001.using System;
002.using System.Collections.Generic;
003.using System.Linq;
004.using System.Text;
005.using System.Threading.Tasks;
006.using System.Windows.Forms;
007.
008.namespace DateTimeColumn
009.{
010. #region _GridDateControl
011. public class GridDateControl : DataGridViewColumn
012. {
013.
014. public GridDateControl()
015. : base(new CalendarCell())
016. {
017. }
018.
019. public override DataGridViewCell CellTemplate
020. {
021. get { return base.CellTemplate; }
022.
023. set
024. {
025.
026. if ((value != null) && !value.GetType().IsAssignableFrom(typeof(CalendarCell)))
027. {
028. throw new InvalidCastException("Must be a CalendarCell");
029. }
030. base.CellTemplate = value;
031.
032. }
033. }
034.
035. }
036.
037. public class CalendarCell : DataGridViewTextBoxCell
038. {
039.
040. public CalendarCell()
041. {
042.
043. }
044.
045. public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
046. {
047.
048. base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle);
049.
050. CalendarEditingControl ctl = (CalendarEditingControl)DataGridView.EditingControl;
051. if ((!object.ReferenceEquals(this.Value, DBNull.Value)))
052. {
053. if ((this.Value != null))
054. {
055. ctl.Value = (DateTime)this.Value;
056. }
057. }
058. }
059.
060. public override Type EditType
061. {
062.
063. get { return typeof(CalendarEditingControl); }
064. }
065.
066. public override Type ValueType
067. {
068.
069. get { return typeof(DateTime); }
070. }
071. }
072.
073. class CalendarEditingControl : DateTimePicker, IDataGridViewEditingControl
074. {
075.
076. private DataGridView dataGridViewControl;
077. private bool valueIsChanged = false;
078. private int rowIndexNum;
079. public CalendarEditingControl()
080. {
081. this.Format = DateTimePickerFormat.Short;
082. }
083.
084. public object EditingControlFormattedValue
085. {
086. get { return this.Value.ToShortDateString(); }
087. set
088. {
089. if (value is String)
090. {
091. this.Value = DateTime.Parse(Convert.ToString(value));
092. }
093. }
094. }
095.
096.
097. public object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context)
098. {
099.
100. return this.Value.ToShortDateString();
101.
102. }
103.
104.
105. public void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle)
106. {
107. this.Font = dataGridViewCellStyle.Font;
108. this.CalendarForeColor = dataGridViewCellStyle.ForeColor;
109. this.CalendarMonthBackground = dataGridViewCellStyle.BackColor;
110.
111. }
112.
113. public int EditingControlRowIndex
114. {
115.
116. get { return rowIndexNum; }
117. set { rowIndexNum = value; }
118. }
119.
120.
121. public bool EditingControlWantsInputKey(Keys key, bool dataGridViewWantsInputKey)
122. {
123.
124.
125. switch (key & Keys.KeyCode)
126. {
127. case Keys.Left:
128. case Keys.Up:
129. case Keys.Down:
130. case Keys.Right:
131. case Keys.Home:
132. case Keys.End:
133. case Keys.PageDown:
134. case Keys.PageUp:
135.
136.
137. return true;
138. default:
139. return false;
140. }
141.
142. }
143.
144.
145. public void PrepareEditingControlForEdit(bool selectAll)
146. {
147.
148.
149. }
150.
151. public bool RepositionEditingControlOnValueChange
152. {
153.
154. get { return false; }
155. }
156.
157.
158. public DataGridView EditingControlDataGridView
159. {
160.
161. get { return dataGridViewControl; }
162. set { dataGridViewControl = value; }
163. }
164.
165.
166. public bool EditingControlValueChanged
167. {
168.
169. get { return valueIsChanged; }
170. set { valueIsChanged = value; }
171. }
172. public Cursor EditingControlCursor
173. {
174.
175. get { return base.Cursor; }
176. }
177. Cursor IDataGridViewEditingControl.EditingPanelCursor
178. {
179. get { return EditingControlCursor; }
180. }
181.
182. protected override void OnValueChanged(EventArgs eventargs)
183. {
184.
185. valueIsChanged = true;
186.
187. this.EditingControlDataGridView.NotifyCurrentCellDirty(true);
188. base.OnValueChanged(eventargs);
189. }
190.
191. }
192. #endregion
193.}
