如何修复抛出异常的指定强制转换

Question

这是我的代码

 SqlCommand cmd = new SqlCommand("SELECT Meeting.StartPlan " +
                "FROM Meeting " +
                "INNER JOIN meetingWho ON Meeting.meetingID = meetingWho.meetingID" +
                " and Who= '"+ Username +"'  ", con);
            SqlDataReader read = cmd.ExecuteReader();
            if (read.HasRows)
            {
                while (read.Read())
                {
                    Console.WriteLine("{0}/t{1}", read.GetInt32(0), read.GetString(1));
                    if (e.Day.DayNumberText == "read.GetInt32(0)")
                    {
                        e.Cell.BackColor = System.Drawing.Color.Red;
                    }
               }
            }</i>

并且在此行显示错误

  Console.WriteLine("{0}/t{1}", read.GetInt32(0), read.GetString(1));

我该怎么做才能解决这个问题？

Answer 1

read.GetString(1)会抛出此错误，因为在SELECT语句中，您只查询单个列。所以没有索引为1的列。

Answer 2

您在选择

中只有一列