public class PopupCell : Cell 

using System;
using System.Drawing;
using System.Windows.Forms;

namespace GrapeCity.Win.MultiRow.SampleCode
{
    public class PopupCellDemo : Form
    {
        private GcMultiRow gcMultiRow1 = new GcMultiRow();

        public PopupCellDemo()
        {
            this.Text = "PopupCell Demo";
            this.Size = new Size(560, 300);

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

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

        private void Form1_Load(object sender, EventArgs e)
        {
            // create a template with PopupCells.
            PopupCell colorPopupCell = this.CreateColorPopupCell();

            PopupCell customTypePopupCell = this.CreateCustomTypePopupCell();

            PopupCell customButtonAppearancePopupCell = this.CreateCustomButtonAppearancePopupCell();
            
            PopupCell hiddenButtonPopupCell = this.CreateHiddenButtonPopupCell();

            Cell[] popupCells = new Cell[] { colorPopupCell, customTypePopupCell, customButtonAppearancePopupCell, hiddenButtonPopupCell };

            this.gcMultiRow1.Template = Template.CreateGridTemplate(popupCells);

            this.gcMultiRow1.ColumnHeaders[0][0].Value = "Color";
            this.gcMultiRow1.ColumnHeaders[0][1].Value = "Custom Type";
            this.gcMultiRow1.ColumnHeaders[0][2].Value = "Custom Button Appearance";
            this.gcMultiRow1.ColumnHeaders[0][3].Value = "Hidden button";

            FillData();

            this.gcMultiRow1.CellFormatting += new EventHandler<CellFormattingEventArgs>(gcMultiRow1_CellFormatting);
        }

        PopupCell CreateColorPopupCell()
        {
            PopupCell popupCell1 = new PopupCell();

            // Pop up ColorDialog when click button.
            popupCell1.Popup = new ColorDialog();
            // Use ColorDialog's Color property's value as cell's value.
            popupCell1.PopupValueMember = "Color";
            popupCell1.Name = "Color";
            popupCell1.Size = new Size(80, 21);

            return popupCell1;
        }

        void gcMultiRow1_CellFormatting(object sender, CellFormattingEventArgs e)
        {
            if (e.CellName == "Color")
            {
                if (e.Value != null)
                {
                    e.CellStyle.BackColor = (Color)e.Value;
                }
            }
        }

        PopupCell CreateCustomTypePopupCell()
        {
            PopupCell popupCell1 = new PopupCell();

            // Pop up student edit form when click button.
            popupCell1.Popup = new StudentEditForm();
            // Use student edit form's Student property's value as cell's value.
            popupCell1.PopupValueMember = "Student";
            popupCell1.TextBoxReadOnly = true;
            popupCell1.Size = new Size(150, 21);

            return popupCell1;
        }

        class StudentEditForm : Form
        {
            TextBox idTextBox = new TextBox();
            TextBox nameTextBox = new TextBox();

            public StudentEditForm()
            {
                // Initialize student edit form.
                FlowLayoutPanel panel = new FlowLayoutPanel();
                panel.Size = new Size(150, 200);
                Label label1 = new Label();
                label1.Text = "Student ID:";
                Label label2 = new Label();
                label2.Text = "Student Name:";
                Button okButton = new Button();
                okButton.Text = "OK";
                okButton.DialogResult = DialogResult.OK;
                this.AcceptButton = okButton;

                this.Controls.Add(panel);
                panel.Controls.Add(label1);
                panel.Controls.Add(idTextBox);
                panel.Controls.Add(label2);
                panel.Controls.Add(nameTextBox);
                panel.Controls.Add(okButton);
                this.Text = "Student";
            }

            public Student Student
            {
                get 
                {
                    return new Student(idTextBox.Text, nameTextBox.Text);
                }
                set
                {
                    if (value != null)
                    {
                        idTextBox.Text = value.ID;
                        nameTextBox.Text = value.Name;
                    }
                }
            }
        }

        class Student
        {
            public Student(string id1, string name1)
            {
                ID = id1;
                Name = name1;
            }

            public string ID;
            public string Name;

            public override string ToString()
            {
                return "ID:" + ID + "    Name:" + Name;
            }
        }

        PopupCell CreateCustomButtonAppearancePopupCell()
        {
            PopupCell popupCell1 = new PopupCell();

            popupCell1.ButtonForeColor = Color.Red;
            popupCell1.ButtonBackColor = Color.Yellow;
            popupCell1.ButtonFlatStyle = FlatStyle.Flat;
            popupCell1.ButtonFlatAppearance.MouseOverBackColor = Color.Orange;
            popupCell1.Ellipsis = MultiRowEllipsisMode.EllipsisEnd;
            
            popupCell1.Size = new Size(130, 21);

            // Show Font dialog to edit font.
            popupCell1.Popup = new FontDialog();
            popupCell1.PopupValueMember = "Font";

            return popupCell1;
        }

        PopupCell CreateHiddenButtonPopupCell()
        {
            PopupCell popupCell1 = new PopupCell();

            popupCell1.ShowButton = CellButtonVisibility.NotShown;
            popupCell1.Size = new Size(130, 21);

            // Show OpenFileDialog to edit file name.
            popupCell1.Popup = new OpenFileDialog();
            popupCell1.PopupValueMember = "FileName";

            return popupCell1;
        }

        void FillData()
        {
            this.gcMultiRow1.Rows.Add(Color.Orange, new Student("0", "Wedy"));
            this.gcMultiRow1.Rows.Add(Color.Red, new Student("1", "Alice"));
            this.gcMultiRow1.Rows.Add(Color.Blue, new Student("2", "Mark"));
            this.gcMultiRow1.Rows.Add(Color.Yellow, new Student("3", "Gina"));
        }

        [STAThreadAttribute()]
        public static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new PopupCellDemo());
        }
    }
}