static bool Compare(object leftOperand, ComparisonCondition operatorType, object rightOperand)
{
if (leftOperand != null && rightOperand != null)
{
rightOperand = TypeConverterHelper.Convert(rightOperand.ToString(), leftOperand.GetType().FullName);
}
IComparable leftComparableOperand = leftOperand as IComparable;
IComparable rightComparableOperand = rightOperand as IComparable;
if ((leftComparableOperand != null) && (rightComparableOperand != null))
{
return(EvaluateComparable(leftComparableOperand, operatorType, rightComparableOperand));
}
switch (operatorType)
{
case ComparisonCondition.Equal:
return(object.Equals(leftOperand, rightOperand));
case ComparisonCondition.NotEqual:
return(!object.Equals(leftOperand, rightOperand));
case ComparisonCondition.LessThan:
case ComparisonCondition.LessThanOrEqual:
case ComparisonCondition.GreaterThan:
case ComparisonCondition.GreaterThanOrEqual:
{
if (leftComparableOperand == null && rightComparableOperand == null)
{
throw new ArgumentException("Invalid operands");
}
else if (leftComparableOperand == null)
{
throw new ArgumentException("Invalid left operand");
}
else
{
throw new ArgumentException("Invalid right operand");
}
}
}
return(false);
}
void UpdatePropertyValue(object targetObject)
{
Type targetType = targetObject.GetType();
PropertyInfo propertyInfo = targetType.GetRuntimeProperty(PropertyName);
ValidateProperty(targetType.Name, propertyInfo);
Exception innerException = null;
try
{
object result = null;
Type propertyType = propertyInfo.PropertyType;
TypeInfo propertyTypeInfo = propertyType.GetTypeInfo();
if (Value == null)
{
result = propertyTypeInfo.IsValueType ? Activator.CreateInstance(propertyType) : null;
}
else if (propertyTypeInfo.IsAssignableFrom(Value.GetType().GetTypeInfo()))
{
result = Value;
}
else
{
string valueAsString = Value.ToString();
result = propertyTypeInfo.IsEnum ? Enum.Parse(propertyType, valueAsString, false) : TypeConverterHelper.Convert(valueAsString, propertyType.FullName);
}
propertyInfo.SetValue(targetObject, result, new object[0]);
}
catch (FormatException ex)
{
innerException = ex;
}
catch (ArgumentException ex)
{
innerException = ex;
}
if (innerException != null)
{
throw new ArgumentException("Cannot set value.", innerException);
}
}