QueryableExtensions.Count Method

QueryableExtensionsCount Method

Returns the number of elements in a sequence.

Namespace: Kettic.AspNet.Data.Extensions
Assembly: Kettic.AspNet.Controls (in Kettic.AspNet.Controls.dll) Version: 2014.4.1129.0 (2014.04.1129.0)

Syntax

C++

Copy

public static int Count(
	this IQueryable source
)

<ExtensionAttribute> 
Public Shared Function Count ( 
	source As IQueryable
) As Integer

public:
[ExtensionAttribute]
static int Count(
	IQueryable^ source
)

static member Count : 
        source : IQueryable -> int

Parameters

source: Type: System.LinqIQueryable
The IQueryable that contains the elements to be counted.

Return Value

Type: Int32
The number of elements in the input sequence.

Usage Note

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

Exceptions

Exception	Condition
ArgumentNullException	source is null.

Reference

QueryableExtensions Class

Kettic.AspNet.Data.Extensions Namespace