how to retrive .mht file from database

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ASP.NET

MySQL

Sir,i save .mht file in mysql data base.Now i want to retrive .mht file from database and show in web page.

my code.......
protected void Button1_Click(object sender, EventArgs e)
{
MySqlConnection con = new MySqlConnection("Server=Localhost;DataBase=password1;user=root;password=nectar");
string strcon = "select data from sla11 where idSLA11=2";
MySqlCommand com = new MySqlCommand(strcon, con);
con.Open();

MySqlDataReader dr = com.ExecuteReader();
if (dr.Read())
{
Response.ContentType = "text/mht";
Response.AddHeader("Content-Disposition", "attachment;name=\"" + dr["data"] + "\"");
Response.BinaryWrite((byte[])dr["data"]);

Response.End();
}
else
{
ClientScript.RegisterStartupScript(Page.GetType(), "validation", "<script language='javascript'>alert('Report Not Exist')</script>");
}
con.Close();