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QueryableExMinByTSource, TKey Method (IQueryableTSource, ExpressionFuncTSource, TKey, IComparerTKey)
Returns the elements with the minimum key value by using the specified comparer to compare key values.

Namespace: System.Linq
Assembly: System.Interactive.Providers (in System.Interactive.Providers.dll) Version: 1.2.0.0
Syntax
C#
Copy
public static IList<TSource> MinBy<TSource, TKey>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, TKey>> keySelector,
	IComparer<TKey> comparer
)

Parameters

source
Type: System.LinqIQueryableTSource
Source sequence.
keySelector
Type: System.Linq.ExpressionsExpressionFuncTSource, TKey
Key selector used to extract the key for each element in the sequence.
comparer
Type: System.Collections.GenericIComparerTKey
Comparer used to determine the minimum key value.

Type Parameters

TSource
Source sequence element type.
TKey
Key type.

Return Value

Type: IListTSource
List with the elements that share the same minimum key value.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
See Also