สอบถามปัญหาเรื่อง VB 2008+ SQL Server 2000 สลับโหมดทดสอบโปรแกรม

'Public Strcon As String = "Data Source=BEX-NB0020; Integrated Security=SSPI; Server=(local); Initial Catalog=db_checksa_sa; User ID=; Password=;"

    'Public Strcon As String = "server = BEX-NB0020;database =db_checksa_sa;Trusted_Connection = yes"

    'Public Strcon As String = "Integrated Security=SSPI; Server=BEX-NB0020; Initial Catalog=db_checksa_sa; User ID=; Password=;"

    'Public Const strCon = "Data Source=MSSQL.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=db_checksa_sa;Server=BEX-NB0020"

    Public Const strCon = "Server=BEX-NB0020;Database=db_checksa_sa;Trusted_Connection=True;"