void control_BindingValidationError(object sender, ValidationErrorEventArgs e)
{
var control = e.OriginalSource as Control;
if (e.Action == ValidationErrorEventAction.Removed && ErrorControls.Contains(control))
{
ErrorControls.Remove(control);
}
else if (e.Action == ValidationErrorEventAction.Added && !ErrorControls.Contains(control) && control.IsEnabled && control.Visibility == Visibility.Visible)
{
ErrorControls.Add(control);
}
}
private bool ValidateDateRange(Control p, FrameworkElement element, FieldInfo field)
{
DateTime?currentDate = p.GetType().GetProperty("SelectedDate").GetValue(p, null) as DateTime?;
var entity = element.DataContext as ComplexObject;
string maxDateFrom = RestrictDatePickerAttached.GetMaxDate(element);
string minDateFrom = RestrictDatePickerAttached.GetMinDate(element);
if (entity != null && currentDate != null && (currentDate < DateTime.Parse(minDateFrom) || currentDate > DateTime.Parse(maxDateFrom)))
{
var be = element.GetBindingExpression((DependencyProperty)field.GetValue(null));
if (be != null && be.ParentBinding != null && be.ParentBinding.Path != null)
{
if (p.Tag == null)
{
p.Tag = new ValidationResult(string.Format(ValidationResource.ValidationMessage_InvalidDate, minDateFrom, maxDateFrom), new string[] { be.ParentBinding.Path.Path });
entity.ValidationErrors.Add(p.Tag as ValidationResult);
}
else if (!entity.ValidationErrors.Contains(p.Tag as ValidationResult))
{
entity.ValidationErrors.Add(p.Tag as ValidationResult);
}
}
if (!ErrorControls.Contains(p))
{
ErrorControls.Add(element as Control);
}
return(false);
}
else if (entity != null)
{
if (p.Tag != null && entity.ValidationErrors.Contains(p.Tag as ValidationResult))
{
entity.ValidationErrors.Remove(p.Tag as ValidationResult);
p.Tag = null;
}
if (ErrorControls.Contains(p))
{
ErrorControls.Remove(element as Control);
}
}
return(true);
}
