Lenguaje

IReadOnlyIndex.CollectionIndices Property

Definition

Namespace:
Microsoft.EntityFrameworkCore.Metadata
Assembly:
Microsoft.EntityFrameworkCore.dll
Package:
Microsoft.EntityFrameworkCore v11.0.0
Source:
IReadOnlyIndex.cs

Gets the complex-collection indices traversed to reach each indexed property.

[System.Runtime.CompilerServices.Nullable(2)]
public System.Collections.Generic.IReadOnlyList<System.Collections.Generic.IReadOnlyList<int?>?>? CollectionIndices { get; }
[<System.Runtime.CompilerServices.Nullable(2)>]
member this.CollectionIndices : System.Collections.Generic.IReadOnlyList<System.Collections.Generic.IReadOnlyList<Nullable<int>>>
Public ReadOnly Property CollectionIndices As IReadOnlyList(Of IReadOnlyList(Of Nullable(Of Integer)))

Property Value

IReadOnlyList<IReadOnlyList<Nullable<Int32>>>
Attributes
NullableAttribute

Remarks

When non-null, this list has the same length as Properties. Each entry corresponds to the property at the same position and is either:

  • null, indicating the property is not reached through any complex collection.
  • A list with one entry per complex-collection segment between the entity root and the property, ordered outermost-first (the entry at index 0 resolves the complex collection closest to the entity root). A null entry means the index applies to all elements of that collection (e.g. Posts.Select(p => p.Title)); a non-null entry means the index applies only to the element at that fixed position (e.g. Posts[0].Title).

A null top-level value means no property in this index traverses any complex collection.

Applies to