QueryableMethods 类

定义

命名空间:

Microsoft.EntityFrameworkCore.Query

程序集:

Microsoft.EntityFrameworkCore.dll

程序包:

Microsoft.EntityFrameworkCore v10.0.0

Source:

QueryableMethods.cs

为可转换 LINQ 方法提供反射元数据的类。

[System.Runtime.CompilerServices.Nullable(0)]
public static class QueryableMethods

[<System.Runtime.CompilerServices.Nullable(0)>]
type QueryableMethods = class

Public Class QueryableMethods

继承

Object

QueryableMethods

特性

NullableAttribute

注解

有关详细信息和示例，请参阅 数据库提供程序和扩展的实现 以及 EF Core 查询的工作原理 。

属性

名称	说明
All	for MethodInfoAll<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
AnyWithoutPredicate	for MethodInfoAny<TSource>(IQueryable<TSource>)
AnyWithPredicate	for MethodInfoAny<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
AsQueryable	for MethodInfoAsQueryable<TElement>(IEnumerable<TElement>)
Cast	for MethodInfoCast<TResult>(IQueryable)
Concat	for MethodInfoConcat<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
Contains	for MethodInfoContains<TSource>(IQueryable<TSource>, TSource)
CountWithoutPredicate	for MethodInfoCount<TSource>(IQueryable<TSource>)
CountWithPredicate	for MethodInfoCount<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
DefaultIfEmptyWithArgument	for MethodInfoDefaultIfEmpty<TSource>(IQueryable<TSource>, TSource)
DefaultIfEmptyWithoutArgument	for MethodInfoDefaultIfEmpty<TSource>(IQueryable<TSource>)
Distinct	for MethodInfoDistinct<TSource>(IQueryable<TSource>)
ElementAt	for MethodInfoElementAt<TSource>(IQueryable<TSource>, Int32)
ElementAtOrDefault	for MethodInfoElementAtOrDefault<TSource>(IQueryable<TSource>, Int32)
Except	for MethodInfoExcept<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
FirstOrDefaultWithoutPredicate	for MethodInfoFirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
FirstOrDefaultWithPredicate	for MethodInfoFirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
FirstWithoutPredicate	for MethodInfoFirst<TSource>(IQueryable<TSource>)
FirstWithPredicate	for MethodInfoFirst<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
GroupByWithKeyElementResultSelector	for MethodInfoGroupBy<TSource,TKey,TElement,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource,TElement>>, Expression<Func<TKey, IEnumerable<TElement>,TResult>>)
GroupByWithKeyElementSelector	for MethodInfoGroupBy<TSource,TKey,TElement>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>)
GroupByWithKeyResultSelector	for MethodInfoGroupBy<TSource,TKey,TResult>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TKey,IEnumerable<TSource>,TResult>>)
GroupByWithKeySelector	for MethodInfoGroupBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)
GroupJoin	for MethodInfoGroupJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,IEnumerable<TInner>,TResult>>)
Intersect	for MethodInfoIntersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
Join	for MethodInfoJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,TInner,TResult>>)
LastOrDefaultWithoutPredicate	for MethodInfoLastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
LastOrDefaultWithPredicate	for MethodInfoLastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
LastWithoutPredicate	for MethodInfoLast<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
LastWithPredicate	for MethodInfoLast<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
LeftJoin	for MethodInfoLeftJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,TInner,TResult>>)
LongCountWithoutPredicate	for MethodInfoLongCount<TSource>(IQueryable<TSource>)
LongCountWithPredicate	for MethodInfoLongCount<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
MaxWithoutSelector	for MethodInfoMax<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)
MaxWithSelector	for MethodInfoMax<TSource>(IQueryable<TSource>)
MinWithoutSelector	for MethodInfoMin<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)
MinWithSelector	for MethodInfoMin<TSource>(IQueryable<TSource>)
OfType	for MethodInfoOfType<TResult>(IQueryable)
Order	for MethodInfoOrder<T>(IQueryable<T>)
OrderBy	for MethodInfoOrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)
OrderByDescending	for MethodInfoOrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)
OrderDescending	for MethodInfoOrderDescending<T>(IQueryable<T>)
Reverse	for MethodInfoReverse<TSource>(IQueryable<TSource>)
RightJoin	for MethodInfoRightJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,TInner,TResult>>)
Select	for MethodInfoSelect<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)
SelectManyWithCollectionSelector	for MethodInfoSelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)
SelectManyWithoutCollectionSelector	for MethodInfoSelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TResult>>>)
SingleOrDefaultWithoutPredicate	for MethodInfoSingleOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
SingleOrDefaultWithPredicate	for MethodInfoSingleOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
SingleWithoutPredicate	for MethodInfoSingle<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
SingleWithPredicate	for MethodInfoSingle<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
Skip	for MethodInfoSkip<TSource>(IQueryable<TSource>, Int32)
SkipWhile	for MethodInfoSkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
Take	for MethodInfoTake<TSource>(IQueryable<TSource>, Int32)
TakeWhile	for MethodInfoTakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)
ThenBy	for MethodInfoThenBy<TSource,TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource,TKey>>)
ThenByDescending	for MethodInfoThenByDescending<TSource,TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource,TKey>>)
Union	for MethodInfoUnion<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
Where	for MethodInfoWhere<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)

方法

名称	说明
GetAverageWithoutSelector(Type)	返回MethodInfoQueryable.Average没有给定类型的选择器的方法。
GetAverageWithSelector(Type)	返回MethodInfoQueryable.Average具有给定类型的选择器的方法。
GetSumWithoutSelector(Type)	返回MethodInfoQueryable.Sum没有给定类型的选择器的方法。
GetSumWithSelector(Type)	返回MethodInfoQueryable.Sum具有给定类型的选择器的方法。
IsAverageWithoutSelector(MethodInfo)	检查给定 MethodInfo 是否为无选择器之 Queryable.Average 一。
IsAverageWithSelector(MethodInfo)	检查给定 MethodInfo 是否为选择器之 Queryable.Average 一。
IsSumWithoutSelector(MethodInfo)	检查给定 MethodInfo 是否为无选择器之 Queryable.Sum 一。
IsSumWithSelector(MethodInfo)	检查给定 MethodInfo 是否为选择器之 Queryable.Sum 一。