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);