private DateSelector GenerateDateSelector(bool isEditing, DataGridCell cell)
{
DateSelector dateSelector = (cell != null) ? (cell.Content as DateSelector) : null;
if (dateSelector == null)
{
dateSelector = new DateSelector();
}
dateSelector.ConsumerFontSize = 13;
dateSelector.InputTextWidth = 15;
dateSelector.HorizontalAlignment = HorizontalAlignment.Center;
ApplyBinding(dateSelector, DateSelector.SelectedDateProperty);
ApplyBinding(dateSelector, DateSelector.CommandProperty);
ApplyBinding(dateSelector, DateSelector.CommandParameterProperty);
if (isEditing)
{
// 变换焦点才可以获取。
this.Dispatcher.BeginInvoke(new Action(() =>
{
dateSelector.Focusable = true;
dateSelector.Focus();
}), System.Windows.Threading.DispatcherPriority.Input);
}
return(dateSelector);
}
/// <summary>
/// Called when a cell has just switched to edit mode.
/// </summary>
/// <param name="editingElement">A reference to element returned by GenerateEditingElement.</param>
/// <param name="editingEventArgs">The event args of the input event that caused the cell to go into edit mode. May be null.</param>
/// <returns>The unedited value of the cell.</returns>
protected override object PrepareCellForEdit(FrameworkElement editingElement, RoutedEventArgs editingEventArgs)
{
DateSelector dateSelector = editingElement as DateSelector;
if (dateSelector != null)
{
// 变换焦点才可以获取。
dateSelector.Focusable = false;
return(dateSelector.SelectedDate);
}
return((DateTime?)null);
}
public static void PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DateSelector dp = d as DateSelector;
string propName = e.Property.Name;
if (propName == "ConsumerFontSize")
{
int fontSize = (int)e.NewValue;
dp.tbHourSpecial.FontSize = fontSize;
dp.tbMinuteSpecial.FontSize = fontSize;
dp.tbSplitSpecial.FontSize = fontSize;
}
else if (propName == "SelectedDate" && null == dp.SelectedDate)
{
dp.SelectedDate = null;
dp.tbHourSpecial.Text = string.Empty;
dp.tbMinuteSpecial.Text = string.Empty;
}
else if (propName == "SelectedDate" && null != dp.SelectedDate &&
dp.SelectedDate != DateTime.MinValue && dp.SelectedDate != DateTime.MaxValue &&
string.IsNullOrEmpty(dp.tbHourSpecial.Text) && string.IsNullOrEmpty(dp.tbMinuteSpecial.Text))
{
DateTime dtValue = DateTime.Parse(dp.SelectedDate.ToString());
dp.tbHourSpecial.Text = dtValue.Hour.ToString().PadLeft(2, '0');
if (dp.tbHourSpecial.IsEnabled)
{
bool tt = dp.tbHourSpecial.Focus();
tt = dp.tbHourSpecial.Focusable;
}
dp.tbMinuteSpecial.Text = dtValue.Minute.ToString().PadLeft(2, '0');
dp.calendar.SelectedDate = dtValue;
dp.gridMain.ToolTip = dtValue.ToString("yyyy-MM-dd HH:mm");
}
//else if (propName == "IsDefaultValue")
//{
// bool result = (bool)e.NewValue;
// if (!result && null == dp.SelectedDate)
// {
// dp.SelectedDate = null;
// dp.tbHourSpecial.Text = string.Empty;
// dp.tbHourSpecial.Focus();
// dp.tbMinuteSpecial.Text = string.Empty;
// }
//}
}