Queryable
Aggregate<TSource>(IQueryable<TSource>, Expression<Func<TSource, TSource, TSource>>)- Aggregate<TSource, TAccumulate>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate, TSource, TAccumulate>>)
- Aggregate<TSource, TAccumulate, TResult>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate, TSource, TAccumulate>>, Expression<Func<TAccumulate, TResult>>)
- AggregateBy<TSource, TKey, TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, TAccumulate, Expression<Func<TAccumulate, TSource, TAccumulate>>, IEqualityComparer<TKey>)
- AggregateBy<TSource, TKey, TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey, TAccumulate>>, Expression<Func<TAccumulate, TSource, TAccumulate>>, IEqualityComparer<TKey>)
- All<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- Any<TSource>(IQueryable<TSource>)
- Any<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- Append<TSource>(IQueryable<TSource>, TSource)
- AsQueryable(IEnumerable)
- AsQueryable<TElement>(IEnumerable<TElement>)
- Average(IQueryable<Decimal?>)
- Average(IQueryable<Decimal>)
- Average(IQueryable<Double?>)
- Average(IQueryable<Double>)
- Average(IQueryable<Int32?>)
- Average(IQueryable<Int32>)
- Average(IQueryable<Int64?>)
- Average(IQueryable<Int64>)
- Average(IQueryable<Single?>)
- Average(IQueryable<Single>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Decimal?>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Decimal>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Double?>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Double>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32?>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int64?>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int64>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Single?>>)
- Average<TSource>(IQueryable<TSource>, Expression<Func<TSource, Single>>)
- Cast<TResult>(IQueryable)
- Chunk<TSource>(IQueryable<TSource>, Int32)
- Concat<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
- Contains<TSource>(IQueryable<TSource>, TSource)
- Contains<TSource>(IQueryable<TSource>, TSource, IEqualityComparer<TSource>)
- Count<TSource>(IQueryable<TSource>)
- Count<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- CountBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)
- DefaultIfEmpty<TSource>(IQueryable<TSource>)
- DefaultIfEmpty<TSource>(IQueryable<TSource>, TSource)
- Distinct<TSource>(IQueryable<TSource>)
- Distinct<TSource>(IQueryable<TSource>, IEqualityComparer<TSource>)
- DistinctBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>)
- DistinctBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)
- ElementAt<TSource>(IQueryable<TSource>, Index)
- ElementAt<TSource>(IQueryable<TSource>, Int32)
- ElementAtOrDefault<TSource>(IQueryable<TSource>, Index)
- ElementAtOrDefault<TSource>(IQueryable<TSource>, Int32)
- Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
- Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)
- ExceptBy<TSource, TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource, TKey>>)
- ExceptBy<TSource, TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)
- First<TSource>(IQueryable<TSource>)
- First<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- FirstOrDefault<TSource>(IQueryable<TSource>)
- FirstOrDefault<TSource>(IQueryable<TSource>, TSource)
- FirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- FirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>, TSource)
- GroupBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>)
- GroupBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)
- GroupBy<TSource, TKey, TElement>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource, TElement>>)
- GroupBy<TSource, TKey, TElement>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource, TElement>>, IEqualityComparer<TKey>)
- GroupBy<TSource, TKey, TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey, IEnumerable<TSource>, TResult>>)
- GroupBy<TSource, TKey, TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey, IEnumerable<TSource>, TResult>>, IEqualityComparer<TKey>)
- GroupBy<TSource, TKey, TElement, TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource, TElement>>, Expression<Func<TKey, IEnumerable<TElement>, TResult>>)
- GroupBy<TSource, TKey, TElement, TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource, TElement>>, Expression<Func<TKey, IEnumerable<TElement>, TResult>>, IEqualityComparer<TKey>)
- GroupJoin<TOuter, TInner, TKey, TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, IEnumerable<TInner>, TResult>>)
- GroupJoin<TOuter, TInner, TKey, TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, IEnumerable<TInner>, TResult>>, IEqualityComparer<TKey>)
- Index<TSource>(IQueryable<TSource>)
- Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
- Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)
- IntersectBy<TSource, TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource, TKey>>)
- IntersectBy<TSource, TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)
- Join<TOuter, TInner, TKey, TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, TInner, TResult>>)
- Join<TOuter, TInner, TKey, TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, TInner, TResult>>, IEqualityComparer<TKey>)
- Last<TSource>(IQueryable<TSource>)
- Last<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- LastOrDefault<TSource>(IQueryable<TSource>)
- LastOrDefault<TSource>(IQueryable<TSource>, TSource)
- LastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- LastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>, TSource)
- LongCount<TSource>(IQueryable<TSource>)
- LongCount<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- Max<TSource>(IQueryable<TSource>)
- Max<TSource>(IQueryable<TSource>, IComparer<TSource>)
- Max<TSource, TResult>(IQueryable<TSource>, Expression<Func<TSource, TResult>>)
- MaxBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>)
- MaxBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IComparer<TSource>)
- Min<TSource>(IQueryable<TSource>)
- Min<TSource>(IQueryable<TSource>, IComparer<TSource>)
- Min<TSource, TResult>(IQueryable<TSource>, Expression<Func<TSource, TResult>>)
- MinBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>)
- MinBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IComparer<TSource>)
- OfType<TResult>(IQueryable)
- Order<T>(IQueryable<T>)
- Order<T>(IQueryable<T>, IComparer<T>)
- OrderBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>)
- OrderBy<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IComparer<TKey>)
- OrderByDescending<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>)
- OrderByDescending<TSource, TKey>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, IComparer<TKey>)
- OrderDescending<T>(IQueryable<T>)
- OrderDescending<T>(IQueryable<T>, IComparer<T>)
- Prepend<TSource>(IQueryable<TSource>, TSource)
- Reverse<TSource>(IQueryable<TSource>)
- Select<TSource, TResult>(IQueryable<TSource>, Expression<Func<TSource, TResult>>)
- Select<TSource, TResult>(IQueryable<TSource>, Expression<Func<TSource, Int32, TResult>>)
- SelectMany<TSource, TResult>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TResult>>>)
- SelectMany<TSource, TResult>(IQueryable<TSource>, Expression<Func<TSource, Int32, IEnumerable<TResult>>>)
- SelectMany<TSource, TCollection, TResult>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TCollection>>>, Expression<Func<TSource, TCollection, TResult>>)
- SelectMany<TSource, TCollection, TResult>(IQueryable<TSource>, Expression<Func<TSource, Int32, IEnumerable<TCollection>>>, Expression<Func<TSource, TCollection, TResult>>)
- SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
- SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)
- Single<TSource>(IQueryable<TSource>)
- Single<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- SingleOrDefault<TSource>(IQueryable<TSource>)
- SingleOrDefault<TSource>(IQueryable<TSource>, TSource)
- SingleOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- SingleOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>, TSource)
- Skip<TSource>(IQueryable<TSource>, Int32)
- SkipLast<TSource>(IQueryable<TSource>, Int32)
- SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32, Boolean>>)
- Sum(IQueryable<Decimal?>)
- Sum(IQueryable<Decimal>)
- Sum(IQueryable<Double?>)
- Sum(IQueryable<Double>)
- Sum(IQueryable<Int32?>)
- Sum(IQueryable<Int32>)
- Sum(IQueryable<Int64?>)
- Sum(IQueryable<Int64>)
- Sum(IQueryable<Single?>)
- Sum(IQueryable<Single>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Decimal?>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Decimal>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Double?>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Double>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32?>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int64?>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int64>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Single?>>)
- Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource, Single>>)
- Take<TSource>(IQueryable<TSource>, Int32)
- Take<TSource>(IQueryable<TSource>, Range)
- TakeLast<TSource>(IQueryable<TSource>, Int32)
- TakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- TakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32, Boolean>>)
- ThenBy<TSource, TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource, TKey>>)
- ThenBy<TSource, TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource, TKey>>, IComparer<TKey>)
- ThenByDescending<TSource, TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource, TKey>>)
- ThenByDescending<TSource, TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource, TKey>>, IComparer<TKey>)
- Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>)
- Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)
- UnionBy<TSource, TKey>(IQueryable<TSource>, IEnumerable<TSource>, Expression<Func<TSource, TKey>>)
- UnionBy<TSource, TKey>(IQueryable<TSource>, IEnumerable<TSource>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)
- Where<TSource>(IQueryable<TSource>, Expression<Func<TSource, Boolean>>)
- Where<TSource>(IQueryable<TSource>, Expression<Func<TSource, Int32, Boolean>>)
- Zip<TFirst, TSecond>(IQueryable<TFirst>, IEnumerable<TSecond>)
- Zip<TFirst, TSecond, TThird>(IQueryable<TFirst>, IEnumerable<TSecond>, IEnumerable<TThird>)
- Zip<TFirst, TSecond, TResult>(IQueryable<TFirst>, IEnumerable<TSecond>, Expression<Func<TFirst, TSecond, TResult>>)
net9.0
namespace System.Linq
{
public static class Queryable
{
public static IQueryable<KeyValuePair<TKey, int>>! CountBy<TSource, TKey>(this IQueryable<TSource>! source, Expression<Func<TSource, TKey>!>! keySelector, IEqualityComparer<TKey>? comparer = null)
where TKey, notnull;
}
}
| .NET | 9.0 |
|---|---|
Information specific to net9.0 | |
| Assembly | System.Linq.Queryable , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a |
| Referencing | The API is automatically referenced. |
| Preview | The API is contained in a preview framework. |
| Platform Restrictions | This API is supported on all platforms. |
- Built-in API
- Package-provided API