrency.SelectedValue.ToString()) * double.Parse(txtCurrency.Text)) / double.Parse(cmbToCurrency.SelectedValue.ToString());
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N2");
}
}
private void Convert_Click(object sender, RoutedEventArgs e)
{
double ConvertedValue;
//Check amount textbox is Null or Blank
if (txtCurrency.Text == null || txtCurrency.Text.Trim() == "")
{
MessageBox.Show("Please Enter Currency", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
txtCurrency.Focus();
return;
}
else if (cmbToCurrency.SelectedValue == null || cmbToCurrency.SelectedIndex == 0)
{
MessageBox.Show("Please Select Currency To", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
cmbToCurrency.Focus();
return;
}
if (cmbFromCurrency.Text == cmbToCurrency.Text)
{
ConvertedValue = double.Parse(txtCurrency.Text);
//Show in label converted currency and converted currency name.
// and ToString("N3") is used to place 000 after after the(.)
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
else
{
//Calculation for currency converter is From Currency value multiply(*)
// with amount textbox value and then the total is divided(/) with To Currency value
ConvertedValue = (double.Parse(cmbToCurrency.SelectedValue.ToString()) * double.Parse(txtCurrency.Text)) / double.Parse(cmbFromCurrency.SelectedValue.ToString());
//Show in label converted currency and converted currency name.
lblCurrency.Content = cmbToCurrency.Text + " " + ConvertedValue.ToString("N3");
}
}