DbContext Constructors
Definition
Important
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Overloads
| 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(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(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 |
| DbContext(ObjectContext, Boolean) |
Constructs a new context instance around an existing ObjectContext. |
| DbContext(ObjectContext, Boolean) |
Constructs a new context instance around an existing ObjectContext. |
| 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(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 |
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.
protected DbContext ();[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
protected DbContext ();Protected Sub New ()- Attributes
Applies to
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.
protected DbContext (System.Data.Entity.Infrastructure.DbCompiledModel model);[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
protected DbContext (System.Data.Entity.Infrastructure.DbCompiledModel model);new System.Data.Entity.DbContext : System.Data.Entity.Infrastructure.DbCompiledModel -> System.Data.Entity.DbContextProtected Sub New (model As DbCompiledModel)Parameters
- model
- DbCompiledModel
The model that will back this context.
- Attributes
Applies to
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.
public DbContext (string nameOrConnectionString);[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public DbContext (string nameOrConnectionString);new System.Data.Entity.DbContext : string -> System.Data.Entity.DbContextPublic Sub New (nameOrConnectionString As String)Parameters
- nameOrConnectionString
- String
Either the database name or a connection string.
- Attributes
Applies to
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.
public DbContext (System.Data.Common.DbConnection existingConnection, bool contextOwnsConnection);[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public DbContext (System.Data.Common.DbConnection existingConnection, bool contextOwnsConnection);new System.Data.Entity.DbContext : System.Data.Common.DbConnection * bool -> System.Data.Entity.DbContextPublic Sub New (existingConnection As DbConnection, contextOwnsConnection As Boolean)Parameters
- existingConnection
- DbConnection
An existing connection to use for the new context.
- contextOwnsConnection
- Boolean
If set to true the connection is disposed when the context is disposed, otherwise the caller must dispose the connection.
- Attributes
Applies to
DbContext(ObjectContext, Boolean)
Constructs a new context instance around an existing ObjectContext.
public DbContext (System.Data.Entity.Core.Objects.ObjectContext objectContext, bool dbContextOwnsObjectContext);new System.Data.Entity.DbContext : System.Data.Entity.Core.Objects.ObjectContext * bool -> System.Data.Entity.DbContextParameters
- objectContext
- ObjectContext
An existing ObjectContext to wrap with the new context.
- dbContextOwnsObjectContext
- Boolean
If set to true the ObjectContext is disposed when the DbContext is disposed, otherwise the caller must dispose the connection.
Applies to
DbContext(ObjectContext, Boolean)
Constructs a new context instance around an existing ObjectContext.
public DbContext (System.Data.Objects.ObjectContext objectContext, bool dbContextOwnsObjectContext);new System.Data.Entity.DbContext : System.Data.Objects.ObjectContext * bool -> System.Data.Entity.DbContextParameters
- objectContext
- ObjectContext
- dbContextOwnsObjectContext
- Boolean
Applies to
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.
public DbContext (string nameOrConnectionString, System.Data.Entity.Infrastructure.DbCompiledModel model);[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public DbContext (string nameOrConnectionString, System.Data.Entity.Infrastructure.DbCompiledModel model);new System.Data.Entity.DbContext : string * System.Data.Entity.Infrastructure.DbCompiledModel -> System.Data.Entity.DbContextPublic Sub New (nameOrConnectionString As String, model As DbCompiledModel)Parameters
- nameOrConnectionString
- String
Either the database name or a connection string.
- model
- DbCompiledModel
The model that will back this context.
- Attributes
Applies to
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.
public DbContext (System.Data.Common.DbConnection existingConnection, System.Data.Entity.Infrastructure.DbCompiledModel model, bool contextOwnsConnection);[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public DbContext (System.Data.Common.DbConnection existingConnection, System.Data.Entity.Infrastructure.DbCompiledModel model, bool contextOwnsConnection);new System.Data.Entity.DbContext : System.Data.Common.DbConnection * System.Data.Entity.Infrastructure.DbCompiledModel * bool -> System.Data.Entity.DbContextPublic Sub New (existingConnection As DbConnection, model As DbCompiledModel, contextOwnsConnection As Boolean)Parameters
- existingConnection
- DbConnection
An existing connection to use for the new context.
- model
- DbCompiledModel
The model that will back this context.
- contextOwnsConnection
- Boolean
If set to true the connection is disposed when the context is disposed, otherwise the caller must dispose the connection.
- Attributes
Applies to
Entity Framework
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