IDataEnvironment.GetDesignTimeConnection(DesignerDataConnection) 方法
定义
获取可以在设计时使用的数据库连接。Gets a database connection that can be used at design time.
public:
System::Data::Common::DbConnection ^ GetDesignTimeConnection(System::ComponentModel::Design::Data::DesignerDataConnection ^ connection);
public System.Data.Common.DbConnection GetDesignTimeConnection (System.ComponentModel.Design.Data.DesignerDataConnection connection);
abstract member GetDesignTimeConnection : System.ComponentModel.Design.Data.DesignerDataConnection -> System.Data.Common.DbConnection
Public Function GetDesignTimeConnection (connection As DesignerDataConnection) As DbConnection
参数
- connection
- DesignerDataConnection
所需的数据连接。The desired data connection.
返回
一个可以在设计时使用的 DbConnection 对象。A DbConnection object that can be used at design time.
注解
GetDesignTimeConnection方法返回与控件设计器可以使用的数据存储区的有效连接。The GetDesignTimeConnection method returns a valid, open connection to the data store that can be used by the control designer.
控件设计器应使用 GetDesignTimeConnection 来获取数据连接,并且不应尝试使用属性打开连接 ConnectionString 。Control designers should use the GetDesignTimeConnection to obtain a data connection and should not attempt to open a connection using the ConnectionString property.