ExpressionExtensions.CreateKeyValuesExpression Method

Definition

Namespace:

Microsoft.EntityFrameworkCore.Infrastructure

Assembly:

Microsoft.EntityFrameworkCore.dll

Package:

Microsoft.EntityFrameworkCore v9.0.0

Source:

ExpressionExtensions.cs

Creates an Expression tree representing reading of a key values on given expression.

This method is typically used by database providers (and other extensions). It is generally not used in application code.

public static System.Linq.Expressions.Expression CreateKeyValuesExpression (this System.Linq.Expressions.Expression target, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IProperty> properties, bool makeNullable = false);

static member CreateKeyValuesExpression : System.Linq.Expressions.Expression * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IProperty> * bool -> System.Linq.Expressions.Expression

<Extension()>
Public Function CreateKeyValuesExpression (target As Expression, properties As IReadOnlyList(Of IProperty), Optional makeNullable As Boolean = false) As Expression

Parameters

target

Expression

The expression that will be root for generated read operation.

properties

IReadOnlyList<IProperty>

The list of properties to use to generate key values.

makeNullable

Boolean

A value indicating if the key values should be read nullable.

Returns

Expression

An expression to read the key values.