public class VirtualModeDemo : Form
    {
        private GcMultiRow gcMultiRow1 = new GcMultiRow();
        private List<Student> userData = new List<Student>();
        private Student uncommitNewStudent = null;
        private Student restoreRow = null;

        public VirtualModeDemo()
        {
            this.Text = "VirtualMode Demo";

            // Add MultiRow to form
            this.gcMultiRow1.Dock = DockStyle.Fill;
            this.Controls.Add(this.gcMultiRow1);

            this.InitializeTemplate();

            this.InitializeData();

            this.Load += new EventHandler(Form1_Load);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Set virtual mode event, manage date using CellValueNeeded, CellValuePushed, etc. events.
            gcMultiRow1.VirtualMode = true;
            gcMultiRow1.CellValueNeeded += new EventHandler<CellValueEventArgs>(gcMultiRow1_CellValueNeeded);
            gcMultiRow1.CellValuePushed += new EventHandler<CellValueEventArgs>(gcMultiRow1_CellValuePushed);
            gcMultiRow1.CancelRowEdit += new EventHandler<QuestionEventArgs>(gcMultiRow1_CancelRowEdit);
            gcMultiRow1.NewRowNeeded += new EventHandler<RowEventArgs>(gcMultiRow1_NewRowNeeded);
            gcMultiRow1.RowEnter += new EventHandler<CellEventArgs>(gcMultiRow1_RowEnter);
            gcMultiRow1.RowsAdded += new EventHandler<RowsAddedEventArgs>(gcMultiRow1_RowsAdded);
            gcMultiRow1.RowsRemoved += new EventHandler<RowsRemovedEventArgs>(gcMultiRow1_RowsRemoved);
        }