Using ComboBox Lab Assignment

April 14, 2014 (Monday)

namespace ZauBawk_ComboBox_LabAssignment
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string[] sNames = { "Zau", "David", "Grace", "Joe", "Mary", };
            cboStudents.Items.AddRange(sNames);
            cboStudents.Text = "Select a Student Name";
        }


        private string[] Selecting(int index)
        {
            string[] arr = null;
            switch (index)
            {
                case 0: arr = new[] { "Math: 99", "Eng: 56", "BUSS: 94", "Art: 67", "CSI-152: 64", "Database: 85", "Web Graphic: 89" }; break;
                case 1: arr = new[] { "Math: 99", "Eng: 84", "BUSS: 56", "Art: 67", "CSI-152: 78", "Database: 45", "Web Graphic: 76" }; break;
                case 2: arr = new[] { "Math: 98", "Eng: 34", "BUSS: 98", "Art: 56", "CSI-152: 55", "Database: 65", "Web Graphic: 56" }; break;
                case 3: arr = new[] { "Math: 97", "Eng: 78", "BUSS: 76", "Art: 67", "CSI-152: 34", "Database: 45", "Web Graphic: 56" }; break;
                case 4: arr = new[] { "Math: 88", "Eng: 84", "BUSS: 56", "Art: 45", "CSI-152: 56", "Database: 85", "Web Graphic: 89" }; break;
                default: arr = null; break;//no correct index;
            }
            return arr;
        }

        private void cboStudents_SelectedIndexChanged(object sender, EventArgs e)
        {
            cboGrades.Items.Clear();
            cboGrades.Items.AddRange(Selecting(cboStudents.SelectedIndex));
        }
    }
}