小编ema*_*ica的帖子

我不知道如何处理从静态函数返回的多变量类对象.

您不能将foreach语句与对象一起使用.

如何从静态函数中获取一个类对象数组？

Default.aspx.cs

protected void Button1_Click(object sender, EventArgs e)
{
    ID = TextBox1.Text;
    object returnedData = Getdata(ID);
    ????

}
public static object Getdata(string ID)
{
    DataSet ds = new DataSet();
    DataTable dt = new DataTable();
    List<dataclass> returndata = new List<dataclass>();
    dataclass dc = new dataclass();
    string connStr = ConfigurationManager.ConnectionStrings["jsonobject"].ConnectionString;
    string cmdStr = "SELECT ([idd],[datetime],[col1],[col2],[col3]) FROM [jsondata] WHERE [idd]=@idd;";
    try
    {
        using (SqlConnection conn = new SqlConnection(connStr))
        {
            using (SqlCommand cmd = new SqlCommand(cmdStr, conn))
            {
                conn.Open();
                cmd.Parameters.AddWithValue("@idd", …