IFulltextQueryTDocumentSelectTResult Method

Project the results of this query into a new form.

Definition

Namespace: SphinxConnector.FluentApi
Assembly: SphinxConnector (in SphinxConnector.dll) Version: 6.1.0

C#

IFulltextQuery<TResult> Select<TResult>(
	Expression<Func<TDocument, TResult>> selector
)

VB

Function Select(Of TResult) ( 
	selector As Expression(Of Func(Of TDocument, TResult))
) As IFulltextQuery(Of TResult)

Parameters

selector ExpressionFuncTDocument, TResult: A transform function to apply to each element.

Type Parameters

TResult: The projected type.

Return Value

IFulltextQueryTResult
The current instance.

Example

Suppose you have the following class representing a document in your index:

C#


    public class Product
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public decimal Price { get; set; }
        public int CategoryId { get; set; }
        public int VendorId { get; set; }
        public int Weight { get; set; }
    }

And you want to select only the name and price of a product:

C#

using (IFulltextSession fulltextSession = fulltextStore.StartSession())
{
    var results = fulltextSession.Query<Product>().
                                  Match("a product").
                                  Select(p => new
                                  {
                                      p.Name,
                                      p.Price
                                  }).ToList();
 }