QueryableMethodTranslatingExpressionVisitor.TranslateSelectMany 方法

定义

命名空间:

Microsoft.EntityFrameworkCore.Query

程序集:

Microsoft.EntityFrameworkCore.dll

包:

Microsoft.EntityFrameworkCore v8.0.0

重载

TranslateSelectMany(ShapedQueryExpression, LambdaExpression)	SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TResult>>>)转换给定源上的方法。
TranslateSelectMany(ShapedQueryExpression, LambdaExpression, LambdaExpression)	SelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)转换给定源上的方法。

TranslateSelectMany(ShapedQueryExpression, LambdaExpression)

SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TResult>>>)转换给定源上的方法。

protected abstract Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression? TranslateSelectMany (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.LambdaExpression selector);

abstract member TranslateSelectMany : Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression * System.Linq.Expressions.LambdaExpression -> Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression

Protected MustOverride Function TranslateSelectMany (source As ShapedQueryExpression, selector As LambdaExpression) As ShapedQueryExpression

参数

source

ShapedQueryExpression

对其应用运算符的形状查询。

selector

LambdaExpression

调用中提供的选择器。

返回

ShapedQueryExpression

转换后的形状查询。

TranslateSelectMany(ShapedQueryExpression, LambdaExpression, LambdaExpression)

SelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)转换给定源上的方法。

protected abstract Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression? TranslateSelectMany (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.LambdaExpression collectionSelector, System.Linq.Expressions.LambdaExpression resultSelector);

abstract member TranslateSelectMany : Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression * System.Linq.Expressions.LambdaExpression * System.Linq.Expressions.LambdaExpression -> Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression

Protected MustOverride Function TranslateSelectMany (source As ShapedQueryExpression, collectionSelector As LambdaExpression, resultSelector As LambdaExpression) As ShapedQueryExpression

参数

source

ShapedQueryExpression

对其应用运算符的形状查询。

collectionSelector

LambdaExpression

调用中提供的集合选择器。

resultSelector

LambdaExpression

调用中提供的结果选择器。

返回

ShapedQueryExpression

转换后的形状查询。