How to get rid of the problem occured when saving two panel control data to database

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ASP.NET

C#3.5

hai all
i have strucked here
i have atextbox and one button so if i click one in textbox one panelcontrol with table should appear
so if i enter 2 in textbox two panelcontrols with tables in it should be displayed
up to here working fine when saving single table valuues to database they are inserting using storedprocesure up to here also fine when inserting two panelcontrols or threepanel with tables data to database here problem coming

they are saving like
for ex in database firstname is there they are inserting like ravi,ram,raj in firstname field
not like ram and raj have to be insert in next records they are saving in one record
below is my code plz helpme

public partial class addnewprac : System.Web.UI.Page
{
    int count;
    
    protected void Page_Load(object sender, EventArgs e)
    {
    
    }
    
    protected void Button1_Click(object sender, EventArgs e)
    {
        count = Convert.ToInt32(TextBox1.Text);
        for (int i = 0; i < count; i++)
        {
            // int index = Panel1.Controls.OfType<textbox>().ToList().Count + 1;
            
            Table tbldynamic = new Table();
            tbldynamic.ID = "tbl" + i.ToString();
            TableCell tc = new TableCell();
            TableCell tc1 = new TableCell();
            TableRow tr = new TableRow();
            Label lbl = new Label();
            
            lbl.ID = "lbluid";
            lbl.Text = "Studentfirstname:";
            tc.Controls.Add(lbl);
            
            TextBox userid = new TextBox();
            userid.ID = "txtuid"+i;
            tc1.Controls.Add(userid);
            tr.Cells.Add(tc);
            tr.Cells.Add(tc1);
            tbldynamic.Rows.Add(tr);
            
            tc = new TableCell();
            tc1 = new TableCell();
            tr = new TableRow();
            Label lblName = new Label();
            lblName.ID = "lblName";
            lblName.Text = "Studentlastname:";
            tc.Controls.Add(lblName);
            TextBox txtName = new TextBox();
            txtName.ID = "txtNamea"+i;
            tc1.Controls.Add(txtName);
            tr.Cells.Add(tc);
            tr.Cells.Add(tc1);
            tbldynamic.Rows.Add(tr);
            tc = new TableCell();
            tc1 = new TableCell();
            tr = new TableRow();
            Label goingsc = new Label();
            goingsc.ID = "lblEmaila";
            goingsc.Text = "Going to school:";
            tc.Controls.Add(goingsc);
            CheckBox chk = new CheckBox();
            chk.ID = "chkaa"+i;
            chk.Text = "yes";
            tc1.Controls.Add(chk);
            
            tr.Cells.Add(tc);
            tr.Cells.Add(tc1);
            tbldynamic.Rows.Add(tr);
            tc = new TableCell();
            tc1 = new TableCell();
            tr = new TableRow();
            Label lblEmailab = new Label();
            lblEmailab.ID = "lblEmail";
            lblEmailab.Text = "SCHOOLNAME:";
            tc.Controls.Add(lblEmailab);
            TextBox schoolname = new TextBox();
            schoolname.ID = "sname"+i;
            tc1.Controls.Add(schoolname);
            tr.Cells.Add(tc);
            tr.Cells.Add(tc1);
            tbldynamic.Rows.Add(tr);
            tc = new TableCell();
            tc1 = new TableCell();
            tr = new TableRow();
            Label grade = new Label();
            grade.ID = "lblEmailabc";
            grade.Text = "grade:";
            tc.Controls.Add(grade);
            DropDownList dpd = new DropDownList();
            ListItem[] items = new ListItem[3];
            items[0] = new ListItem("A Grade", "1");
            items[1] = new ListItem("B Grade", "2");
            
            items[2] = new ListItem("C Grade", "3");
            dpd.Items.AddRange(items);
            dpd.DataBind();
            dpd.ID = "select"+i;
            
            tc1.Controls.Add(dpd);
            tr.Cells.Add(tc);
            tr.Cells.Add(tc1);
            tbldynamic.Rows.Add(tr);
                        
            Panel1.Controls.Add(tbldynamic);
        }
    }

    protected void btnSubmit_click(object sender, EventArgs e)
    {
        TextBox firstname = (TextBox)Panel1.FindControl("txtuid");
        
        TextBox lastname = (TextBox)Panel1.FindControl("txtNamea");
        CheckBox chkk = (CheckBox)Panel1.FindControl("chkaa");
        TextBox txttt = (TextBox)Panel1.FindControl("sname");
        DropDownList dda = (DropDownList)Panel1.FindControl("select");
        Response.Write(firstname.Text);
        Response.Write(lastname.Text);
        Response.Write(chkk.Text);
        Response.Write(txttt.Text);
        Response.Write(dda.Text);
        SqlConnection con = new SqlConnection("Data Source=HOME;Initial Catalog=login;Integrated Security=True");
        
        SqlCommand cmd = new SqlCommand("[student info]", con);
        cmd.CommandType = System.Data.CommandType.StoredProcedure;
        con.Open();
        cmd.Parameters.AddWithValue("@sname", firstname.Text);
        cmd.Parameters.AddWithValue("@slname", lastname.Text);
        cmd.Parameters.AddWithValue("@gsch", chkk.Text);
        cmd.Parameters.AddWithValue("@ssname", txttt.Text);
        cmd.Parameters.AddWithValue("@sgr", dda.SelectedItem.Text);
        cmd.ExecuteNonQuery();
        
        con.Close();    
    }

my stored procesure is

USE [login]
GO

/****** Object: StoredProcedure [dbo].[student info] Script Date: 11/03/2015 15:06:26 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE procedure [dbo].[student info]
(
    @sname nvarchar(50),
    @slname nvarchar(50),
    @gsch bit,
    @ssname nvarchar(50),
    @sgr nvarchar(50)
)
as
begin

    insert into studentdetails values(@sname,@slname,@gsch,@ssname,@sgr)
end
GO

any body helpme
thank and regards
raviram