private static void minValueChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DateTimeEditor DateTimeUpDown = ((DateTimeEditor)d);
DateTimeUpDown.CoerceValue(DateTimeEditor.MaxValueProperty);
DateTimeUpDown.CoerceValue(DateTimeEditor.ValueProperty);
}
private static object coerceFormatCallback(DependencyObject d, object value)
{
DateTimeEditor DateTimeUpDown = ((DateTimeEditor)d);
// check format is valid
return(value);
}
private static void valueChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DateTimeEditor dt = (DateTimeEditor)d;
DateTimeChangedEventArgs ea =
new DateTimeChangedEventArgs(DateTimeEditor.ValueChangedEvent, d, (DateTime?)e.OldValue, (DateTime?)e.NewValue);
dt.RaiseEvent(ea);
//if (ea.Handled) DateTimeUpDown.Value = (DateTime)e.OldValue;
//else
if (e.NewValue == null)
{
dt.PART_TextBox.Text = string.Empty;
}
else
{
dt.PART_TextBox.Text = ((DateTime)e.NewValue).ToString(dt.Format);
}
}
private static object coerceValueCallback(DependencyObject d, object value)
{
DateTimeEditor dt = (DateTimeEditor)d;
if (value != null)
{
DateTime val = (DateTime)value;
if (val > dt.MinValue && val < dt.MaxValue)
{
return(val);
}
else if (val < dt.MinValue)
{
return(dt.MinValue);
}
else if (val < dt.MaxValue)
{
return(dt.MaxValue);
}
}
return(null);
}