急!!System.Data.OleDb.OleDbException: 未指定的错误

[ly65702708]

我用access+asp.net+c#写个网页
当不停刷新的页面就回出现
System.Data.OleDb.OleDbException: 未指定的错误
请高手指点是什么地方的错误!
在这里先谢谢!

[chenanlin1981]

确认连接使用之后已经关闭
楼主把代码贴上来看看

[ly65702708]

public partial class ql_admins_news_ql_admin_news : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) {

bind();

}
}
private void bind() {

//try
//{
OleDbConnection conn = ConnDB2.nect();
conn.Open();
string sql = "select * from ql_articles order by ql_id desc";
OleDbDataAdapter dr = new OleDbDataAdapter(sql, conn);
DataSet ds = new DataSet();
dr.Fill(ds, "dstable");
dg1.DataSource = ds.Tables["dstable"].DefaultView;
dg1.DataBind();
ds.Dispose();
conn.Close();

// }
// catch (Exception) {

//Response.Write("数据错误！");

// }
}
public string showclass(int classid) {


OleDbConnection conn1 = ConnDB2.nect();
conn1.Open();
string sql1 = "select * from typeclass where id=" + classid;
string classname = null;
OleDbCommand comm = new OleDbCommand(sql1, conn1);
OleDbDataReader dr1 = comm.ExecuteReader();
if (dr1.Read())
{

classname = dr1["typename"].ToString();

}

return classname;
dr1.Close();
conn1.Close();
}
//判断是否审核
public string ok_show(int id) {



OleDbConnection conn2 = ConnDB2.nect();
conn2.Open();
string sql1 = "select * from ql_articles where ql_id=" + id;
string ok = null;
OleDbCommand comm = new OleDbCommand(sql1, conn2);
OleDbDataReader dr2 = comm.ExecuteReader();
if (dr2.Read())
{

if (Convert.ToInt32(dr2["ql_ok"]) == 1)
{

ok = "已审核";

}
else
{

ok="未审核";
}

}
dr2.Close();
return ok;

conn2.Close();
}