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);