public event EventHandler<CalendarCellPositionChangingEventArgs> CurrentCellPositionChanging

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
using GrapeCity.Win.CalendarGrid;

namespace CalendarGridSampleCode
{
    public class EditingDemo : Form
    {
        private GcCalendarGrid gcCalendarGrid = new GcCalendarGrid();
        
        public EditingDemo()
        {
            this.Text = "Editing Demo";
            this.Size = new Size(800, 700);
            this.StartPosition = FormStartPosition.CenterScreen;

            gcCalendarGrid.Template = this.CreateTemplate();

            gcCalendarGrid.CellContentButtonClick += gcCalendarGrid_CellContentButtonClick;
            gcCalendarGrid.CellEditingValueChanged += gcCalendarGrid_CellEditingValueChanged;
            gcCalendarGrid.CellBeginEdit += gcCalendarGrid_CellBeginEdit;
            gcCalendarGrid.CellEndEdit += gcCalendarGrid_CellEndEdit;
            gcCalendarGrid.CurrentCellPositionChanging += gcCalendarGrid_CurrentCellPositionChanging;

            this.Load += EditingDemo_Load;
            // Add GcCalendarGrid to form
            this.gcCalendarGrid.Dock = DockStyle.Fill;
            this.Controls.Add(this.gcCalendarGrid);
        }

        void gcCalendarGrid_CellEditingValueChanged(object sender, CalendarCellEditingValueChangedEventArgs e)
        {
            //This is a CheckBoxCell
            if (e.CellPosition.Scope == CalendarTableScope.Content && e.CellPosition.RowIndex == 2 && e.CellPosition.ColumnIndex == 1)
            {
                if (object.Equals(e.Value, true))
                {
                    this.gcCalendarGrid[e.CellPosition.Date][2, 0].Value = "True";
                    this.gcCalendarGrid[e.CellPosition.Date][2, 0].CellStyle.BackColor = Color.Lime;
                }
                else
                {
                    this.gcCalendarGrid[e.CellPosition.Date][2, 0].Value = "False";
                    this.gcCalendarGrid[e.CellPosition.Date][2, 0].CellStyle.BackColor = Color.Red;
                }
            }
        }

        void gcCalendarGrid_CellContentButtonClick(object sender, CalendarCellEventArgs e)
        {
            //This is a button cell
            if (e.CellPosition.Scope == CalendarTableScope.Content && e.CellPosition.RowIndex == 1 && e.CellPosition.ColumnIndex == 1)
            {
                CalendarCellPosition prevCell = new CalendarCellPosition(e.CellPosition.Date, 1, 0);
                this.gcCalendarGrid.BeginEdit(false);
            }
        }

        void gcCalendarGrid_CellBeginEdit(object sender, CalendarCellBeginEditEventArgs e)
        {
            if (GetMessageDeviceType() == MessageDeviceType.Touch 
                && (e.CellPosition.Scope == CalendarTableScope.Content && e.CellPosition.RowIndex == 1 && e.CellPosition.ColumnIndex == 0))
            {
                gcCalendarGrid.ShowTouchKeyboard();
            }
        }

        void gcCalendarGrid_CellEndEdit(object sender, CalendarCellEndEditEventArgs e)
        {
            gcCalendarGrid.HideTouchKeyboard();
        }

        void gcCalendarGrid_CurrentCellPositionChanging(object sender, CalendarCellPositionChangingEventArgs e)
        {
            if (e.NewCellPosition.Scope == CalendarTableScope.Content && e.NewCellPosition.RowIndex == 1 && e.NewCellPosition.ColumnIndex == 1)
            {
                e.NewCellPosition = new CalendarCellPosition(e.NewCellPosition.Date, 1, 0);
            }
        }

        void EditingDemo_Load(object sender, EventArgs e)
        {
            for (int i = 0; i < this.gcCalendarGrid.LayoutSettings.HorizontalLayoutInfo.Count; i++)
            {
                this.gcCalendarGrid.LayoutSettings.PerformHorizontalAutoFit(i);
            }
        }

        private CalendarTemplate CreateTemplate()
        {
            GrapeCity.Win.CalendarGrid.CalendarTemplate calendarTemplate1 = new GrapeCity.Win.CalendarGrid.CalendarTemplate();
            GrapeCity.Win.CalendarGrid.CalendarHeaderCellType calendarHeaderCellType1 = new GrapeCity.Win.CalendarGrid.CalendarHeaderCellType();
            GrapeCity.Win.CalendarGrid.CalendarHeaderCellType calendarHeaderCellType2 = new GrapeCity.Win.CalendarGrid.CalendarHeaderCellType();
            GrapeCity.Win.CalendarGrid.CalendarButtonCellType calendarButtonCellType1 = new GrapeCity.Win.CalendarGrid.CalendarButtonCellType();
            GrapeCity.Win.CalendarGrid.CalendarCheckBoxCellType calendarCheckBoxCellType1 = new GrapeCity.Win.CalendarGrid.CalendarCheckBoxCellType();

            calendarTemplate1.ColumnCount = 2;
            calendarTemplate1.RowCount = 3;
            calendarTemplate1.RowHeaderColumnCount = 0;
            calendarTemplate1.ColumnHeader.CellStyleName = "defaultStyle";
            calendarHeaderCellType1.SupportLocalization = true;
            calendarTemplate1.ColumnHeader.GetCell(0, 0).CellType = calendarHeaderCellType1;
            calendarTemplate1.ColumnHeader.GetCell(0, 0).DateFormat = "{DayOfWeek}";
            calendarTemplate1.ColumnHeader.GetCell(0, 0).RowSpan = 1;
            calendarTemplate1.ColumnHeader.GetCell(0, 0).ColumnSpan = 2;
            calendarTemplate1.ColumnHeader.GetCell(0, 0).CellStyle.Alignment = GrapeCity.Win.CalendarGrid.CalendarGridContentAlignment.MiddleCenter;
            calendarHeaderCellType2.SupportLocalization = true;
            calendarTemplate1.ColumnHeader.GetCell(0, 1).CellType = calendarHeaderCellType2;
            calendarTemplate1.Content.CellStyleName = "defaultStyle";
            calendarTemplate1.Content.GetColumn(1).Width = 145;
            calendarTemplate1.Content.GetRow(1).Height = 28;
            calendarTemplate1.Content.GetRow(2).Height = 28;
            calendarTemplate1.Content.GetCell(0, 0).DateFormat = "d日";
            calendarTemplate1.Content.GetCell(0, 0).DateFormatType = GrapeCity.Win.CalendarGrid.CalendarDateFormatType.DotNet;
            calendarTemplate1.Content.GetCell(0, 0).RowSpan = 1;
            calendarTemplate1.Content.GetCell(0, 0).ColumnSpan = 2;
            calendarButtonCellType1.SupportLocalization = true;
            calendarTemplate1.Content.GetCell(1, 1).CellType = calendarButtonCellType1;
            calendarTemplate1.Content.GetCell(1, 1).Value = "Click/Tap To Edit Cell";
            calendarTemplate1.Content.GetCell(1, 1).CellStyle.Alignment = GrapeCity.Win.CalendarGrid.CalendarGridContentAlignment.MiddleCenter;
            calendarCheckBoxCellType1.SupportLocalization = true;
            calendarTemplate1.Content.GetCell(2, 1).CellType = calendarCheckBoxCellType1;

            return calendarTemplate1;
        }
        // Mouse event is from touch or not.
        [DllImport("user32.dll")]
        private static extern uint GetMessageExtraInfo();

        private static MessageDeviceType GetMessageDeviceType()
        {
            uint extra = GetMessageExtraInfo();
            if ((extra & 0xFF515780) == 0xFF515780)
            {
                return MessageDeviceType.Touch;
            }
            else if ((extra & 0xFF515700) == 0xFF515700)
            {
                return MessageDeviceType.Pen;
            }
            else
            {
                return MessageDeviceType.Mouse;
            }
        }

        internal enum MessageDeviceType
        {
            Mouse,
            Touch,
            Pen
        }

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