提示datareader已经打开.帮帮忙!
j9988 2006-01-14 10:45:15 string sql="select * from config";
SqlCommand sc = new SqlCommand(sql,conn);
SqlDataAdapter sda = new SqlDataAdapter(sc);
DataSet ds=new DataSet();
try
{
sda.Fill(ds,"config");
}
finally
{
sda.Dispose();
}
DataTable dt=ds.Tables[0];
return dt;
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sda.Fill(ds,"config"); //可能100次点击会出现几次这句错.特别是网络或服务器忙时. 有没有办法解决?
它提示的是"打开此连接的datareader已经打开 "