OracleConnection.State 属性

public:
 property System::Data::ConnectionState State { System::Data::ConnectionState get(); };

public:
 virtual property System::Data::ConnectionState State { System::Data::ConnectionState get(); };

[System.ComponentModel.Browsable(false)]
public System.Data.ConnectionState State { get; }

[System.ComponentModel.Browsable(false)]
public override System.Data.ConnectionState State { get; }

[<System.ComponentModel.Browsable(false)>]
member this.State : System.Data.ConnectionState

Public ReadOnly Property State As ConnectionState

Public Overrides ReadOnly Property State As ConnectionState

属性值

ConnectionState 值的按位组合。 默认值为 Closed。

实现

属性

BrowsableAttribute

示例

以下示例创建派生类 的实例， OracleConnection设置其 ConnectionString， 并显示其 State。

public void createOracleConnection()
{
    using (OracleConnection connection = new OracleConnection())
    {
        connection.ConnectionString = "Data Source=Oracle8i;Integrated Security=yes";
        connection.Open();
        Console.WriteLine("Connection State: " + connection.State);
    }
}

Public Sub createOracleConnection()
    Using connection As New OracleConnection()
        connection.ConnectionString = _
           "Data Source=Oracle8i;Integrated Security=yes"
        connection.Open()
        Console.WriteLine("Connection State: " & connection.State)
    End Using
End Sub

注解

允许的状态更改包括：

• 从 Closed 到 Open，使用 Open 对象的 方法 OracleConnection 。

• 从 Open 到 Closed，使用 Close 对象的 方法 OracleConnection 。

适用于