dynamic text box data insert in to database..

 protected void ddsize_SelectedIndexChanged(object sender, EventArgs e)     {         if (counter > 1)             return;         foreach (ListItem item in ddsize.Items)         {             if (item.Selected)             {                                   Panel1.Visible = true;                 TextBox txtprice = new TextBox();                 txtprice.ID = "txt_price" + item.Value;                 txtprice.Width = 30;                 //txtprice.ID = "txtprice";                  Label lbl = new Label();                 //lbl.ID = "lblsize";                  lbl.Text = item.Text;                                 Panel1.Controls.Add(lbl);                 Panel1.Controls.Add(txtprice);              }         }         counter++;