how to get id from html table and delete row from html table and also from database?

I have developed html table in code behind file shown below.

 public partial class New_Enquiry : System.Web.UI.Page
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString);
        string str;

        SqlCommand com;

        protected void Page_Load(object sender, EventArgs e)
        {

            string sql = "Select * From Enquirer_Details";
            SqlCommand command = new SqlCommand(sql, con);
            command.CommandType = CommandType.Text;
            con.Open();
            SqlDataReader reader = command.ExecuteReader();

            while (reader.Read())
            {

                TableDiv.InnerHtml += " <tr><td>" + reader["Enquirer_ID"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_Date"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Project_Name"].ToString() + "</td>";
                TableDiv.InnerHtml += " <td>" + reader["Enquirer_Name"].ToString() + "</td>";
                TableDiv.InnerHtml += " <td>" + reader["Enquirer_Phone_number"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_Mobile_number"].ToString() + "</td>";
                TableDiv.InnerHtml += " <td>" + reader["Enquirer_Address"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_email"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_dob"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_anneversary"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Property_type"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Flat_type"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_budget"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer__cash"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_loan"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["seriousness"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_mode"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["next_call"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["appointment"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td>" + reader["Enquirer_remark"].ToString() + "</td>";
                TableDiv.InnerHtml += "<td><input type=button id=btn value=Delete onclick='DeleteRow(this)'/></td>";
                //TableDiv.InnerHtml += "<script type=c#><asp:Button ID=Button1 runat=server Text=Button /></script>";
            }   TableDiv.InnerHtml += "</tr></table>";
                TableDiv.Visible = true;

        }

Now i want to delete record by clicking on delete button from the web form and also from database.So what i have to do?