vb.net服务器连接重载

Question

我试图运行此代码，但它显示错误＆＃34;重载解析失败＆＃34;。

Conn = New OleDbConnection(ConnectionString)    
Dim serverConn As New Server(New ServerConnection(Conn))

以下是完整错误：

Overload resolution failed because no accessible 'New' can be called with these arguments:
'Public Sub New(serverInstance As String)': Value of type 'System.Data.OleDb.OleDbConnection' cannot be converted to 'String'.
'Public Sub New(sqlConnection As System.Data.SqlClient.SqlConnection)': Value of type 'System.Data.OleDb.OleDbConnection' cannot be converted to 'System.Data.SqlClient.SqlConnection'.
'Public Sub New(sci As Microsoft.SqlServer.Management.Common.SqlConnectionInfo)': Value of type 'System.Data.OleDb.OleDbConnection' cannot be converted to 'Microsoft.SqlServer.Management.Common.SqlConnectionInfo'.   

Answer 1

如果要管理MS SQL Server，则需要SqlConnection，而不是通用OleDbConnection。

将OleDbConnection替换为SqlConnection，或将ConnectionString权限传递给New Server()，而不首先实例化显式连接。