ProjectionExpression Class

Reference

Definition

Namespace:: Microsoft.EntityFrameworkCore.Query.SqlExpressions

Assembly:: Microsoft.EntityFrameworkCore.Relational.dll

Package:: Microsoft.EntityFrameworkCore.Relational v3.0.0

Package:: Microsoft.EntityFrameworkCore.Relational v3.1.0

Package:: Microsoft.EntityFrameworkCore.Relational v5.0.0

Package:: Microsoft.EntityFrameworkCore.Relational v6.0.0

Package:: Microsoft.EntityFrameworkCore.Relational v7.0.0

Package:: Microsoft.EntityFrameworkCore.Relational v8.0.0

Important

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An expression that represents a projection in SelectExpression.

public class ProjectionExpression : System.Linq.Expressions.Expression, Microsoft.EntityFrameworkCore.Query.IPrintableExpression

public sealed class ProjectionExpression : System.Linq.Expressions.Expression, Microsoft.EntityFrameworkCore.Query.IPrintableExpression

[System.Diagnostics.DebuggerDisplay("{Microsoft.EntityFrameworkCore.Query.ExpressionPrinter.Print(this), nq}")]
public sealed class ProjectionExpression : System.Linq.Expressions.Expression, Microsoft.EntityFrameworkCore.Query.IPrintableExpression

type ProjectionExpression = class
    inherit Expression
    interface IPrintableExpression

[<System.Diagnostics.DebuggerDisplay("{Microsoft.EntityFrameworkCore.Query.ExpressionPrinter.Print(this), nq}")>]
type ProjectionExpression = class
    inherit Expression
    interface IPrintableExpression

Public Class ProjectionExpression
Inherits Expression
Implements IPrintableExpression

Public NotInheritable Class ProjectionExpression
Inherits Expression
Implements IPrintableExpression

Inheritance: Expression
ProjectionExpression

Attributes: DebuggerDisplayAttribute

Implements: IPrintableExpression

Remarks

This is a simple wrapper around a SqlExpression and an alias. Instances of this type cannot be constructed by application or database provider code. If this is a problem for your application or provider, then please file an issue at github.com/dotnet/efcore.

Constructors

ProjectionExpression(SqlExpression, String)

Properties

Alias	The alias assigned to this projection, if any.
Expression	The SQL value which is being projected.
NodeType	Gets the node type of this Expression.
Type	Gets the static type of the expression that this Expression represents.

Methods

Equals(Object)	System.Linq.Expressions.Expression.Equals(System.Object)
GetHashCode()	System.Linq.Expressions.Expression.GetHashCode
Print(ExpressionPrinter)
Update(SqlExpression)	Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.
VisitChildren(ExpressionVisitor)	Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible.

Explicit Interface Implementations

IPrintableExpression.Print(ExpressionPrinter)

Creates a printable string representation of the given expression using ExpressionPrinter.

Applies to