Counting Hits on a link and save it to database

Create table test with Column name as count int.You have to insert 0 in database manually.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="Textbox_gridview.WebForm2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">Hits</asp:LinkButton>
        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </div>
    </form>
</body>
</html>


using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
namespace Textbox_gridview
{
    public partial class WebForm2 : System.Web.UI.Page
    {
        string strConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        string str;
        SqlCommand com;

        protected void LinkButton1_Click(object sender, EventArgs e)
        {
            Label1.Text = (Convert.ToInt32(Label1.Text)+1).ToString();

            SqlConnection con = new SqlConnection(strConnString);
            con.Open();
            str = "update test set count='" + Label1.Text + "'";
            com = new SqlCommand(str, con);
            com.ExecuteNonQuery();
            con.Close();
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            SqlConnection con = new SqlConnection(strConnString);
            con.Open();
            str = "select sum(count)from test";
            com = new SqlCommand(str, con);
            Label1.Text = com.ExecuteScalar().ToString();
            con.Close();
        }
    }
}