怎么在DataGridView中动态添加DateTimePicker列?

using System;
using System.Windows.Forms;

namespace MasterSoft.WinUI
{
    ///<summary>
    /// DataGridView 中的日历列
    ///</summary>
    ///<example >
    /// DataGridViewCalendarColumn ordBillSubConsignmentDateDataGridViewCalendarColumn = new DataGridViewCalendarColumn();
    /// ordBillSubConsignmentDateDataGridViewCalendarColumn .DataPropertyName = myOrdBillDataSet.OrdBillSub.OrdBillSubConsignmentDateColumn.ColumnName;
    /// ordBillSubConsignmentDateDataGridViewCalendarColumn .HeaderText = "需求日期";
    ///</example>
    publicclass MDataGridViewCalendarColumn : DataGridViewColumn
    {
        public MDataGridViewCalendarColumn()
            : base(new CalendarCell())
        {
        }

        publicoverride DataGridViewCell CellTemplate
        {
            get
            {
                returnbase.CellTemplate;
            }
            set
            {
                // Ensure that the cell used for the template is a CalendarCell.
                if (value !=null&&
                    !value.GetType().IsAssignableFrom(typeof(CalendarCell)))
                {
                    thrownew InvalidCastException("Must be a CalendarCell");
                }
                base.CellTemplate = value;
            }
        }
    }
    ///<summary>
    /// DataGridView 中的日历格
    ///</summary>
    publicclass CalendarCell : DataGridViewTextBoxCell
    {

        public CalendarCell()
            : base()
        {
            // Use the short date format.
            this.Style.Format ="d";
        }

        publicoverridevoid InitializeEditingControl(int rowIndex, object
            initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
        {
            // Set the value of the editing control to the current cell value.
            base.InitializeEditingControl(rowIndex, initialFormattedValue,
                dataGridViewCellStyle);
            CalendarEditingControl ctl =
                DataGridView.EditingControl as CalendarEditingControl;
            try
            {
                ctl.Value = (DateTime)this.Value;
            }
            catch (Exception)
            {
                ctl.Value = DateTime.Now;
            }
        }

        publicoverride Type EditType
        {
            get
            {
                // Return the type of the editing contol that CalendarCell uses.
                returntypeof(CalendarEditingControl);
            }
        }

        publicoverride Type ValueType
        {
            get
            {
                // Return the type of the value that CalendarCell contains.
                returntypeof(DateTime);
            }
        }

        publicoverrideobject DefaultNewRowValue
        {
            get
            {
                // Use the current date and time as the default value.
                returnnull;
            }
        }
    }

    class CalendarEditingControl : DateTimePicker, IDataGridViewEditingControl
    {
        DataGridView dataGridView;
        privatebool valueChanged =false;
        int rowIndex;

        public CalendarEditingControl()
        {
            this.Format = DateTimePickerFormat.Short;
        }

        // Implements the IDataGridViewEditingControl.EditingControlFormattedValue
        // property.
        publicobject EditingControlFormattedValue
        {
            get
            {
                returnthis.Value.ToShortDateString();
            }
            set
            {
                String newValue = value as String;
                if (newValue !=null)
                {
                    this.Value = DateTime.Parse(newValue);
                }
            }
        }

        // Implements the
        // IDataGridViewEditingControl.GetEditingControlFormattedValue method.
        publicobject GetEditingControlFormattedValue(
            DataGridViewDataErrorContexts context)
        {
            return EditingControlFormattedValue;
        }

        // Implements the
        // IDataGridViewEditingControl.ApplyCellStyleToEditingControl method.
        publicvoid ApplyCellStyleToEditingControl(
            DataGridViewCellStyle dataGridViewCellStyle)
        {
            this.Font = dataGridViewCellStyle.Font;
            this.CalendarForeColor = dataGridViewCellStyle.ForeColor;
            this.CalendarMonthBackground = dataGridViewCellStyle.BackColor;
        }

        // Implements the IDataGridViewEditingControl.EditingControlRowIndex
        // property.
        publicint EditingControlRowIndex
        {
            get
            {
                return rowIndex;
            }
            set
            {
                rowIndex = value;
            }
        }

        // Implements the IDataGridViewEditingControl.EditingControlWantsInputKey
        // method.
        publicbool EditingControlWantsInputKey(
            Keys key, bool dataGridViewWantsInputKey)
        {
            // Let the DateTimePicker handle the keys listed.
            switch (key & Keys.KeyCode)
            {
                case Keys.Left:
                case Keys.Up:
                case Keys.Down:
                case Keys.Right:
                case Keys.Home:
                case Keys.End:
                case Keys.PageDown:
                case Keys.PageUp:
                    returntrue;
                default:
                    returnfalse;
            }
        }

        // Implements the IDataGridViewEditingControl.PrepareEditingControlForEdit
        // method.
        publicvoid PrepareEditingControlForEdit(bool selectAll)
        {
            // No preparation needs to be done.
        }

        // Implements the IDataGridViewEditingControl
        // .RepositionEditingControlOnValueChange property.
        publicbool RepositionEditingControlOnValueChange
        {
            get
            {
                returnfalse;
            }
        }

        // Implements the IDataGridViewEditingControl
        // .EditingControlDataGridView property.
        public DataGridView EditingControlDataGridView
        {
            get
            {
                return dataGridView;
            }
            set
            {
                dataGridView = value;
            }
        }

        // Implements the IDataGridViewEditingControl
        // .EditingControlValueChanged property.
        publicbool EditingControlValueChanged
        {
            get
            {
                return valueChanged;
            }
            set
            {
                valueChanged = value;
            }
        }

        // Implements the IDataGridViewEditingControl
        // .EditingPanelCursor property.
        public Cursor EditingPanelCursor
        {
            get
            {
                returnbase.Cursor;
            }
        }

        protectedoverridevoid OnValueChanged(EventArgs eventargs)
        {
            // Notify the DataGridView that the contents of the cell
            // have changed.
            valueChanged =true;
            this.EditingControlDataGridView.NotifyCurrentCellDirty(true);
            base.OnValueChanged(eventargs);
        }
    }
}

MDataGridViewCalendarColumn mdc = new MDataGridViewCalendarColumn();
DataGridView dgv = new DataGridView();
dgv.Columns.Add(mdc);