Table of Contents

Class LeftJoinExpression

Namespace
Microsoft.EntityFrameworkCore.Query.SqlExpressions
Assembly
Microsoft.EntityFrameworkCore.Relational.dll

An expression that represents a LEFT JOIN in a SQL tree.

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

public class LeftJoinExpression : PredicateJoinExpressionBase, IPrintableExpression
Inheritance
LeftJoinExpression
Implements
IPrintableExpression
Inherited Members

Constructors

LeftJoinExpression(TableExpressionBase, SqlExpression)

Creates a new instance of the LeftJoinExpression class.

public LeftJoinExpression(TableExpressionBase table, SqlExpression joinPredicate)

Parameters

table TableExpressionBase

A table source to LEFT JOIN with.

joinPredicate SqlExpression

A predicate to use for the join.

Methods

CreateWithAnnotations(IEnumerable<IAnnotation>) 

protected override TableExpressionBase CreateWithAnnotations(IEnumerable<IAnnotation> annotations)

Parameters

annotations IEnumerable<IAnnotation>

Returns

TableExpressionBase

Equals(object?) 

public override bool Equals(object? obj)

Parameters

obj object

Returns

bool

GetHashCode() 

public override int GetHashCode()

Returns

int

Print(ExpressionPrinter) 

protected override void Print(ExpressionPrinter expressionPrinter)

Parameters

expressionPrinter ExpressionPrinter

Update(TableExpressionBase, 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.

public virtual LeftJoinExpression Update(TableExpressionBase table, SqlExpression joinPredicate)

Parameters

table TableExpressionBase

The Table property of the result.

joinPredicate SqlExpression

The JoinPredicate property of the result.

Returns

LeftJoinExpression

This expression if no children changed, or an expression with the updated children.

VisitChildren(ExpressionVisitor) 

protected override Expression VisitChildren(ExpressionVisitor visitor)

Parameters

visitor ExpressionVisitor

Returns

Expression