ObjectContext 构造函数 (String)

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使用给定连接字符串和默认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.Reliability", "CA2000:DisposeObjectsBeforeLosingScope", Justification := "Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")> _
Public Sub New ( _
    connectionString As String _
)
用法
Dim connectionString As String 

Dim instance As New ObjectContext(connectionString)

[SuppressMessageAttribute("Microsoft.Reliability", "CA2000:DisposeObjectsBeforeLosingScope", Justification = "Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")]
public ObjectContext(
    string connectionString
)

[SuppressMessageAttribute(L"Microsoft.Reliability", L"CA2000:DisposeObjectsBeforeLosingScope", Justification = L"Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")]
public:
ObjectContext(
    String^ connectionString
)

[<SuppressMessageAttribute("Microsoft.Reliability", "CA2000:DisposeObjectsBeforeLosingScope", Justification = "Object is in fact passed to property of the class and gets Disposed properly in the Dispose() method.")>]
new : 
        connectionString:string -> ObjectContext

public function ObjectContext(
    connectionString : String
)

参数

• connectionString
  类型：System.String
  连接字符串，该连接字符串还提供对元数据信息的访问。

异常

请参阅

参考

ObjectContext 类

ObjectContext 重载

System.Data.Entity.Core.Objects 命名空间