/// <summary>
/// Evaluate the expression according to the operation specified and pass this to the CalculationManager
// If something goes wrong during the execution, the error field will be populated and the method will
// return false.
/// </summary>
/// <param name="expressionTO">The expression automatic.</param>
/// <param name="evaluation">The evaluation.</param>
/// <param name="error">The error.</param>
/// <returns></returns>
public bool TryEvaluateFunction(IEvaluationFunction expressionTO, out string evaluation, out string error)
{
bool isSuccessfulEvaluation;
error = string.Empty;
evaluation = string.Empty;
if (!(string.IsNullOrEmpty(expressionTO.Function)))
{
try
{
CalculationValue calcVal = _manager.CalculateFormula(expressionTO.Function);
evaluation = calcVal.GetResolvedValue().ToString();
isSuccessfulEvaluation = true;
}
catch (Exception ex)
{
Dev2Logger.Log.Error("Function evaluation Error", ex);
error = ex.Message;
isSuccessfulEvaluation = false;
}
}
else
{
error = "Unable to evaluate empty function";
isSuccessfulEvaluation = false;
}
return(isSuccessfulEvaluation);
}
public bool TryEvaluateFunction(string expression, out string evaluation, out string error)
{
var evaluationState = false;
error = string.Empty;
evaluation = string.Empty;
if (!string.IsNullOrEmpty(expression))
{
try
{
var value = _manager.CalculateFormula(expression);
if (value.IsError)
{
error = value.ToErrorValue().Message;
}
else
{
evaluation = value.IsDateTime ? PerformEvaluation(value) : value.GetResolvedValue().ToString();
evaluationState = true;
}
}
catch (Exception ex)
{
Dev2Logger.Error(ErrorResource.FunctionEvaluationError, ex, GlobalConstants.WarewolfError);
error = ex.Message;
evaluationState = false;
}
}
else
{
error = ErrorResource.NothingToEvaluate;
}
return(evaluationState);
}
/// <summary>
/// Evaluate the expression according to the operation specified and pass this to the CalculationManager
/// </summary>
/// <param name="expression">The expression.</param>
/// <param name="evaluation">The evaluation.</param>
/// <param name="error">The error.</param>
/// <returns></returns>
public bool TryEvaluateFunction(string expression, out string evaluation, out string error)
{
bool evaluationState = false;
error = String.Empty;
evaluation = String.Empty;
if (!String.IsNullOrEmpty(expression))
{
try
{
CalculationValue value = _manager.CalculateFormula(expression);
if (value.IsError)
{
error = value.ToErrorValue().Message;
}
else
{
if (value.IsDateTime)
{
DateTime dateTime = value.ToDateTime();
string shortPattern = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;
string longPattern = CultureInfo.CurrentCulture.DateTimeFormat.LongTimePattern;
string finalPattern = shortPattern + " " + longPattern;
if (finalPattern.Contains("ss"))
{
finalPattern = finalPattern.Insert(finalPattern.IndexOf("ss", StringComparison.Ordinal) + 2, ".fff");
}
evaluation = dateTime.ToString(finalPattern);
}
else
{
evaluation = value.GetResolvedValue().ToString();
}
evaluationState = true;
}
}
catch (Exception ex)
{
Dev2Logger.Error(ErrorResource.FunctionEvaluationError, ex);
error = ex.Message;
evaluationState = false;
}
}
else
{
error = ErrorResource.NothingToEvaluate;
}
return(evaluationState);
}