ReadOnlyRepositoryExtensions.AppendToProjection<TEntity, TProjection>(Expression<Func<TEntity, Boolean>>, Func<IRepositoryQuery<TEntity>, IQueryable<TProjection>>) Method

Combines an initial projection and a predicate into a new projection with the effect of both.

Namespace: DevExpress.Mvvm.DataModel

Assembly: DevExpress.Mvvm.v24.1.DataModel.dll

NuGet Package: DevExpress.Scaffolding.Core

Declaration

C#

public static Func<IRepositoryQuery<TEntity>, IQueryable<TProjection>> AppendToProjection<TEntity, TProjection>(
    Expression<Func<TEntity, bool>> predicate,
    Func<IRepositoryQuery<TEntity>, IQueryable<TProjection>> projection
)
    where TEntity : class

VB.NET

Public Shared Function AppendToProjection(Of TEntity As Class, TProjection)(
    predicate As Expression(Of Func(Of TEntity, Boolean)),
    projection As Func(Of IRepositoryQuery(Of TEntity), IQueryable(Of TProjection))
) As Func(Of IRepositoryQuery(Of TEntity), IQueryable(Of TProjection))

Parameters

Name	Type	Description
predicate	Expression<Func<TEntity, Boolean>>	A function to test each element for a condition.
projection	Func<IRepositoryQuery<TEntity>, IQueryable<TProjection>>	A LINQ function used to transform entities from repository entity type to projection entity type.

Type Parameters

Name
TEntity
TProjection

Returns

Type	Description
Func<IRepositoryQuery<TEntity>, IQueryable<TProjection>>	A new projection.