尝试将表单数据放入Hash表中，然后放入会话中

Question

我正在尝试将表单值传递到将使用类来执行存储过程的页面。为了从表单到页面获取值，我将所有数据放入哈希表中。进入哈希表后，我将其放入会话中。挑战在于数据没有进入会话。

这是将表单放入哈希表和会话的代码。

public partial class addRegistration : System.Web.UI.Page
{


    //variables for transaction amounts
    public int type = 4;
    public string acsamt = "0";
    public int acscontribution = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
        object sessionObject = Session["registration"];
    }
    protected void On_Click(object sender, EventArgs e)
    {
        Hashtable htReg = new Hashtable();
        htReg.Add("sponsor", sponsorName.Text);
        htReg.Add("salutation", salutation.SelectedValue.ToString());
        htReg.Add("contact_fname", contactPerson_fname.Text);
        htReg.Add("contact_lname", contactPerson_lname.Text);
        htReg.Add("street", street.Text);
        htReg.Add("city", city.Text);
        htReg.Add("statecode", statecode.SelectedValue.ToString());
        htReg.Add("zip", zip.Text);
        htReg.Add("email", custemail.Text);
        htReg.Add("phone", phone.Text);
        htReg.Add("invoiceNumber", invoiceNum.Text);
        htReg.Add("regType", type);
        htReg.Add("acsamount", acsamt);
        htReg.Add("acscontribution", acscontribution);
        htReg.Add("player1", p1_name.Text);
        htReg.Add("player2", p2_name.Text);
        htReg.Add("player3", p3_name.Text);
        htReg.Add("player4", p4_name.Text);
        Session["registration"] = htReg;
    }

}

以下是我从会话中获取数据的另一面。

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Hashtable htReg = new Hashtable();
            htReg = (Hashtable)Session["registration"];
            dbAction db = new dbAction();
            db.AddRegistration(htReg);
        }
    }

使用会话/哈希表是否无法实现此目的？