EdmFunctions.Count(DbExpression) Method
Definition
Important
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Creates a DbFunctionExpression that invokes the canonical 'Count' function over the specified collection. The result type of the expression is Edm.Int32.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbFunctionExpression ^ Count(System::Data::Common::CommandTrees::DbExpression ^ collection);
public static System.Data.Common.CommandTrees.DbFunctionExpression Count (this System.Data.Common.CommandTrees.DbExpression collection);
static member Count : System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function Count (collection As DbExpression) As DbFunctionExpression
Parameters
- collection
- DbExpression
An expression that specifies the collection over which the count value should be computed.
Returns
A new DbFunctionExpression that produces the count value.
Exceptions
collection
is null
.
collection
is invalid.
Applies to
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