我有以下代码:
Dim string_conectare As String = "Data Source=|DataDirectory|\Database1.sdf"
Dim conexiune As SqlConnection
conexiune = New SqlConnection(string_conectare)
conexiune.Open()
If conexiune.State = ConnectionState.Open Then
MsgBox("OK")
Else
MsgBox("not ok")
End If
如您所见,我想打开与数据库的连接,但每次我想测试它时都会收到此错误:
A network-related or instance-specific error occurred while establishing a
connection to SQL Server. The server was not found or was not accessible.
Verify that the instance name is correct and that SQL Server is
configured to allow remote connections. (provider: SQL Network Interfaces,
error: 26 - Error Locating Server/Instance Specified)
我挣扎了2个多小时,所以请帮助我!
后期编辑:
我试过这个:
Dim string_conectare As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\Database1.sdf;Persist Security Info=True"
Dim conexiune As OleDbConnection
conexiune = New OleDbConnection(string_conectare)
conexiune.Open()
If conexiune.State = ConnectionState.Open Then
MsgBox("OK")
Else
MsgBox("not ok")
End If
但它给我这个错误:
Unrecognized database format