EntityConnection Constructor
Constructs the EntityConnection object with a connection not yet associated to a particular store.
Assembly: EntityFramework (in EntityFramework.dll)
| Name | Description | |
|---|---|---|
 | EntityConnection() | Initializes a new instance of the EntityConnection class. |
| EntityConnection(MetadataWorkspace^, DbConnection^) | Initializes a new instance of the EntityConnection class with a specified MetadataWorkspace and DbConnection. |
| EntityConnection(MetadataWorkspace^, DbConnection^, Boolean) | Constructs the EntityConnection from Metadata loaded in memory |
| EntityConnection(String^) | Initializes a new instance of the EntityConnection class, based on the connection string. |
EntityConnection Constructor ()
Initializes a new instance of the EntityConnection class.
EntityConnection Constructor (MetadataWorkspace^, DbConnection^)
Initializes a new instance of the EntityConnection class with a specified MetadataWorkspace and DbConnection.
public: [SuppressMessageAttribute("Microsoft.Reliability", "CA2000:DisposeObjectsBeforeLosingScope", Justification = "Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")] EntityConnection( MetadataWorkspace^ workspace, DbConnection^ connection )
Parameters
- workspace
-
Type:
System.Data.Entity.Core.Metadata.Edm::MetadataWorkspace^
A MetadataWorkspace to be associated with this EntityConnection.
- connection
-
Type:
System.Data.Common::DbConnection^
The underlying data source connection for this EntityConnection object.
| Exception | Condition |
|---|---|
| ArgumentNullException | The workspace or connection parameter is null. |
| ArgumentException | The conceptual model is missing from the workspace.-or-The mapping file is missing from the workspace.-or-The storage model is missing from the workspace.-or-The connection is not in a closed state. |
| ProviderIncompatibleException | The connection is not from an ADO.NET Entity Framework-compatible provider. |
EntityConnection Constructor (MetadataWorkspace^, DbConnection^, Boolean)
Constructs the EntityConnection from Metadata loaded in memory
public: [SuppressMessageAttribute("Microsoft.Reliability", "CA2000:DisposeObjectsBeforeLosingScope", Justification = "Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")] EntityConnection( MetadataWorkspace^ workspace, DbConnection^ connection, bool entityConnectionOwnsStoreConnection )
Parameters
- workspace
-
Type:
System.Data.Entity.Core.Metadata.Edm::MetadataWorkspace^
Workspace containing metadata information.
- connection
-
Type:
System.Data.Common::DbConnection^
Store connection.
- entityConnectionOwnsStoreConnection
-
Type:
System::Boolean
If set to true the store connection is disposed when the entity connection is disposed, otherwise the caller must dispose the store connection.
EntityConnection Constructor (String^)
Initializes a new instance of the EntityConnection class, based on the connection string.
public: [SuppressMessageAttribute("Microsoft.Reliability", "CA2000:DisposeObjectsBeforeLosingScope", Justification = "Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")] [SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")] EntityConnection( String^ connectionString )
Parameters
- connectionString
-
Type:
System::String^
The provider-specific connection string.
| Exception | Condition |
|---|---|
| ArgumentException | An invalid connection string keyword has been provided, or a required connection string keyword has not been provided. |