SqlCeConnection 构造函数 (String)

使用指定的连接字符串初始化 SqlCeConnection 类的新实例。

命名空间:  System.Data.SqlServerCe
程序集:  System.Data.SqlServerCe(在 System.Data.SqlServerCe.dll 中)

语法

声明
Public Sub New ( _
    connectionString As String _
)
用法
Dim connectionString As String

Dim instance As New SqlCeConnection(connectionString)
public SqlCeConnection(
    string connectionString
)
public:
SqlCeConnection(
    String^ connectionString
)
new : 
        connectionString:string -> SqlCeConnection
public function SqlCeConnection(
    connectionString : String
)

参数

  • connectionString
    类型:System.String
    用于打开数据库的连接。

注释

当创建 SqlCeConnection 的新实例时,读/写属性将会被设置为以下初始值,除非在 ConnectionString 属性中使用它们关联的关键字专门设置这些属性。

属性

初始值

ConnectionString

connectionString

DataSource

空字符串 ("")

只能使用 ConnectionString 属性更改这些属性的值。

示例

下面的示例创建并打开一个 SqlCeConnection

Dim conn As SqlCeConnection = Nothing

Try
    conn = New SqlCeConnection("Data Source = MyDatabase.sdf; Password ='<pwd>'")
    conn.Open()

    Dim cmd As SqlCeCommand = conn.CreateCommand()
    cmd.CommandText = "INSERT INTO Customers ([Customer ID], [Company Name]) Values('NWIND', 'Northwind Traders')"

    cmd.ExecuteNonQuery()
Finally
    conn.Close()
End Try
SqlCeConnection conn = null;

try
{
    conn = new SqlCeConnection("Data Source = MyDatabase.sdf; Password ='<pwd>'");
    conn.Open();

    SqlCeCommand cmd = conn.CreateCommand();
    cmd.CommandText = "INSERT INTO Customers ([Customer ID], [Company Name]) Values('NWIND', 'Northwind Traders')";

    cmd.ExecuteNonQuery();
}
finally
{
    conn.Close();
}

请参阅

参考

SqlCeConnection 类

SqlCeConnection 重载

System.Data.SqlServerCe 命名空间