///--------------------------------------------------------------------------------
/// <summary>Evaluate expression associated with this node.</summary>
///
/// <param name="solutionContext">The associated solution.</param>
/// <param name="templateContext">The associated template.</param>
/// <param name="modelContext">The associated model context.</param>
/// <param name="interpreterType">The type of interpretation to perform.</param>
///--------------------------------------------------------------------------------
public string GetExpressionValue(Solution solutionContext, ITemplate templateContext, IDomainEnterpriseObject modelContext, InterpreterTypeCode interpreterType)
{
string expression1Value = String.Empty;
if (Expression1 != null)
{
expression1Value = Expression1.GetExpressionValue(solutionContext, templateContext, modelContext, interpreterType);
}
string expression2Value = String.Empty;
if (Expression2 != null)
{
expression2Value = Expression2.GetExpressionValue(solutionContext, templateContext, modelContext, interpreterType);
}
if (String.IsNullOrEmpty(expression1Value))
{
expression1Value = "null";
}
if (String.IsNullOrEmpty(expression2Value))
{
expression2Value = "null";
}
long expression1Long;
long expression2Long;
double expression1Double;
double expression2Double;
if (Literal != null)
{
return(Literal.RawValue);
}
if (ModelProperty != null)
{
return(ModelProperty.GetPropertyStringValue(solutionContext, templateContext, modelContext, modelContext, interpreterType));
}
if (ModelContext != null)
{
bool isValidContext;
IDomainEnterpriseObject nodeContext = ModelContext.GetModelContext(solutionContext, templateContext, modelContext, out isValidContext);
if (nodeContext == null)
{
return("null");
}
else
{
if (nodeContext.ID == Guid.Empty || nodeContext.ID == null)
{
return("null");
}
return(nodeContext.ID.ToString());
}
}
else if (CurrentItem != null)
{
IDomainEnterpriseObject nodeContext = CurrentItem.GetModelContext(solutionContext, templateContext, modelContext);
if (nodeContext == null)
{
return("null");
}
else
{
return(nodeContext.ID.ToString());
}
}
else if (SpecCurrentItem != null)
{
IDomainEnterpriseObject nodeContext = SpecCurrentItem.GetModelContext(solutionContext, templateContext, modelContext);
if (nodeContext == null)
{
return("null");
}
else
{
return(nodeContext.ID.ToString());
}
}
else if (Expression1 != null && Expression2 != null)
{
if (BinaryOperator != null)
{
switch (BinaryOperator.Operator)
{
case "||":
if (Expression1.EvaluateExpression(solutionContext, templateContext, modelContext, interpreterType) || Expression2.EvaluateExpression(solutionContext, templateContext, modelContext, interpreterType))
{
return("true");
}
return("false");
case "&&":
if (Expression1.EvaluateExpression(solutionContext, templateContext, modelContext, interpreterType) && Expression2.EvaluateExpression(solutionContext, templateContext, modelContext, interpreterType))
{
return("true");
}
return("false");
case "==":
if (expression1Value == expression2Value)
{
return("true");
}
return("false");
case "!=":
if (expression1Value != expression2Value)
{
return("true");
}
return("false");
case "<":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
if (expression1Long < expression2Long)
{
return("true");
}
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
if (expression1Double < expression2Double)
{
return("true");
}
}
else
{
if (expression1Value.Length < expression2Value.Length)
{
return("true");
}
}
return("false");
case ">":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
if (expression1Long > expression2Long)
{
return("true");
}
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
if (expression1Double > expression2Double)
{
return("true");
}
}
else
{
if (expression1Value.Length > expression2Value.Length)
{
return("true");
}
}
return("false");
case "<=":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
if (expression1Long <= expression2Long)
{
return("true");
}
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
if (expression1Double <= expression2Double)
{
return("true");
}
}
else
{
if (expression1Value.Length <= expression2Value.Length)
{
return("true");
}
}
return("false");
case ">=":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
if (expression1Long >= expression2Long)
{
return("true");
}
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
if (expression1Double >= expression2Double)
{
return("true");
}
}
else
{
if (expression1Value.Length >= expression2Value.Length)
{
return("true");
}
}
return("false");
default:
return("false");
}
}
else if (MathOperator != null)
{
switch (MathOperator.Operator)
{
case "+":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
return((expression1Long + expression2Long).ToString());
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
return((expression1Double + expression2Double).ToString());
}
else
{
return(expression1Value + expression2Value);
}
case "-":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
return((expression1Long - expression2Long).ToString());
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
return((expression1Double - expression2Double).ToString());
}
else
{
return(expression1Value.Replace(expression2Value, ""));
}
case "*":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true)
{
return((expression1Long * expression2Long).ToString());
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true)
{
return((expression1Double * expression2Double).ToString());
}
break;
case "/":
if (long.TryParse(expression1Value, out expression1Long) == true && long.TryParse(expression2Value, out expression2Long) == true && expression2Long != 0)
{
return((expression1Long / expression2Long).ToString());
}
else if (double.TryParse(expression1Value, out expression1Double) == true && double.TryParse(expression2Value, out expression2Double) == true && expression2Double != 0.00)
{
return((expression1Double / expression2Double).ToString());
}
break;
default:
break;
}
return("null");
}
}
else if (Expression1 != null)
{
return(Expression1.GetExpressionValue(solutionContext, templateContext, modelContext, interpreterType));
}
return("null");
}