EntityFrameworkQueryableExtensions.ThenInclude Method
Definition
Important
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Overloads
| ThenInclude<TEntity,TPreviousProperty,TProperty>(IIncludableQueryable<TEntity,TPreviousProperty>, Expression<Func<TPreviousProperty,TProperty>>) |
Specifies additional related data to be further included based on a related type that was just included. |
| ThenInclude<TEntity,TPreviousProperty,TProperty>(IIncludableQueryable<TEntity, IEnumerable<TPreviousProperty>>, Expression<Func<TPreviousProperty, TProperty>>) |
Specifies additional related data to be further included based on a related type that was just included. |
| ThenInclude<TEntity,TPreviousProperty,TProperty>(IIncludableQueryable<TEntity, ICollection<TPreviousProperty>>, Expression<Func<TPreviousProperty, TProperty>>) |
Specifies additional related data to be further included based on a related type that was just included. |
ThenInclude<TEntity,TPreviousProperty,TProperty>(IIncludableQueryable<TEntity,TPreviousProperty>, Expression<Func<TPreviousProperty,TProperty>>)
Specifies additional related data to be further included based on a related type that was just included.
public static Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<TEntity,TProperty> ThenInclude<TEntity,TPreviousProperty,TProperty>(this Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<TEntity,TPreviousProperty> source, System.Linq.Expressions.Expression<Func<TPreviousProperty,TProperty>> navigationPropertyPath) where TEntity : class;static member ThenInclude : Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<'Entity, 'PreviousProperty (requires 'Entity : null)> * System.Linq.Expressions.Expression<Func<'PreviousProperty, 'Property>> -> Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<'Entity, 'Property (requires 'Entity : null)> (requires 'Entity : null)<Extension()>
Public Function ThenInclude(Of TEntity As Class, TPreviousProperty As Class, TProperty As Class) (source As IIncludableQueryable(Of TEntity, TPreviousProperty), navigationPropertyPath As Expression(Of Func(Of TPreviousProperty, TProperty))) As IIncludableQueryable(Of TEntity, TProperty)Type Parameters
- TEntity
The type of entity being queried.
- TPreviousProperty
The type of the entity that was just included.
- TProperty
The type of the related entity to be included.
Parameters
- source
- IIncludableQueryable<TEntity,TPreviousProperty>
The source query.
- navigationPropertyPath
- Expression<Func<TPreviousProperty,TProperty>>
A lambda expression representing the navigation property to be included (t => t.Property1).
Returns
A new query with the related data included.
Examples
The following query shows including a single level of related entities:
context.Blogs.Include(blog => blog.Posts)
The following query shows including two levels of entities on the same branch:
context.Blogs.Include(blog => blog.Posts).ThenInclude(post => post.Tags)
The following query shows including multiple levels and branches of related data:
context.Blogs
.Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
.Include(blog => blog.Contributors)
The following query shows including two levels of entities on the same branch, second one being on derived type:
context.Blogs.Include(blog => blog.Posts).ThenInclude(post => ((SpecialPost)post).SpecialTags)
The following query shows including two levels of entities on the same branch, second one being on derived type using alternative method.
context.Blogs.Include(blog => blog.Posts).ThenInclude(post => (post as SpecialPost).SpecialTags)
Remarks
See Loading related entities for more information and examples.
Applies to
ThenInclude<TEntity,TPreviousProperty,TProperty>(IIncludableQueryable<TEntity, IEnumerable<TPreviousProperty>>, Expression<Func<TPreviousProperty, TProperty>>)
Specifies additional related data to be further included based on a related type that was just included.
public static Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<TEntity,TProperty> ThenInclude<TEntity,TPreviousProperty,TProperty>(this Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<TEntity,System.Collections.Generic.IEnumerable<TPreviousProperty>> source, System.Linq.Expressions.Expression<Func<TPreviousProperty,TProperty>> navigationPropertyPath) where TEntity : class;static member ThenInclude : Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<'Entity, seq<'PreviousProperty> (requires 'Entity : null)> * System.Linq.Expressions.Expression<Func<'PreviousProperty, 'Property>> -> Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<'Entity, 'Property (requires 'Entity : null)> (requires 'Entity : null)<Extension()>
Public Function ThenInclude(Of TEntity As Class, TPreviousProperty As Class, TProperty As Class) (source As IIncludableQueryable(Of TEntity, IEnumerable(Of TPreviousProperty)), navigationPropertyPath As Expression(Of Func(Of TPreviousProperty, TProperty))) As IIncludableQueryable(Of TEntity, TProperty)Type Parameters
- TEntity
The type of entity being queried.
- TPreviousProperty
The type of the entity that was just included.
- TProperty
The type of the related entity to be included.
Parameters
- source
- IIncludableQueryable<TEntity,IEnumerable<TPreviousProperty>>
The source query.
- navigationPropertyPath
- Expression<Func<TPreviousProperty,TProperty>>
A lambda expression representing the navigation property to be included (t => t.Property1).
Returns
A new query with the related data included.
Examples
The following query shows including a single level of related entities:
context.Blogs.Include(blog => blog.Posts)
The following query shows including two levels of entities on the same branch:
context.Blogs
.Include(blog => blog.Posts).ThenInclude(post => post.Tags)
The following query shows including multiple levels and branches of related data:
context.Blogs
.Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
.Include(blog => blog.Contributors)
The following query shows including two levels of entities on the same branch, second one being on derived type using casting:
context.Blogs.Include(blog => blog.Posts).ThenInclude(post => ((SpecialPost)post).SpecialTags)
The following query shows including two levels of entities on the same branch, second one being on derived type using
the as operator.
context.Blogs.Include(blog => blog.Posts).ThenInclude(post => (post as SpecialPost).SpecialTags)
Remarks
See Loading related entities for more information and examples.
Applies to
ThenInclude<TEntity,TPreviousProperty,TProperty>(IIncludableQueryable<TEntity, ICollection<TPreviousProperty>>, Expression<Func<TPreviousProperty, TProperty>>)
Specifies additional related data to be further included based on a related type that was just included.
public static Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<TEntity,TProperty> ThenInclude<TEntity,TPreviousProperty,TProperty>(this Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<TEntity,System.Collections.Generic.ICollection<TPreviousProperty>> source, System.Linq.Expressions.Expression<Func<TPreviousProperty,TProperty>> navigationPropertyPath) where TEntity : class;static member ThenInclude : Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<'Entity, System.Collections.Generic.ICollection<'PreviousProperty> (requires 'Entity : null)> * System.Linq.Expressions.Expression<Func<'PreviousProperty, 'Property>> -> Microsoft.EntityFrameworkCore.Query.IIncludableQueryable<'Entity, 'Property (requires 'Entity : null)> (requires 'Entity : null)<Extension()>
Public Function ThenInclude(Of TEntity As Class, TPreviousProperty As Class, TProperty As Class) (source As IIncludableQueryable(Of TEntity, ICollection(Of TPreviousProperty)), navigationPropertyPath As Expression(Of Func(Of TPreviousProperty, TProperty))) As IIncludableQueryable(Of TEntity, TProperty)Type Parameters
- TEntity
The type of entity being queried.
- TPreviousProperty
The type of the entity that was just included.
- TProperty
The type of the related entity to be included.
Parameters
- source
- IIncludableQueryable<TEntity,ICollection<TPreviousProperty>>
The source query.
- navigationPropertyPath
- Expression<Func<TPreviousProperty,TProperty>>
A lambda expression representing the navigation property to be included (t => t.Property1).
Returns
A new query with the related data included.
Examples
The following query shows including a single level of related entities.
context.Blogs.Include(blog => blog.Posts);
The following query shows including two levels of entities on the same branch.
context.Blogs
.Include(blog => blog.Posts).ThenInclude(post => post.Tags);
The following query shows including multiple levels and branches of related data.
context.Blogs
.Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
.Include(blog => blog.Contributors);
