TechTalk Genome v4.2

Set.Select Method (String, Object[])

Returns a Set populated by evaluating the specified OQL expression on the elements of the source Set.

public Set Select(
   string select,
   params object[] parameters
);

Parameters

select
An OQL expression that is evaluated for each element of the source Set. The expression may contain zero or more literal parameter references and it can refer to the candidate element of the source Set using the this keyword. The expression must return a scalar or persistent object.
parameters
An array of zero or more objects that can be used as literal argument values in select.

Return Value

A Set that contains the result of evaluating select for each element of the source Set. The number of elements returned in the destination Set is equal to the number of elements in the source Set.

Exceptions

Exception TypeCondition
OqlParserExceptionselect does not denote a valid OQL expression.
SqlDomException

select is not applicable to the element type of the source Set.

or

select can not be translated to the target SQL language.

or

The result type of select is not scalar or persistent in the given DataDomainSchema.

SchemaExceptionselect contains expressions or features that cannot be translated with the given DataDomainSchema.

Requirements

Namespace: TechTalk.Genome

Assembly: TechTalk.Genome (in TechTalk.Genome.dll)

Version: 4.2.4.4

Editions: Professional, Evaluation, Express

See Also

Set Class | TechTalk.Genome Namespace | Set.Select Overload List | Projection