ObjectContext 构造函数 (EntityConnection, String)

[本页针对的是实体框架版本 6。最新版本以“实体框架”NuGet 包的形式提供。有关实体框架的更多信息，请参见 msdn.com/data/ef。]

使用给定连接和实体容器名称初始化 ObjectContext 类的新实例。

命名空间：  System.Data.Entity.Core.Objects
程序集：  EntityFramework（在 EntityFramework.dll 中）

语法

声明
<SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors", Justification := "Class is internal and methods are made virtual for testing purposes only. They cannot be overrided by user.")> _
Protected Sub New ( _
    connection As EntityConnection, _
    defaultContainerName As String _
)
用法
Dim connection As EntityConnection 
Dim defaultContainerName As String 

Dim instance As New ObjectContext(connection, _
    defaultContainerName)

[SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors", Justification = "Class is internal and methods are made virtual for testing purposes only. They cannot be overrided by user.")]
protected ObjectContext(
    EntityConnection connection,
    string defaultContainerName
)

[SuppressMessageAttribute(L"Microsoft.Usage", L"CA2214:DoNotCallOverridableMethodsInConstructors", Justification = L"Class is internal and methods are made virtual for testing purposes only. They cannot be overrided by user.")]
protected:
ObjectContext(
    EntityConnection^ connection, 
    String^ defaultContainerName
)

[<SuppressMessageAttribute("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors", Justification = "Class is internal and methods are made virtual for testing purposes only. They cannot be overrided by user.")>]
new : 
        connection:EntityConnection * 
        defaultContainerName:string -> ObjectContext

protected function ObjectContext(
    connection : EntityConnection, 
    defaultContainerName : String
)

参数

• connection
  类型：System.Data.Entity.Core.EntityClient.EntityConnection
  一种包含对模型和数据源连接的引用的 EntityConnection。

• defaultContainerName
  类型：System.String
  默认实体容器的名称。 通过此方法设置 defaultContainerName 时，该属性为只读属性。

异常

请参阅

参考

ObjectContext 类

ObjectContext 重载

System.Data.Entity.Core.Objects 命名空间