小编jav*_*ute的帖子

我相信这个问题是在几个月前被问到的,但我相信我的情况有所不同,同样的规则也许不适用.

每次我执行此方法时都会弹出相同的错误.位置0没有行.如果我将[0]改为[1]或[15]; [1]等处没有行.这是否意味着我的数据库连接都没有？我应该写一些if语句来确定行是否在那里？

    public bool UpdateOrderToShipped(string order)
{
    orderNumber = order;
    string batch = ConfigurationManager.AppSettings["SuccessfulOrderBatch"];
    string statement = "UPDATE SOP10100 SET BACHNUMB = '"+ batch +"' WHERE SOPNUMBE = @SOPNUMBE";
    SqlCommand comm = new SqlCommand(statement, connectionPCI);
    comm.Parameters.Add("SOPNUMBE", orderNumber);
    try
    {
        comm.Connection.Open();
        comm.ExecuteNonQuery();
        comm.Connection.Close();
    }
    catch(Exception e)
    {
        comm.Connection.Close();
        KaplanFTP.errorMsg = "Database error: " + e.Message;
    }

    statement = "SELECT SOPTYPE FROM SOP10100 WHERE SOPNUMBE = @SOPNUMBE";
    comm.CommandText = statement;
    SqlDataAdapter da = new SqlDataAdapter(comm);
    DataTable dt = new DataTable();
    da.Fill(dt); …

有一个类似的问题在stackoverflow上没有答案,但我相信我非常接近解决它.但基本上,我的sql语句返回多个值,但标签中只显示一个值,而它应该是4或5个值.

  protected void btnPopulate_Click(object sender, EventArgs e)
    {

        SqlConnection con = new SqlConnection(strings.settings.connectionString);
        SqlCommand command = new SqlCommand("SELECT ID FROM dbo.MDRMASTER WHERE MASTERPID = @MASTERPID",con);
       command.Parameters.Add("@MASTERPID", SqlDbType.NVarChar).Value = txtMASTERID.Text;
        con.Open();
        SqlDataReader dr = command.ExecuteReader();
        while (dr.Read()) 
        {
            string ID = dr["ID"].ToString();
            lblIDs.Text = ID;
        }
        con.Close();
    }

任何帮助将不胜感激.谢谢!