NullConditionalExpression Class

Reference

Definition

Namespace:: Microsoft.EntityFrameworkCore.Query

Assembly:: Microsoft.EntityFrameworkCore.dll

Package:: Microsoft.EntityFrameworkCore v3.0.0

Package:: Microsoft.EntityFrameworkCore v3.1.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Caution

Use ConditionalExpression with null check instead

Expression representing null-conditional access. Logic in this file is based on https://github.com/bartdesmet/ExpressionFutures

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

[System.Obsolete("Use ConditionalExpression with null check instead")]
public class NullConditionalExpression : System.Linq.Expressions.Expression, Microsoft.EntityFrameworkCore.Query.IPrintableExpression

type NullConditionalExpression = class
    inherit Expression
    interface IPrintableExpression

[<System.Obsolete("Use ConditionalExpression with null check instead")>]
type NullConditionalExpression = class
    inherit Expression
    interface IPrintableExpression

Public Class NullConditionalExpression
Inherits Expression
Implements IPrintableExpression

Inheritance: Expression
NullConditionalExpression

Attributes: ObsoleteAttribute

Implements: IPrintableExpression

Constructors

NullConditionalExpression(Expression, Expression)

Creates a new instance of NullConditionalExpression.

Properties

AccessOperation	Expression representing access operation.
Caller	Expression representing potentially nullable caller that needs to be tested for it's nullability.
CanReduce	Indicates that the node can be reduced to a simpler node. If this returns true, Reduce() can be called to produce the reduced form.
NodeType	Gets the node type of this expression.
Type	Gets the static type of the expression that this expression represents.

Methods

Equals(NullConditionalExpression)	Determines whether the specified object is equal to the current object.
Equals(Object)	Determines whether the specified object is equal to the current object.
GetHashCode()	Serves as the default hash function.
Print(ExpressionPrinter)
Reduce()	Reduces this node to a simpler expression. If CanReduce returns true, this should return a valid expression. This method can return another node which itself must be reduced.
ToString()	Returns a textual representation of the Expression.
Update(Expression, 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.

Applies to

Share via