SelectExpression.AddLeftOuterJoin 方法

参考

定义

命名空间:: Microsoft.EntityFrameworkCore.Query.Expressions

程序集:: Microsoft.EntityFrameworkCore.Relational.dll

包:: Microsoft.EntityFrameworkCore.Relational v1.0.6

包:: Microsoft.EntityFrameworkCore.Relational v1.1.6

包:: Microsoft.EntityFrameworkCore.Relational v2.0.3

包:: Microsoft.EntityFrameworkCore.Relational v2.1.11

包:: Microsoft.EntityFrameworkCore.Relational v2.2.6

重要

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重载

AddLeftOuterJoin(TableExpressionBase)	将 SQL LEFT OUTER JOIN 添加到此 SelectExpression。
AddLeftOuterJoin(TableExpressionBase, IEnumerable<Expression>)	将 SQL LEFT OUTER JOIN 添加到此 SelectExpression。

AddLeftOuterJoin(TableExpressionBase)

Source:: SelectExpression.cs

Source:: SelectExpression.cs

将 SQL LEFT OUTER JOIN 添加到此 SelectExpression。

public virtual Microsoft.EntityFrameworkCore.Query.Expressions.JoinExpressionBase AddLeftOuterJoin (Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase tableExpression);

public virtual Microsoft.EntityFrameworkCore.Query.Expressions.PredicateJoinExpressionBase AddLeftOuterJoin (Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase tableExpression);

abstract member AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase -> Microsoft.EntityFrameworkCore.Query.Expressions.JoinExpressionBase
override this.AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase -> Microsoft.EntityFrameworkCore.Query.Expressions.JoinExpressionBase

abstract member AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase -> Microsoft.EntityFrameworkCore.Query.Expressions.PredicateJoinExpressionBase
override this.AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase -> Microsoft.EntityFrameworkCore.Query.Expressions.PredicateJoinExpressionBase

Public Overridable Function AddLeftOuterJoin (tableExpression As TableExpressionBase) As JoinExpressionBase

Public Overridable Function AddLeftOuterJoin (tableExpression As TableExpressionBase) As PredicateJoinExpressionBase

参数

tableExpression: TableExpressionBase

目标表表达式。

JoinExpressionBase

PredicateJoinExpressionBase

适用于

AddLeftOuterJoin(TableExpressionBase, IEnumerable<Expression>)

Source:: SelectExpression.cs

Source:: SelectExpression.cs

将 SQL LEFT OUTER JOIN 添加到此 SelectExpression。

public virtual Microsoft.EntityFrameworkCore.Query.Expressions.JoinExpressionBase AddLeftOuterJoin (Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase tableExpression, System.Collections.Generic.IEnumerable<System.Linq.Expressions.Expression> projection);

public virtual Microsoft.EntityFrameworkCore.Query.Expressions.PredicateJoinExpressionBase AddLeftOuterJoin (Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase tableExpression, System.Collections.Generic.IEnumerable<System.Linq.Expressions.Expression> projection);

abstract member AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase * seq<System.Linq.Expressions.Expression> -> Microsoft.EntityFrameworkCore.Query.Expressions.JoinExpressionBase
override this.AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase * seq<System.Linq.Expressions.Expression> -> Microsoft.EntityFrameworkCore.Query.Expressions.JoinExpressionBase

abstract member AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase * seq<System.Linq.Expressions.Expression> -> Microsoft.EntityFrameworkCore.Query.Expressions.PredicateJoinExpressionBase
override this.AddLeftOuterJoin : Microsoft.EntityFrameworkCore.Query.Expressions.TableExpressionBase * seq<System.Linq.Expressions.Expression> -> Microsoft.EntityFrameworkCore.Query.Expressions.PredicateJoinExpressionBase

Public Overridable Function AddLeftOuterJoin (tableExpression As TableExpressionBase, projection As IEnumerable(Of Expression)) As JoinExpressionBase

Public Overridable Function AddLeftOuterJoin (tableExpression As TableExpressionBase, projection As IEnumerable(Of Expression)) As PredicateJoinExpressionBase