public UIElement Visit(ComputedQuestion question)
{
QuestionControl questionControl = new QuestionControl(question.Id);
questionControl.AddQuestionLabel(question.Text);
Control ioControl = question.Type.Accept <UIElement>(this) as Control;
// create binding to control (writes value of questionControl to value of ioControl)
Binding bind = new Binding("MyValue");
bind.Source = questionControl;
bind.Converter = question.Type.Accept <IValueConverter>(new ConverterVisitor()) as IValueConverter;
bind.Mode = BindingMode.OneWay;
bind.FallbackValue = "";
bind.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
bind.NotifyOnTargetUpdated = true;
ioControl.SetBinding(question.Type.Accept <DependencyProperty>(new DependencyPropertyVisitor()) as DependencyProperty, bind);
questionControl.AddIOControl(ioControl, false);
this._computedList.Add(new Tuple <QSExpression, UIElement>(question.Expression, questionControl));
return(questionControl);
}
public UIElement Visit(Question question)
{
QuestionControl questionControl = new QuestionControl(question.Id);
questionControl.AddQuestionLabel(question.Text);
Control ioControl = question.Type.Accept <UIElement>(this) as Control;
// create binding to control (writes value of ioControl to value of questionControl)
Binding bind = new Binding("MyValue");
bind.Source = questionControl;
bind.Converter = question.Type.Accept <IValueConverter>(new ConverterVisitor()) as IValueConverter;
bind.Mode = BindingMode.OneWayToSource;
bind.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
bind.NotifyOnSourceUpdated = true;
ioControl.SetBinding(question.Type.Accept <DependencyProperty>(new DependencyPropertyVisitor()) as DependencyProperty, bind);
questionControl.SourceUpdated += new EventHandler <DataTransferEventArgs>(questionControl_SourceUpdated);
questionControl.AddIOControl(ioControl, true);
this._evaluator.SetValue(question.Id, question.Type.GetUndefined());
questionControl.MyValueChanged += new DependencyPropertyChangedEventHandler(questionControl_ContentChanged);
return(questionControl);
}