出现“列不属于表”的错误，求高手解答。

[qq258420235]

这阵子系统出现出现“列不属于表”的错误，通过追踪发现，比如我查A表的记录，偶尔会返回给我B表的记录。这个通过遍历返回的DataTable的Column发现的。下面是追踪的代码,不知道有没有人知道为什么。

    public string html = string.Empty;
    protected void Page_Load(object sender, EventArgs e)
    {
        html = string.Empty;
        html = GetHtml();        
    }

    protected string GetHtml()
    {
        string line = "<br/>";
        StringBuilder sb = new StringBuilder();
        using (SqlConnection Conn = new SqlConnection(ConfigurationSettings.AppSettings["SqlConnString"].ToString()))
        {
            Conn.Open();
            string sql = "Select * From Pro_Brand Order By Brand_Name Desc";
            using (SqlDataAdapter Sda = new SqlDataAdapter("Select * From Pro_Brand Order By Brand_Name Desc", Conn))
            {
                using (DataTable Dt = new DataTable())
                {
                    Sda.Fill(Dt);
                    sb.Append("sql语句:" + sql + line);
                    sb.Append("SqlDataAdapter.SelectCommand.CommandText:" + Sda.SelectCommand.CommandText + line);
                    sb.Append("DataTable.Columns.Count:" + Dt.Columns.Count + line);
                    //输出列名
                    for (int i = 0; i < Dt.Columns.Count; i++)
                    {
                        sb.Append("DataTable.Columns[" + i + "].ColumnName:" + Dt.Columns[i].ColumnName + line);
                    }
                    //输出列值
                    for (int i = 0; i < Dt.Rows.Count; i++)
                    {
                        sb.Append("DataTable.Rows[" + i + "] value:" + Dt.Rows[i][0] + line);
                    }
                }
            }
        }
        return sb.ToString();
    }

[骑着蜗牛去爬山]

http://blog.csdn.net/sollion/article/details/5753825