未指定错误：打开OleDbConnection时

Question

• 使用Office 2010在Windows XP上出现未指定的错误。
• 问题可以在某些机器上重现，而不是全部。

代码

  Dim dbConn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\test\data.mdb")
   try
   {
   dbConn.Open() 
   }

异常

Exception:   at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString   constr, OleDbConnection connection)
   at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions    options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
   at    System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection    owningConnection, DbConnectionPoolGroup poolGroup)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.OleDb.OleDbConnection.Open()

Answer 1

试试这个

Dim dbConn As  OLEDBConnection
Set dbConn = New Connection
dbConn.Open "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\test\data.mdb;"

您需要声明dcConn，然后在单独的语句中设置它。