DataGridView-添加一列为时间，加入时间控件Calender代码,CSharp代码库,德仔网

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【CSharp】 DataGridView-添加一列为时间，加入时间控件Calender
作者:wang198689jian / 发布于2014/7/2/ 856
在前天DataGridView的编辑列里面，选择列类型ColmnType多了一种类型CalendarColumn，选择后运行

	using System;

	using System.Collections.Generic;

	using System.ComponentModel;

	using System.Data;

	using System.Drawing;

	using System.Linq;

	using System.Text;

	using System.Windows.Forms;

	

	namespace DataGridView时间列

	{

	 public partial class Form1 : Form

	 {

	 public Form1()

	 {

	 InitializeComponent();

	 }

	 public class CalendarColumn : DataGridViewColumn

	 {

	 private bool showUpDown = true;

	 public bool ShowUpDown

	 {

	 get

	 {

	 return showUpDown;

	 }

	 set

	 {

	 showUpDown = value;

	 }

	 }

	 public CalendarColumn()

	 : base(new CalendarCell())

	 {

	 }

	

	 public override DataGridViewCell CellTemplate

	 {

	 get

	 {

	 return base.CellTemplate;

	 }

	 set

	 {

	 // Ensure that the cell used for the template is a CalendarCell.

	 if (value != null &&

	 !value.GetType().IsAssignableFrom(typeof(CalendarCell)))

	 {

	 throw new InvalidCastException("Must be a CalendarCell");

	 }

	 base.CellTemplate = value;

	 }

	 }

	

	 private void InitializeComponent()

	 {

	 }

	 }

	

	 public class CalendarCell : DataGridViewTextBoxCell

	 {

	 public CalendarCell()

	 : base()

	 {

	 // Use the short date format.

	 this.Style.Format ="yyyy-MM-dd";

	 }

	 public override void 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;

	 ctl.Value = (DateTime)this.Value;//此处存在类型强制转换的可能，根据实际情况改造。

	 ctl.Format = DateTimePickerFormat.Custom;

	 ctl.CustomFormat = dataGridViewCellStyle.Format;

	 ctl.ShowUpDown = ((CalendarColumn)this.OwningColumn).ShowUpDown;//此处去掉就是canlender

	 }

	

	 public override Type EditType

	 {

	 get

	 {

	 // Return the type of the editing contol that CalendarCell uses.

	 return typeof(CalendarEditingControl);

	 }

	 }

	 public override Type ValueType

	 {

	 get

	 {

	 // Return the type of the value that CalendarCell contains.

	 return typeof(DateTime);

	 }

	 }

	

	 public override object DefaultNewRowValue

	 {

	 get

	 {

	 // Use the current date and time as the default value.

	 return DateTime.Now;

	 }

	 }

	 }

	

	 class CalendarEditingControl : DateTimePicker, IDataGridViewEditingControl

	 {

	 DataGridView dataGridView;

	 private bool valueChanged = false;

	 int rowIndex;

	

	 public CalendarEditingControl()

	 {

	 //this.ShowUpDown = base.ShowUpDown;

	 }

	 // Implements the IDataGridViewEditingControl.EditingControlFormattedValue

	 // property.

	 public object EditingControlFormattedValue

	 {

	 get

	 {

	 return this.Value.ToLongDateString();

	 }

	 set

	 {

	 String newValue = value as String;

	 if (newValue != null)

	 {

	 this.Value = DateTime.Parse(newValue);

	 }

	 }

	 }

	 // Implements the

	 // IDataGridViewEditingControl.GetEditingControlFormattedValue method.

	 public object GetEditingControlFormattedValue(

	 DataGridViewDataErrorContexts context)

	 {

	 return EditingControlFormattedValue;

	 }

	 // Implements the

	 // IDataGridViewEditingControl.ApplyCellStyleToEditingControl method.

	 public void ApplyCellStyleToEditingControl(

	 DataGridViewCellStyle dataGridViewCellStyle)

	 {

	 this.Font = dataGridViewCellStyle.Font;

	 this.CalendarForeColor = dataGridViewCellStyle.ForeColor;

	 this.CalendarMonthBackground = dataGridViewCellStyle.BackColor;

	 }

	 // Implements the IDataGridViewEditingControl.EditingControlRowIndex

	 // property.

	 public int EditingControlRowIndex

	 {

	 get

	 {

	 return rowIndex;

	 }

	 set

	 {

	 rowIndex = value;

	 }

	 }

	 // Implements the IDataGridViewEditingControl.EditingControlWantsInputKey

	 // method.

	 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;

	 }

	 }

	 // Implements the IDataGridViewEditingControl.PrepareEditingControlForEdit

	 // method.

	 public void PrepareEditingControlForEdit(bool selectAll)

	 {

	 // No preparation needs to be done.

	 }

	

	 // Implements the IDataGridViewEditingControl

	 // .RepositionEditingControlOnValueChange property.

	 public bool RepositionEditingControlOnValueChange

	 {

	 get

	 {

	 return false;

	 }

	 }

	

	 // Implements the IDataGridViewEditingControl

	 // .EditingControlDataGridView property.

	 public DataGridView EditingControlDataGridView

	 {

	 get

	 {

	 return dataGridView;

	 }

	 set

	 {

	 dataGridView = value;

	 }

	 }

	

	 // Implements the IDataGridViewEditingControl

	 // .EditingControlValueChanged property.

	 public bool EditingControlValueChanged

	 {

	 get

	 {

	 return valueChanged;

	 }

	 set

	 {

	 valueChanged = value;

	 }

	 }

	

	 // Implements the IDataGridViewEditingControl

	 // .EditingPanelCursor property.

	 public Cursor EditingPanelCursor

	 {

	 get

	 {

	 return base.Cursor;

	 }

	 }

	

	 protected override void OnValueChanged(EventArgs eventargs)

	 {

	 // Notify the DataGridView that the contents of the cell

	 // have changed.

	 valueChanged = true;

	 this.EditingControlDataGridView.NotifyCurrentCellDirty(true);

	 base.OnValueChanged(eventargs);

	 }

	 }

	 }

	}
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　DataGridView　　Calender　
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