根据url传递的参数值显示图像url c＃

Question

我有两个Webform页面，一个用于读取二进制图像（binaryImage.aspx），第二个用于显示流程图的主页（OrgChart.aspx），我关心的是将参数传递给url以在其中显示图像根据ID的流程图，在Web表单（orgchart.aspx）中，我将URL分配给变量img。 这是我的源代码： Orgchart.aspx

     protected void Page_Load(object sender, EventArgs e)
        {

            ReadData();

        }
        [WebMethod()]
        public static List<NodeModel> ReadData()
        {
            SqlConnection conn = new SqlConnection("Data Source=LAPTOP-M7TNSO38\\SQLEXPRESS;Initial Catalog=DEMO;Integrated Security=True");

            // SqlConnection conn = new SqlConnection("Data Source=OUMAIMA-PC\\SQLEXPRESS;Initial Catalog=AGIRH;Integrated Security=True");
            string query = @"SELECT 
     u.UO, u.UO_RATTACHEMENT, a.MATRICULE,
     a.NOM, a.PRENOM, p.PHOTO, u.POSTE
FROM
     UNITE_ORG u, PHOTO p,AGENT a
where
    a.MATRICULE = u.RESPONSABLE AND p.MATRICULE= a.MATRICULE ";
            List<NodeModel> list = new List<NodeModel>();

            SqlCommand cmd = new SqlCommand(query, conn);
            conn.Open();
            SqlDataReader dataReader = cmd.ExecuteReader();
            while (dataReader.Read())
            {
                    list.Add(new NodeModel
                    {
                        id = dataReader.GetValue(0).ToString(),
                        pid = dataReader.GetValue(1).ToString(),
                        //responsable = dataReader.GetValue(1).ToString(),
                        matricule = dataReader.GetValue(2).ToString(),
                        nom = dataReader.GetValue(3).ToString(),
                        prenom = dataReader.GetValue(4).ToString(),  

                         img= "https://localhost:44338/Scripts/imgBinaire.aspx?matricule="+ dataReader.GetValue(2).ToString(),
                        //img = dataReader.GetValue(4).ToString(),

                        //img = "C:/Users/samsung/Desktop/téléchargement.jpg",
                        poste = dataReader.GetValue(6).ToString(),
                    });

            }

            dataReader.Close();
            conn.Close();

            return list;

        }

    }

binaryImage.aspx

    protected void Page_Load(object sender, EventArgs e)
        {
            string matricule = Request.QueryString["matricule"];


            SqlConnection conn = new SqlConnection("Data Source=LAPTOP-M7TNSO38\\SQLEXPRESS;Initial Catalog=DEMO;Integrated Security=True");

            // SqlConnection conn = new SqlConnection("Data Source=OUMAIMA-PC\\SQLEXPRESS;Initial Catalog=AGIRH;Integrated Security=True");
            string query = @"select p.PHOTO, a.MATRICULE, u.UO from PHOTO p, AGENT a, UNITE_ORG u
where a.MATRICULE = u.RESPONSABLE AND p.MATRICULE= a.MATRICULE ";
            //List <NodeModel> list = new List<NodeModel>();

            SqlCommand cmd = new SqlCommand(query, conn);
            conn.Open();
            SqlDataReader dataReader = cmd.ExecuteReader();

            if (dataReader.HasRows)
            {

                while (dataReader.Read())
                {
                    if (!Convert.IsDBNull(dataReader["PHOTO"]))
                    {
                    byte[] imag = (byte[])dataReader["PHOTO"];
                    Response.BinaryWrite(imag);
                    }


                }

            }

            dataReader.Close();
            conn.Close();



        }


    }