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EdmFunctionAttribute(String, String) Constructor

  • Reference

Definition

Namespace:
System.Data.Objects.DataClasses
Assembly:
System.Data.Entity.dll

Initializes a new instance of the EdmFunctionAttribute class.

public:
 EdmFunctionAttribute(System::String ^ namespaceName, System::String ^ functionName);
public EdmFunctionAttribute (string namespaceName, string functionName);
new System.Data.Objects.DataClasses.EdmFunctionAttribute : string * string -> System.Data.Objects.DataClasses.EdmFunctionAttribute
Public Sub New (namespaceName As String, functionName As String)

Parameters

namespaceName
String

The namespace of the mapped-to function.

functionName
String

The name of the mapped-to function.

Remarks

An EdmFunctionAttribute links a common language runtime (CLR) method to another function. For example, the attribute can be used to map a CLR method to a function that is exposed by the storage provider, to a user-defined function in the database, or to a user-defined function in the conceptual model. Methods that have this attribute can be called from LINQ to Entities queries.

To use an EdmFunctionAttribute to map a CLR method to a function, the following must be true:

  • The return type of the CLR method must be compatible with the return type of the mapped-to function.

  • The argument types of the CLR method must be compatible with the argument types of the mapped-to function.

For information about compatible types, see Conceptual Model Types (CSDL).

Applies to

See also