public IDecision EvaluateNextOneGetFollowOnBranch(IDecision questionnaire)
{
IDecision q = questionnaire;
if (q.Result == 0)
{
q.Mutator(q, null);
}
var nxt = q.GetFollowOnDecisionBranch(q.Result);
q = nxt;
return(q);
}
private static void doCornerShopQuestionnaireDemo()
{
// get a decisionTree with lambdas...
var questionnaire = CornerShopQuestionnaireFactory.GetCornerShopQuestionnaire();
#region Commented : setting a 'canned' answer on the root of the questionnaire
//var startDecision = questionnaire.GetNext(questionnaire) as CornerShopStartDecision;
//if (startDecision != null)
//{
// startDecision.Result = 1;
//}
#endregion Commented : setting a 'canned' answer on the root of the questionnaire
Console.ReadLine();
#region Evaluation at the console
// 1. Evaluate all at the console ...
//questionnaire.Evaluate();
#endregion Evaluation at the console
#region Evaluation at the console 1-by-1
// 2. Evaluate current and then next one until no more next ones ...
//IDecision q = questionnaire;
//while ( q != null)
//{
// q = q.EvaluateNextOneGetFollowOnBranch(q);
//}
#endregion Evaluation at the console 1-by-1
#region Evaluation at the console
// 3. Evaluating one at a time, with access to the mutator
IDecision q = questionnaire;
while (q != null)
{
if (q.Result == 0)
{
q.Mutator(q, null);
}
var nxt = q.GetFollowOnDecisionBranch(q.Result);
q = nxt;
}
#endregion Evaluation at the console
#region Explanation of the choices
// cw summary of the users answers to the questions
var explanation = questionnaire.Explantion();
Console.WriteLine("{0}", explanation);
#endregion Explanation of the choices
#region Cost associated with the questionnaire user choices
// cw the cost associated with answers to the questions
var chosenOnes = questionnaire.ChosenOnes(null);
var cost = chosenOnes.Aggregate(0.0f, (current, chosenOne) => current + chosenOne.Amount);
Console.WriteLine("cost: {0}", cost);
#endregion Cost associated with the questionnaire user choices
// press a key to continue
Console.ReadLine();
}