Queryable.MaxBy Method
Definition
Important
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Overloads
MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>) |
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function. |
MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TSource>) |
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function. |
MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function.
public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
static TSource MaxBy(System::Linq::IQueryable<TSource> ^ source, System::Linq::Expressions::Expression<Func<TSource, TKey> ^> ^ keySelector);
public static TSource? MaxBy<TSource,TKey> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector);
static member MaxBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> -> 'Source
<Extension()>
Public Function MaxBy(Of TSource, TKey) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey))) As TSource
Type Parameters
- TSource
The type of the elements of source
.
- TKey
The type of key to compare elements by.
Parameters
- source
- IQueryable<TSource>
A sequence of values to determine the maximum value of.
- keySelector
- Expression<Func<TSource,TKey>>
A function to extract the key for each element.
Returns
The value with the maximum key in the sequence.
Exceptions
source
is null
.
No key extracted from source
implements the IComparable or IComparable<T> interface.
Applies to
MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TSource>)
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function.
public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
static TSource MaxBy(System::Linq::IQueryable<TSource> ^ source, System::Linq::Expressions::Expression<Func<TSource, TKey> ^> ^ keySelector, System::Collections::Generic::IComparer<TSource> ^ comparer);
public static TSource? MaxBy<TSource,TKey> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector, System.Collections.Generic.IComparer<TSource>? comparer);
static member MaxBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> * System.Collections.Generic.IComparer<'Source> -> 'Source
<Extension()>
Public Function MaxBy(Of TSource, TKey) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey)), comparer As IComparer(Of TSource)) As TSource
Type Parameters
- TSource
The type of the elements of source
.
- TKey
The type of key to compare elements by.
Parameters
- source
- IQueryable<TSource>
A sequence of values to determine the maximum value of.
- keySelector
- Expression<Func<TSource,TKey>>
A function to extract the key for each element.
- comparer
- IComparer<TSource>
The IComparer<T> to compare keys.
Returns
The value with the maximum key in the sequence.
Exceptions
source
is null
.
No key extracted from source
implements the IComparable or IComparable<T> interface.
Applies to
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