private void OnEqualPressCommandExecute(object p)
{
if (CurrentExpression.Content != "")
{
CurrentExpression.CalculateResult();
ExpressionHistory.Add(CurrentExpression);
OnPropertyChanged("CurrentExpression");
CurrentExpression = new MathExpression();
}
}
// POST api/<controller>
public HttpResponseMessage Post([FromBody] string value)
{
ExpressionEvaluator eg = new ExpressionEvaluator();
string reps = "";
try
{
reps = eg.Evaluate(value).ToString();
}
catch (Exception ex)
{
if (ex.Message.Contains("Sorry this is too complex"))
{
reps = "Sorry this is too complex";
}
else
{
reps = "Error";
}
}
//List<KeyValuePair<string, string>> ExpressionHistory = System.Web.HttpContext.Current.Session["ExpressionHistory"] as List<KeyValuePair<string, string>>;
//if(ExpressionHistory == null)
//{
// ExpressionHistory = new List<KeyValuePair<string, string>>();
//}
List <KeyValuePair <string, string> > ExpressionHistory = SessionBag.Current.ImportData;
if (ExpressionHistory == null)
{
ExpressionHistory = new List <KeyValuePair <string, string> >();
}
KeyValuePair <string, string> exPressionValue = new KeyValuePair <string, string>(value, reps);
// exPressionValue.a = value;
ExpressionHistory.Add(exPressionValue);
//System.Web.HttpContext.Current.Session["ExpressionHistory"] = ExpressionHistory;
SessionBag.Current.ImportData = ExpressionHistory;
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, reps);
return(response);
}
public HistoryEditCommand(ExpressionHistory expressionHistory, string expression)
{
_expressionHistory = expressionHistory;
_expression = expression;
_expressionHistory.Append(_expression);
}