Insert and update data to database using sqlcommand with parameters in asp.net

public SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["SLMFConnection"].ToString());
    public string conStr = ConfigurationManager.ConnectionStrings["SLMFConnection"].ToString();
    SqlCommand cmd;


 try
        {
     
        if (con.State == ConnectionState.Closed)
        {
            con.Open();
        }

        cmd = new SqlCommand("select * from [inner] where country='"+ddcountry.SelectedValue+"' and page='"+ddname.SelectedValue+"'", con);
        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.Read())
        {
            dr.Close();
            cmd = new SqlCommand("update [inner] set lblp1=@lblp1 where country=@country and page=@page", con);
            cmd.Parameters.Add("@page", SqlDbType.VarChar, 50).Value = ddname.SelectedValue;
            cmd.Parameters.Add("@lblp1", SqlDbType.NText).Value = CKEditor1.Text;
            cmd.Parameters.Add("@country", SqlDbType.VarChar, 5000).Value = ddcountry.SelectedValue;
            //cmd = new SqlCommand("update [inner] set lblp1=N'"+CKEditor1.Text+"' where country='"+ddcountry.SelectedValue+"' and page='"+ddname.SelectedValue+"'", con);
            cmd.ExecuteNonQuery();
       
        }
        else
        {
            dr.Close();
            cmd = new SqlCommand("insert into [inner] values(@country,@page,@lblp1)", con);
            cmd.Parameters.Add("@page", SqlDbType.VarChar, 50).Value = ddname.SelectedValue;
            cmd.Parameters.Add("@lblp1", SqlDbType.NText).Value = CKEditor1.Text;
            cmd.Parameters.Add("@country", SqlDbType.VarChar, 5000).Value = ddcountry.SelectedValue;
            //cmd = new SqlCommand("insert into [inner] values('"+ddcountry.SelectedValue+"','"+ddname.SelectedValue+"',N'"+CKEditor1.Text+"')", con);
            cmd.ExecuteNonQuery();
        }
        con.Close();

        clsAlert.Show("Data Saved Successfully");
        CKEditor1.ReadOnly = true;

        }
        catch (Exception ex)
        {
        }