/// <summary>
///
/// </summary>
/// <returns></returns>
public override string GetParameterValue()
{
StringBuilder sb = new StringBuilder();
sb.Append(FirstOperand.GetParameterValue());
switch (Operation)
{
case MathOperation.Division:
sb.Append("/");
break;
case MathOperation.Minus:
sb.Append("-");
break;
case MathOperation.Multiplication:
sb.Append("*");
break;
case MathOperation.Plus:
sb.Append("+");
break;
}
sb.Append(SecondOperand.GetParameterValue());
return(sb.ToString());
}
/// <summary>
/// Gets the parameter value.
/// </summary>
/// <param name="rootModel">The root model.</param>
/// <param name="context">The context.</param>
/// <returns>
/// Parameter value.
/// </returns>
public override string GetParameterValue(RootModel rootModel, ActionExecutionContext context)
{
Assert.ArgumentNotNull(rootModel, "rootModel");
Assert.ArgumentNotNull(context, "context");
var leftVal = FirstOperand.GetParameterValue(rootModel, context);
var rightVal = SecondOperand.GetParameterValue(rootModel, context);
double leftValueNumeric;
double rightValueNumertic;
bool isLeftValueNumeric = double.TryParse(leftVal, NumberStyles.Any, CultureInfo.InvariantCulture, out leftValueNumeric);
bool isRightValueNumeric = double.TryParse(rightVal, NumberStyles.Any, CultureInfo.InvariantCulture, out rightValueNumertic);
if (isRightValueNumeric && isLeftValueNumeric)
{
switch (Operation)
{
case MathOperation.Plus:
return((leftValueNumeric + rightValueNumertic).ToString(CultureInfo.InvariantCulture));
case MathOperation.Minus:
return((leftValueNumeric - rightValueNumertic).ToString(CultureInfo.InvariantCulture));
case MathOperation.Multiplication:
return((leftValueNumeric * rightValueNumertic).ToString(CultureInfo.InvariantCulture));
case MathOperation.Division:
return(rightValueNumertic == 0
? string.Empty
: (leftValueNumeric / rightValueNumertic).ToString(CultureInfo.InvariantCulture));
}
}
else
{
if (Operation == MathOperation.Plus)
{
return(leftVal + rightVal);
}
}
return(string.Empty);
}