Example 1: Select — Field Projection

The Select<T> extension takes a list of field paths. Each variant below shows a different projection style.

Direct scalars

{ "fields": ["Id", "Name", "Price"] }

Dotted path through reference navigation

{ "fields": ["Id", "Name", "Category.Name"] }

Category is projected with only the requested Name sub-field (Id auto-included).

Dotted path through collection navigation

{ "fields": ["Id", "Name", "Category.Vendors.Id"] }

Category.Vendors is a collection — each Vendor element is projected with only its Id (Id auto-included).

Whole navigation object (non-dotted)

{ "fields": ["Id", "Name", "Category"] }

The entire Category object is bound as-is.

Whole collection (non-dotted)

{ "fields": ["Id", "Name", "Brands"] }

The entire Brands collection is bound as-is.

Related

• Select extension
• SelectDynamic example — same paths, dynamic return type.