[em10]
用sql server 数据库或是oracle 数据库连接运行时都出现以下提示，在dataset数据集里可以预览到数据。那位高人帮忙解决一下，十分感激！

Imports System
Imports System.Data
Imports System.Data.oledb

Public Class form2

    Inherits System.Windows.Forms.Form
    Dim n As Integer = 0
    Dim myconnection As OleDbConnection = New OleDbConnection("server=server1;database=aaa;provider=msdaora.1;useid=sa;password=password")
    Dim mydataadapter As New OleDbDataAdapter
Dim mydataset As DataSet = New DataSet

Private Sub form2_load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        mydataadapter.SelectCommand = New OleDbCommand
        mydataadapter.SelectCommand.Connection = myconnection
     mydataadapter.SelectCommand.CommandText = "select * from info_userlist"
        mydataadapter.SelectCommand.CommandType = CommandType.Text
       mydataadapter.Fill(mydataset, "info_userlist")
      
  
               
未处理的“System.Data.OleDb.OleDbException”类型的异常出现在 system.data.dll 中。
[color=008000]mydataadapter.fill(mydataset,"info_userlist")[/color]