MetadataWorkspaceExtensions.IsManyToMany Method

Determines if the specified association is a many-to-many (*:*) association.

Namespace:  Microsoft.Data.Entity.Design.DatabaseGeneration
Assembly:  Microsoft.Data.Entity.Design.DatabaseGeneration (in Microsoft.Data.Entity.Design.DatabaseGeneration.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function IsManyToMany ( _
    assoc As AssociationType _
) As Boolean
'Usage
Dim assoc As AssociationType
Dim returnValue As Boolean

returnValue = assoc.IsManyToMany()

public static bool IsManyToMany(
    this AssociationType assoc
)

[ExtensionAttribute]
public:
static bool IsManyToMany(
    AssociationType^ assoc
)

public static function IsManyToMany(
    assoc : AssociationType
) : boolean

Parameters

• assoc
  Type: System.Data.Metadata.Edm.AssociationType
  An association in the conceptual or storage model.

Return Value

Type: System.Boolean
True if both ends of the specified association have a multiplicity of many (*); false otherwise.

Usage Note

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

Remarks

The IsManyToMany() method is used by the Generate Database Wizard when generating a database from a conceptual model.

Permissions

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

MetadataWorkspaceExtensions Class

MetadataWorkspaceExtensions Members

Microsoft.Data.Entity.Design.DatabaseGeneration Namespace

Other Resources

How to: Generate a Database from a Conceptual Model (Entity Data Model Tools)

Windows Workflow Foundation