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);
DataGridViewDateTimePickerEditingControl ctl =
DataGridView.EditingControl as DataGridViewDateTimePickerEditingControl;
try
{
ctl.Value = (DateTime)this.Value;
}
catch (ArgumentOutOfRangeException oorEx)
{
ctl.Value = System.DateTime.Now;
}
catch (NullReferenceException nullEx)
{
ctl.Value = System.DateTime.Now;
}
DataGridViewDateTimePickerColumn owningCol = this.OwningColumn as DataGridViewDateTimePickerColumn;
if (owningCol != null)
{
ctl.Format = owningCol.Format;
ctl.CustomFormat = owningCol.CustomFormat;
ctl.ShowUpDown = owningCol.ShowUpDown;
}
}
protected override object GetFormattedValue(object value, int rowIndex, ref DataGridViewCellStyle cellStyle, TypeConverter valueTypeConverter, TypeConverter formattedValueTypeConverter, DataGridViewDataErrorContexts context)
{
// 设置显示的时间和日期格式
if (this.RowIndex < 0 || this.DataGridView.Rows[this.RowIndex].IsNewRow)
{
return(string.Empty);
}
DataGridViewDateTimePickerColumn owningCol = this.OwningColumn as DataGridViewDateTimePickerColumn;
if (owningCol != null)
{
switch (owningCol.Format)
{
case DateTimePickerFormat.Custom:
this.Style.Format = owningCol.CustomFormat;
break;
case DateTimePickerFormat.Long:
this.Style.Format = "D";
break;
case DateTimePickerFormat.Short:
this.Style.Format = "d";
break;
case DateTimePickerFormat.Time:
this.Style.Format = "T";
break;
}
}
return(base.GetFormattedValue(value, rowIndex, ref cellStyle, valueTypeConverter, formattedValueTypeConverter, context));
}
public override object Clone()
{
DataGridViewDateTimePickerColumn colClone = base.Clone() as DataGridViewDateTimePickerColumn;
colClone.Format = _format;
colClone.CustomFormat = _customFormat;
colClone.ShowUpDown = _showUpDown;
return(colClone);
}