DbExpressionBuilder.LeftOuterJoin Method
Definition
Important
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Overloads
| LeftOuterJoin(DbExpression, DbExpression, Func<DbExpression,DbExpression,DbExpression>) |
Creates a new DbJoinExpression that joins the sets specified by the left and right expressions, on the specified join condition, using LeftOuterJoin as the DbExpressionKind . |
| LeftOuterJoin(DbExpressionBinding, DbExpressionBinding, DbExpression) |
Creates a new DbJoinExpression that joins the sets specified by the left and right expression bindings, on the specified join condition, using LeftOuterJoin as the DbExpressionKind . |
LeftOuterJoin(DbExpression, DbExpression, Func<DbExpression,DbExpression,DbExpression>)
Creates a new DbJoinExpression that joins the sets specified by the left and right expressions, on the specified join condition, using LeftOuterJoin as the DbExpressionKind .
public static System.Data.Entity.Core.Common.CommandTrees.DbJoinExpression LeftOuterJoin (this System.Data.Entity.Core.Common.CommandTrees.DbExpression left, System.Data.Entity.Core.Common.CommandTrees.DbExpression right, Func<System.Data.Entity.Core.Common.CommandTrees.DbExpression,System.Data.Entity.Core.Common.CommandTrees.DbExpression,System.Data.Entity.Core.Common.CommandTrees.DbExpression> joinCondition);static member LeftOuterJoin : System.Data.Entity.Core.Common.CommandTrees.DbExpression * System.Data.Entity.Core.Common.CommandTrees.DbExpression * Func<System.Data.Entity.Core.Common.CommandTrees.DbExpression, System.Data.Entity.Core.Common.CommandTrees.DbExpression, System.Data.Entity.Core.Common.CommandTrees.DbExpression> -> System.Data.Entity.Core.Common.CommandTrees.DbJoinExpression<Extension()>
Public Function LeftOuterJoin (left As DbExpression, right As DbExpression, joinCondition As Func(Of DbExpression, DbExpression, DbExpression)) As DbJoinExpressionParameters
- left
- DbExpression
A DbExpression that specifies the left set argument.
- right
- DbExpression
A DbExpression that specifies the right set argument.
- joinCondition
- Func<DbExpression,DbExpression,DbExpression>
A method representing the condition on which to join. This method must produce an expression with a Boolean result type that provides the logic of the join condition.
Returns
A new DbJoinExpression, with an DbExpressionKind of LeftOuterJoin, that represents the left outer join operation applied to the left and right input sets under the given join condition.
Exceptions
The expression produced by joinCondition is null.
The expression produced by joinCondition does not have a Boolean result type.
Applies to
LeftOuterJoin(DbExpressionBinding, DbExpressionBinding, DbExpression)
Creates a new DbJoinExpression that joins the sets specified by the left and right expression bindings, on the specified join condition, using LeftOuterJoin as the DbExpressionKind .
public static System.Data.Entity.Core.Common.CommandTrees.DbJoinExpression LeftOuterJoin (this System.Data.Entity.Core.Common.CommandTrees.DbExpressionBinding left, System.Data.Entity.Core.Common.CommandTrees.DbExpressionBinding right, System.Data.Entity.Core.Common.CommandTrees.DbExpression joinCondition);static member LeftOuterJoin : System.Data.Entity.Core.Common.CommandTrees.DbExpressionBinding * System.Data.Entity.Core.Common.CommandTrees.DbExpressionBinding * System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbJoinExpression<Extension()>
Public Function LeftOuterJoin (left As DbExpressionBinding, right As DbExpressionBinding, joinCondition As DbExpression) As DbJoinExpressionParameters
- left
- DbExpressionBinding
An DbExpressionBinding that specifies the left set argument.
- right
- DbExpressionBinding
An DbExpressionBinding that specifies the right set argument.
- joinCondition
- DbExpression
An expression that specifies the condition on which to join.
Returns
A new DbJoinExpression, with an DbExpressionKind of LeftOuterJoin, that represents the left outer join operation applied to the left and right input sets under the given join condition.
Exceptions
left, right or joinCondition is null.
joinCondition does not have a Boolean result type.
Applies to
Entity Framework