WPF-Radio button and checkbox validation using if statements

Question

Hi i am quite new to programming so the syntax is still very confusing for me.

My problem is I want to add an option when the user checks radio button(warranty) (adding 10% to the subAmount using an if statement.

I am using...

if (threeYearRadioButton.IsChecked == true)

{

threeYearRadioButton = threeYearWarranty;

}

threeYearRadioButton(is the name of the radio button in my xaml code)

double threeYearWarranty = 0.1d; (is the name i have used to define in my cs code)

If the user checks one year there is no charge on top of the subAmount.

If three years is selected then 10% is added on top of the SubAmount and

five years = 20% added on top of the subAmount.

I am having the same issue with checkboxes:

If the user checks "totalWindowTinting", then $150 is added to the subAmount. int totalWindowTinting = 150;

If the user does not check the window tinting box then there will be no additional price added to the SubAmount.

I know i need to use an if statement, but it just comes up with errors wen i start using the ISChecked property.

please help!

Thanks,

James

Akhil Garg · Answer

how you are assigning values to radiobutton?? I think you cant directly assign values to radiobutton use Content property. threeYearRadioButton.Content

James Cooper · Answer

I am having trouble with the if statement for the following variables. And there including the outcomes of the if statements on top of the subAmount. Hope the code helps. private void calculateButton_Click(object sender RoutedEventArgs e) { double oneYearWarranty = 0.0d; double threeYearWarranty = 0.1d; double fiveYearWarranty = 0.2d; int totalWindowTinting = 150; int ducoBodyProtection = 180; int navSystem = 320; int deluxeSoundSystem = 350; try //Outer try block for the first field { vehiclePrice = double.Parse(vehiclePriceTextBox.Text); //Convert text from the textbox to a number of type double try // Inner try block for the second field { lessTradeIn = double.Parse(lessTradeInTextBox.Text); subAmount = vehiclePrice - lessTradeIn; subAmountLabel.Content = subAmount.ToString(C); gstAmount = (vehiclePrice - lessTradeIn) * GST_RATE; gstAmountLabel.Content = gstAmount.ToString(C); finalAmount = subAmount + gstAmount; finalAmountLabel.Content = finalAmount.ToString(C); } catch (FormatException theException) //catch exception to handle format errors { MessageBox.Show(Error! Please enter a valid decimal number.  + theException.Message); Keyboard.Focus(lessTradeInTextBox); lessTradeInTextBox.SelectAll(); } catch (Exception theException) { MessageBox.Show(Error! General transform error.  + theException.Message); Keyboard.Focus(lessTradeInTextBox); lessTradeInTextBox.SelectAll(); } } catch (FormatException theException) //catch exception to handle format errors { MessageBox.Show(Error! Please enter a valid decimal number.  + theException.Message); Keyboard.Focus(vehiclePriceTextBox); vehiclePriceTextBox.SelectAll(); } catch (Exception theException) { MessageBox.Show(Error! General transform error.  + theException.Message); Keyboard.Focus(vehiclePriceTextBox); vehiclePriceTextBox.SelectAll(); } if (oneYearRadioButton.IsChecked.Value) { oneYearRadioButton = oneYearWarranty + subAmount; } else if (threeYearRadioButton.IsChecked.Value) { threeYearRadioButton = threeYearWarranty + subAmount; } else if (fiveYearRadioButton.IsChecked.Value) { fiveYearRadioButton = fiveYearWarranty + subAmount; } else if (totalWindowCheckBox.IsChecked.Value) { totalWindowCheckBox = totalWindowTinting + subAmount; } else if (ducoBodyCheckBox.IsChecked.Value) { ducoBodyCheckBox = ducoBodyProtection + subAmount; } else if (navSystemCheckBox.IsChecked.Value) { navSystemCheckBox = navSystem + subAmount; } else if (deluxeSoundCheckBox.IsChecked.Value) { deluxeSoundCheckBox = deluxeSoundSystem + subAmount; }

Akhil Garg · Answer

Can you send your code? IsChecked should work fine an one more thing dont check for true only this if (threeYearRadioButton.IsChecked) is enough.