using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;
namespace Mesoft.Control
{ public class CalendarColumn : DataGridViewColumn
{ public CalendarColumn() : base(new CalendarCell())
{ }
public override DataGridViewCell CellTemplate
{ get
{ return base.CellTemplate;
}
set
{ if (value != null && !value.GetType().IsAssignableFrom(typeof(CalendarCell)))
{ throw new InvalidCastException("Must be a CalendarCell"); }
base.CellTemplate = value;
}
}
}
public class CalendarCell : DataGridViewTextBoxCell
{ public CalendarCell(): base()
{ this.Style.Format = "d";
}
public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
{ base.InitializeEditingControl(rowIndex, initialFormattedValue,
dataGridViewCellStyle);
CalendarEditingControl ctl =
DataGridView.EditingControl as CalendarEditingControl;
ctl.Value = (DateTime)this.Value;
}
public override Type EditType
{ get
{ return typeof(CalendarEditingControl);
}
}
public override Type ValueType
{ get
{ return typeof(DateTime);
}
}
public override object DefaultNewRowValue
{ get
{ return DateTime.Now;
}
}
}
class CalendarEditingControl : DateTimePicker, IDataGridViewEditingControl
{ DataGridView dataGridView;
private bool valueChanged = false;
int rowIndex;
public CalendarEditingControl()
{ this.Format = DateTimePickerFormat.Short;
}
[Category("Mesoft")] public object EditingControlFormattedValue
{ get
{ return this.Value.ToShortDateString();
}
set
{ if (value is String)
{ this.Value = DateTime.Parse((String)value);
}
}
}
public object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context)
{ return EditingControlFormattedValue;
}
public void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle)
{ this.Font = dataGridViewCellStyle.Font;
this.CalendarForeColor = dataGridViewCellStyle.ForeColor;
this.CalendarMonthBackground = dataGridViewCellStyle.BackColor;
}
[Category("Mesoft")] public int EditingControlRowIndex
{ get
{ return rowIndex;
}
set
{ rowIndex = value;
}
}
public bool EditingControlWantsInputKey(Keys key, bool dataGridViewWantsInputKey)
{ 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;
}
}
public void PrepareEditingControlForEdit(bool selectAll)
{ }
[Category("Mesoft")] public bool RepositionEditingControlOnValueChange
{ get
{ return false;
}
}
[Category("Mesoft")] public DataGridView EditingControlDataGridView
{ get
{ return dataGridView;
}
set
{ dataGridView = value;
}
}
[Category("Mesoft")] public bool EditingControlValueChanged
{ get
{ return valueChanged;
}
set
{ valueChanged = value;
}
}
[Category("Mesoft")] public Cursor EditingPanelCursor
{ get
{ return base.Cursor;
}
}
protected override void OnValueChanged(EventArgs eventargs)
{ valueChanged = true;
this.EditingControlDataGridView.NotifyCurrentCellDirty(true);
base.OnValueChanged(eventargs);
}
}
}
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