Enumerations

April 15, 2014 (Tuesday)

namespace Enumerations
{
    /*
     * With Enumerations you can create your own type.
     */
    public enum BankingTransaction
    {
        Deposit, Withdraw, Transfer
    }



    //the enum values: Deposit, Withdraw, and Transfer are 
    //called the enum constants.

    //The Banking Transaction is now considered a data type
    //by c# (your own data type)
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            richTextBox1.Clear();
            //declare a variable of type Banking Transaction
            BankingTransaction transaction1;
            //assign a value to an enum variable
            transaction1 = BankingTransaction.Deposit;

            BankingTransaction transaction2 = BankingTransaction.Withdraw;
           // BankingTransaction transaction3 = BankingTransaction.Transfer;
            //convert enum constant to a string
            string strTransaction1 = transaction1.ToString();
            //convert enum constant to integer
            //use the (int) cast
            int t1 = (int)transaction1;

            richTextBox1.Text = "string value: " + strTransaction1 + "\n" + "integer value: " + t1 + "\n\n" +
                "string value: " + transaction2.ToString() + "\n" + "integer value: " + (int)transaction2;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //Convert the BankingTransaction enum to a string array
            string[] transactions = Enum.GetNames(typeof(BankingTransaction));
            //load/ populate the combobox with this array
            cboBanking.Items.AddRange(transactions);
            cboBanking.SelectedIndex = 0;

            string[] Days = Enum.GetNames(typeof(DayOfWeek));
            cboDayOfWeek.Items.AddRange(Days);
            cboDayOfWeek.SelectedIndex = 0;

            string[] Color = Enum.GetNames(typeof(ConsoleColor));
            comboBox1.Items.AddRange(Color);
            comboBox1.SelectedIndex = 0;
        }

        private void btnGetSelectedT_Click(object sender, EventArgs e)
        {
            string selTransac = cboBanking.Text;
            //you read the transaction from the combo box as a string type,
            //but most likely you need to convert back to an enum type
            //(BankingTransaction type)
            //Parse the string read the combobox into
            //the BankingTransaction type
            BankingTransaction transaction = (BankingTransaction)Enum.Parse(typeof(BankingTransaction), selTransac);
            richTextBox1.Text = selTransac;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            richTextBox1.Clear();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            richTextBox1.Clear();
            //declare a variable of type DayOfWeek
            DayOfWeek Monday = DayOfWeek.Monday;
            //assign a value to an enum variable

            DayOfWeek Tuesday = DayOfWeek.Tuesday;
            DayOfWeek Wednesday = DayOfWeek.Wednesday;

            //convert enum constant to a string
            string Day = Monday.ToString();
            //convert enum constant to integer
            //use the (int) cast
            int d1 = (int)Monday;

            richTextBox1.Text = "Day: " + Monday + "\n" + "Index value: " + d1 + "\n\n" +
                "Day: " + Tuesday.ToString() + "\n" + "Index value: " + (int)Tuesday + "\n\n" + "Day: " + Wednesday.ToString() + "\n" + "Index Value: "
                + (int)Wednesday;
        }

        private void btnGetSelectedDay_Click(object sender, EventArgs e)
        {
            string Day = cboDayOfWeek.Text;
            DayOfWeek DayOfW = (DayOfWeek)Enum.Parse(typeof(DayOfWeek), Day);
            richTextBox1.Text = Day;

        }

        private void btnColor_Click(object sender, EventArgs e)
        {
            string Color = comboBox1.Text;
            ConsoleColor choosenColor = (ConsoleColor)Enum.Parse(typeof(ConsoleColor), Color);
            richTextBox1.Text = Color;
        }

    }
}
//Lab Assignment
//Complete code for the DayOfWeek enumaration
//Declare/Assign 3 DayOfWeek variables
//Display their string an int values

//and a second combobox and populate it with DayOfWeek enumeration
//Add a button to read the selected day convert it back to its original enum type

//.Net defines a ConsoleColor enumeration 
//Add a third combobox and populate it with all the color values defined in the Consolecolor enum
//Add button to get the selected color and convert it to its original enum type.