我应该怎样更改这个内容:
using (SqlCommand myCommand = myConnection.CreateCommand())
{
myConnection.Open();
myCommand.CommandText = "SELECT FormID FROM tbl_Form";
using (SqlDataReader reader = myCommand.ExecuteReader())
{
while (reader.Read())
{
int FormID = reader.GetInt32(reader.GetOrdinal("FormID"));
MessageBox.Show(FormID.ToString());
}
}
}
如何获取 MAX(FormID) ?
我的自然倾向是在FormID周围加上MAX,但我得到了一个IndexOutOfRange异常。