DataGridView自定義列樣式--DataGridViewDateTimeColumn

1.編寫DataGridViewDateTimeEditingControl類

public   class  DataGridViewDateTimeEditingControl : DateTimePicker, IDataGridViewEditingControl
    {
         protected   int  rowIndex;
         protected  DataGridView dataGridView;
         protected   bool  valueChanged  =   false ;

         public  DataGridViewDateTimeEditingControl()
        {
        }

         // 重寫基類
         protected   override   void  OnValueChanged(EventArgs e)
        {
             base .OnValueChanged(e);
            NotifyDataGridViewOfValueChange();
        }
         //   當text值發生變化時，通知DataGridView
         private   void  NotifyDataGridViewOfValueChange()
        {
            valueChanged  =   true ;
            dataGridView.NotifyCurrentCellDirty( true );
        }

         #region  IDataGridViewEditingControl接口的實現
         ///   <summary>
         ///  獲取或設置儲存格所在的DataGridView
         ///   </summary>
         public  DataGridView EditingControlDataGridView
        {
             get
            {
                 return  dataGridView;
            }

             set
            {
                dataGridView  =  value;
            }
        }


         ///   <summary>
         ///  獲取或設置儲存格格式化後的值
         ///   </summary>
         public   object  EditingControlFormattedValue
        {
             set
            {
                Text  =  value.ToString();
                NotifyDataGridViewOfValueChange();
            }
             get
            {
                 return   this .Text;
            }

        }

         ///   <summary>
         ///  在Cell被編輯的時候光標顯示
         ///   </summary>
         public  Cursor EditingPanelCursor
        {
             get
            {
                 return  Cursors.IBeam;
            }
        }
         ///   <summary>
         ///  取得或設定值，指出每當值變更時儲存格內容是否需要重新調整位置。
         ///   </summary>
         public   virtual   bool  RepositionEditingControlOnValueChange
        {
             get
            {
                 return   false ;
            }
        }
         ///   <summary>
         ///  取得或設定儲存格所在行
         ///   </summary>
         public   int  EditingControlRowIndex
        {
             get
            {
                 return   this .rowIndex;
            }

             set
            {
                 this .rowIndex  =  value;
            }
        }
         ///   <summary>
         ///  取得或設定值，指出編輯控制項的值是否與裝載儲存格的值不同。
         ///   </summary>
         public   bool  EditingControlValueChanged
        {
             get
            {
                 return  valueChanged;
            }
             set
            {
                 this .valueChanged  =  value;
            }
        }
         ///   <summary>
         ///  擷取儲存格的格式化後的值。
         ///   </summary>
         ///   <param name="context"> 錯誤上下文 </param>
         ///   <returns></returns>
         public   virtual   object  GetEditingControlFormattedValue(DataGridViewDataErrorContexts context)
        {
             return  Text;
        }
         ///   <summary>
         ///  判斷指定的按鍵是否為編輯控制項應該處理的標準輸入按鍵，或是 System.Windows.Forms.DataGridView 應該處理的特殊按鍵。
         ///   </summary>
         ///   <param name="keyData"></param>
         ///   <param name="dataGridViewWantsInputKey"></param>
         ///   <returns></returns>
         public   bool  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:
                     return   true ;
                 default :
                     return   false ;
            }
        }
         ///   <summary>
         ///  準備目前所選的儲存格來編輯。
         ///   </summary>
         ///   <param name="selectAll"></param>
         public   void  PrepareEditingControlForEdit( bool  selectAll)
        {
        }

         ///   <summary>
         ///  變更控制項的使用者介面 (UI)，使其與指定的儲存格樣式一致。
         ///   </summary>
         ///   <param name="dataGridViewCellStyle"></param>
         public   void  ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle)
        {
             this .Font  =  dataGridViewCellStyle.Font;
             this .CalendarForeColor  =  dataGridViewCellStyle.ForeColor;
             this .CalendarMonthBackground  =  dataGridViewCellStyle.BackColor;
        }

         #endregion
    }

 2.編寫DataGridViewDateTimeCell類

public   class  DataGridViewDateTimeCell:DataGridViewTextBoxCell
    {
         private   bool  showUpDown;
         public  DataGridViewDateTimeCell()
        {
        }

         public   override   void  InitializeEditingControl( int  rowIndex,  object  initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
        {
             base .InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle);
            DataGridViewDateTimeEditingControl ctl  =  DataGridView.EditingControl  as  DataGridViewDateTimeEditingControl;

             //
             // 設定DateTimePicker特性
             //
            ctl.Value  =  (DateTime) this .Value;         
            DataGridViewColumn dgvColumn  =   this .OwningColumn;
             if  (dgvColumn  is  DataGridViewDateTimeColumn)
            {
                DataGridViewDateTimeColumn dateTimeColumn  =  dgvColumn  as  DataGridViewDateTimeColumn;
                 //
                 // 設定ShowUpDown
                 //
                ctl.ShowUpDown  =   this .ShowUpDown;
                 //
                 // 設定Format
                 //
                 switch  (dateTimeColumn.DefaultCellStyle.Format)
                {
                     case   " d " :
                        ctl.Format  =  DateTimePickerFormat.Short;
                         break ;
                     case   " D " :
                        ctl.Format  =  DateTimePickerFormat.Long;
                         break ;
                     case   " f " :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =   " yyyy年M月d日 tt hh:mm " ;
                         break ;
                     case   " F " :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =   " yyyy年M月d日 HH:mm:ss " ;
                         break ;
                     case   " g " :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =   " yyyy/MM/dd tt hh:mm " ;
                         break ;
                     case   " G " :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =   " yyyy/MM/dd HH:mm:ss " ;
                         break ;
                     case   " t " :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =   " tt hh:mm " ;
                         break ;  
                     case   " T " :
                        ctl.Format  =  DateTimePickerFormat.Time;
                        ctl.CustomFormat  =   " HH:mm:ss " ;
                         break ;
                     case   " M " :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =   " M月d日 " ;
                         break ;
                     default :
                        ctl.Format  =  DateTimePickerFormat.Custom;
                        ctl.CustomFormat  =  dateTimeColumn.DefaultCellStyle.Format;
                         break ;

                }

            }
        }
         // 一個自定義屬性
         public   virtual   bool  ShowUpDown
        {
             get
            {
                 return   this .showUpDown;
            }
             set
            {
                 this .showUpDown  =  value;
            }
        }
         public   override  Type EditType
        {
             get
            {
                 return   typeof (DataGridViewDateTimeEditingControl);
            }
        }

         public   override  Type ValueType
        {
             get
            {
                 return   typeof (DateTime);
            }
        }

         public   override   object  DefaultNewRowValue
        {
             get
            {
                 return  DateTime.Now;
            }
        }
    }

3.編寫DataGridViewDateTimeColumn類

public   class  DataGridViewDateTimeColumn : DataGridViewColumn
    {
         private    bool  showUpDown ;
         public  DataGridViewDateTimeColumn() :  base ( new  DataGridViewDateTimeCell())
        {

        }
         public   override  DataGridViewCell CellTemplate
        {
             get
            {
                 return   base .CellTemplate;
            }
             set
            {
                 if  (value  !=   null   &&   ! value.GetType().IsAssignableFrom( typeof (DataGridViewDateTimeCell)))
                {
                     throw   new  InvalidCastException( " 不是DataGridViewDateTimeCell " );
                }
                 base .CellTemplate  =  value;
            }
        }

         // 要實現自定義屬性設計時的保存必須同時重寫Clone方法
         public   override   object  Clone()
        {
            DataGridViewDateTimeColumn col  =  (DataGridViewDateTimeColumn) base .Clone();
            col.ShowUpDown  =   this .showUpDown;
             return  col;
        }

         // 自定義的屬性
         public    bool  ShowUpDown
        {
             get
            {
                 return  showUpDown;
            }
             set
            {
                 if  ( this .showUpDown  !=  value)
                {
                     this .showUpDown  =  value;
                    DataGridViewDateTimeCell dateTimeCell  =  (DataGridViewDateTimeCell) this .CellTemplate;
                    dateTimeCell.ShowUpDown  =  value;
                     if  ( this .DataGridView  !=   null   &&   this .DataGridView.Rows  !=   null )
                    {
                         int  rowCount  =   this .DataGridView.Rows.Count;
                         for  ( int  x  =   0 ; x  <  rowCount; x ++ )
                        {
                            DataGridViewCell dataGridViewCell  =   this .DataGridView.Rows.SharedRow(x).Cells[x];
                             if  (dataGridViewCell  is  DataGridViewDateTimeCell)
                            {
                                dateTimeCell  =  (DataGridViewDateTimeCell)dataGridViewCell;
                                dateTimeCell.ShowUpDown  = value;
                            }
                        }
                    }
                }

            }
        }