Method LeftJoin

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LeftJoin<T, TKey>(DbSet<T>, TKey, out T)

Constructs SQL LEFT JOIN.

Declaration
public DbAggregateQueryBuilder LeftJoin<T, TKey>(DbSet<T> dbSet, TKey left, out T _)

    where T : class, IEntity<TKey>, new()

    where TKey : CandidateKey
Parameters
Type Name Description
DbSet<T> dbSet

The target DbSet.
TKey left

Left side key of the join.
T _

The entity object of the target DbSet for further SQL construction.
Returns
Type Description
DbAggregateQueryBuilder

This aggregate query builder for fluent coding.
Type Parameters
Name Description
T

Entity type of the target DbSet.
TKey

Type of the candidate key to join.
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LeftJoin<T, TKey>(DbSet<T>, TKey, Func<T, TKey>, out T)

Constructs SQL LEFT JOIN.

Declaration
public DbAggregateQueryBuilder LeftJoin<T, TKey>(DbSet<T> dbSet, TKey left, Func<T, TKey> right, out T _)

    where T : class, IEntity, new()

    where TKey : CandidateKey
Parameters
Type Name Description
DbSet<T> dbSet

The target DbSet.
TKey left

Left side key of the join.
System.Func<T, TKey> right

The delegate to get right side key of the join.
T _

The entity object of the target DbSet for further SQL construction.
Returns
Type Description
DbAggregateQueryBuilder

This aggregate query builder for fluent coding.
Type Parameters
Name Description
T

Entity type of the target DbSet.
TKey

Type of the candidate key to join.