C# question for VS 2015. How to implement if else if

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I am making a simple program that is a class assignment. I cannot figure out how to wrap up the code.

What I have tried:

C#

public partial class frmPetClinic : Form
    {

 public frmPetClinic()
        {
            InitializeComponent();

            // Delcare varibles.

            Boolean bolFleaTreatment;
            Boolean bolHairTrim;
            Boolean bolNailTrim;
            Boolean bolDematting;
            Boolean bolHeartwormTreatmen;
            Boolean bolHepatitisVaccine;
            Boolean bolDistemperVaccine;
            Boolean bolRabiesVaccine;

            double dblCost;

            bolFleaTreatment = chkFleaTreatment.Checked;
            bolHairTrim = chkHairTrim.Checked;
            bolNailTrim = chkNailTrim.Checked;
            bolDematting = chkDematting.Checked;
            bolHeartwormTreatmen = chkHeartwormTreatment.Checked;
            bolHepatitisVaccine = chkHepatitisVaccine.Checked;
            bolDistemperVaccine = chkDistemperVaccine.Checked;
            bolRabiesVaccine = chkRabiesVaccine.Checked;

            dblCost = 0;

        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            //Exit the app.

            Application.Exit();
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            //Clear selected checkboxes.
            //Clear running total.

            chkFleaTreatment.Checked = false;
            chkHairTrim.Checked = false;
            chkNailTrim.Checked = false;
            chkDematting.Checked = false;
            chkHeartwormTreatment.Checked = false;
            chkHepatitisVaccine.Checked = false;
            chkDistemperVaccine.Checked = false;
            chkRabiesVaccine.Checked = false;

            lblCost.Text = string.Empty;
        }

        private void chkFleaTreatment_CheckedChanged(object sender, EventArgs e)
        {

            // Decide which if any checkboxes are checked.
            // Add total costs and convert to currency

            // If box is unchecked, deduct price from cost
            if
                (true)

                
            else
                
        }
          

    }
        
}

Posted 12-Mar-17 15:25pm

Member 13054756

Updated 12-Mar-17 16:05pm

Bryian Tan

v2

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Bryian Tan · Answer 1 · 2017-03-12T16:05:00

based on the code you presented something like this should do the trick. Once you get everything working, then think of how to improve it, or make it shorter.

C#

public partial class frmPetClinic : Form
    {
double currentTotal = 0;
        double fleaTreatment = 112.5;
        double hairTrim = 88;
        System.Globalization.NumberStyles style =   System.Globalization.NumberStyles.Number | 
                                                    System.Globalization.NumberStyles.AllowCurrencySymbol;
        System.Globalization.CultureInfo culture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

        private void chkFleaTreatment_CheckedChanged(object sender, EventArgs e)
        {
            
            double.TryParse(lblCost.Text, style, culture, out currentTotal);

            if (chkFleaTreatment.Checked)
            {
                lblCost.Text = Math.Round(currentTotal + fleaTreatment, 2).ToString("C2");
            }
            else
            {
                lblCost.Text = Math.Round(currentTotal - fleaTreatment, 2).ToString("C2");
            }
        }

        private void chkHairTrim_CheckedChanged(object sender, EventArgs e)
        {
            double.TryParse(lblCost.Text, style, culture, out currentTotal);

            if (chkHairTrim.Checked)
            {
                lblCost.Text = Math.Round(currentTotal + hairTrim, 2).ToString("C2");
            }
            else
            {
                lblCost.Text = Math.Round(currentTotal - hairTrim, 2).ToString("C2");
            }
        }

//private void chkNailTrim_CheckedChanged(object sender, EventArgs e)
//...

}