รบกวนพี่ๆ ช่วยแก้โค้ดนี้ให้หน่อยครับ ตามโค้ดนี้เลยครับ

SqlConnection objConn = new SqlConnection();
            SqlCommand objCmd = new SqlCommand();
            SqlDataAdapter dtAdapter = default(SqlDataAdapter);
            DataTable dt = new DataTable();
            string strConnString = null;
            string strSQL = null;
            int intCount = 0;
            strConnString = "server=(local)\\SQLEXPRESS;database=myDatabase;Integrated Security=SSPI;";
            objConn.ConnectionString = strConnString;
            objConn.Open();
            strSQL = " SELECT  * FROM member WHERE Username = '" + this.txtUsername.Text + "' AND [Password] = '" + this.txtPassword.Text + "' ";
            dtAdapter = new SqlDataAdapter(strSQL, objConn);
            dtAdapter.Fill(dt);
            if (dt.Rows.Count > 0)
            {
                if (dt.Rows[0]["Status"] == "1")
                {
                   FormMain f = new FormMain();
                   f.Show();
                   this.Visible = false;
                }
                else if (dt.Rows[0]["Status"] == "2")
                {
                        Form3 f = new Form3();
                        f.Show();
                        this.Visible = false;
                }

            }
            else
            {
                this.lblStatus.Visible = true;
                this.lblStatus.Text = "กรุณาตรวจสอบ Username&Password!!";
            }
            objConn.Close();
            objConn = null;