How to upload a file to server using asp.net?

protected void btnSub_Click(object sender, EventArgs e)
   {
       try
       {
           string filename = FileUpload1.FileName;
           FileUpload1.PostedFile.SaveAs(Server.MapPath("~\\Uploads1\\" + filename));
           string path = "~\\Uploads1\\" + filename;
           SqlConnection con = new SqlConnection(str);
           lblinfo.Text = " uploaded successfully ";
           cmd = new SqlCommand("Insert into news(headline,publication,edition,date,url) values(@head,@publication,@edition,@date,'" + path + "')", con);
           cmd.Parameters.AddWithValue("head", TextBox1.Text);
           cmd.Parameters.AddWithValue("publication", TextBox2.Text);
           cmd.Parameters.AddWithValue("edition", TextBox3.Text);
           cmd.Parameters.AddWithValue("date", TextBox4.Text);
           cmd.CommandType = CommandType.Text;
           con.Open();
           cmd.ExecuteNonQuery();
           con.Close();
       }
       catch (Exception ex)
       {
           Response.Write(ex.ToString());
       }

   }