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Queryable.Min(TSource, TResult) Method (IQueryable(TSource), Expression(Func(TSource, TResult)))

Invokes a projection function on each element of a generic IQueryable(T) and returns the minimum resulting value.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

static member Min : 
        source:IQueryable<'TSource> * 
        selector:Expression<Func<'TSource, 'TResult>> -> 'TResult 

Type Parameters


The type of the elements of source.


The type of the value returned by the function represented by selector.


Type: System.Linq.IQueryable(TSource)
A sequence of values to determine the minimum of.
Type: System.Linq.Expressions.Expression(Func(TSource, TResult))
A projection function to apply to each element.

Return Value

Type: TResult
The minimum value in the sequence.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryable(TSource). 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).


source or selector is a null reference (Nothing in Visual Basic).

This method has at least one parameter of type Expression(TDelegate) whose type argument is one of the Func(T, TResult) types. For these parameters, you can pass in a lambda expression and it will be compiled to an Expression(TDelegate).

The Min(TSource, TResult)(IQueryable(TSource), Expression(Func(TSource, TResult))) method generates a MethodCallExpression that represents calling Min(TSource, TResult)(IQueryable(TSource), Expression(Func(TSource, TResult))) itself as a constructed generic method. It then passes the MethodCallExpression to the Execute(TResult)(Expression) method of the IQueryProvider represented by the Provider property of the source parameter.

The query behavior that occurs as a result of executing an expression tree that represents calling Min(TSource, TResult)(IQueryable(TSource), Expression(Func(TSource, TResult))) depends on the implementation of the type of the source parameter. The expected behavior is that it invokes selector on each element in source and returns the minimum value.

The following code example demonstrates how to use Min(TSource, TResult)(IQueryable(TSource), Expression(Func(TSource, TResult))) to determine the minimum value in a sequence of projected values.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.