DbContext Constructor (System.Data.Entity)

Initializes a new instance of the DbContext class.

Namespace: System.Data.Entity
Assembly: EntityFramework (in EntityFramework.dll)

Overload List

	Name	Description
	DbContext()	Constructs a new context instance using conventions to create the name of the database to which a connection will be made. The by-convention name is the full name (namespace + class name) of the derived context class. See the class remarks for how this is used to create a connection.
	DbContext(DbCompiledModel^)	Constructs a new context instance using conventions to create the name of the database to which a connection will be made, and initializes it from the given model. The by-convention name is the full name (namespace + class name) of the derived context class. See the class remarks for how this is used to create a connection.
	DbContext(DbConnection^, Boolean)	Constructs a new context instance using the existing connection to connect to a database. The connection will not be disposed when the context is disposed if contextOwnsConnection is false.
	DbContext(DbConnection^, DbCompiledModel^, Boolean)	Constructs a new context instance using the existing connection to connect to a database, and initializes it from the given model. The connection will not be disposed when the context is disposed if contextOwnsConnection is false.
	DbContext(ObjectContext^, Boolean)	Constructs a new context instance around an existing ObjectContext.
	DbContext(String^)	Constructs a new context instance using the given string as the name or connection string for the database to which a connection will be made. See the class remarks for how this is used to create a connection.
	DbContext(String^, DbCompiledModel^)	Constructs a new context instance using the given string as the name or connection string for the database to which a connection will be made, and initializes it from the given model. See the class remarks for how this is used to create a connection.

DbContext Constructor ()

Constructs a new context instance using conventions to create the name of the database to which a connection will be made. The by-convention name is the full name (namespace + class name) of the derived context class. See the class remarks for how this is used to create a connection.

Syntax

protected:
[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
DbContext()

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DbContext Constructor (DbCompiledModel^)

Constructs a new context instance using conventions to create the name of the database to which a connection will be made, and initializes it from the given model. The by-convention name is the full name (namespace + class name) of the derived context class. See the class remarks for how this is used to create a connection.

Syntax

protected:
[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
DbContext(
	DbCompiledModel^ model
)

Parameters

model: Type: System.Data.Entity.Infrastructure::DbCompiledModel^
The model that will back this context.

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DbContext Constructor (DbConnection^, Boolean)

Constructs a new context instance using the existing connection to connect to a database. The connection will not be disposed when the context is disposed if contextOwnsConnection is false.

Syntax

public:
[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
DbContext(
	DbConnection^ existingConnection,
	bool contextOwnsConnection
)

Parameters

existingConnection: Type: System.Data.Common::DbConnection^
An existing connection to use for the new context.

contextOwnsConnection: Type: System::Boolean
If set to true the connection is disposed when the context is disposed, otherwise the caller must dispose the connection.

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DbContext Constructor (DbConnection^, DbCompiledModel^, Boolean)

Constructs a new context instance using the existing connection to connect to a database, and initializes it from the given model. The connection will not be disposed when the context is disposed if contextOwnsConnection is false.

Syntax

public:
[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
DbContext(
	DbConnection^ existingConnection,
	DbCompiledModel^ model,
	bool contextOwnsConnection
)

Parameters

existingConnection: Type: System.Data.Common::DbConnection^
An existing connection to use for the new context.

model: Type: System.Data.Entity.Infrastructure::DbCompiledModel^
The model that will back this context.

contextOwnsConnection: Type: System::Boolean
If set to true the connection is disposed when the context is disposed, otherwise the caller must dispose the connection.

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DbContext Constructor (ObjectContext^, Boolean)

Constructs a new context instance around an existing ObjectContext.

Syntax

public:
DbContext(
	ObjectContext^ objectContext,
	bool dbContextOwnsObjectContext
)

Parameters

objectContext: Type: System.Data.Entity.Core.Objects::ObjectContext^
An existing ObjectContext to wrap with the new context.

dbContextOwnsObjectContext: Type: System::Boolean
If set to true the ObjectContext is disposed when the DbContext is disposed, otherwise the caller must dispose the connection.

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DbContext Constructor (String^)

Constructs a new context instance using the given string as the name or connection string for the database to which a connection will be made. See the class remarks for how this is used to create a connection.

Syntax

public:
[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
DbContext(
	String^ nameOrConnectionString
)

Parameters

nameOrConnectionString: Type: System::String^
Either the database name or a connection string.

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DbContext Constructor (String^, DbCompiledModel^)

Constructs a new context instance using the given string as the name or connection string for the database to which a connection will be made, and initializes it from the given model. See the class remarks for how this is used to create a connection.

Syntax

public:
[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
DbContext(
	String^ nameOrConnectionString,
	DbCompiledModel^ model
)

Parameters

nameOrConnectionString: Type: System::String^
Either the database name or a connection string.

model: Type: System.Data.Entity.Infrastructure::DbCompiledModel^
The model that will back this context.

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