How to Load And Select Model With Tao.OpenGL

Question

I want to make a model viewer with tao.OpenGL and I want to make an option to select and load an object I tried to upload an object but it did not work how to do it?

What I tried:

using ShadowEngine;
using ShadowEngine.ContentLoading;

OpenFileDialog ofd = new OpenFileDialog() {Filter = "obj|*.obj"};
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                FileInfo f = new FileInfo(ofd.FileName);
                m = ContentManager.GetModelByName(f.Name);
                m.CreateDisplayList();

            }

The code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Tao.OpenGl;
using System.IO;

namespace OGSB
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();

            int height = simpleOpenGlControl1.Height;
            int width = simpleOpenGlControl1.Width;

            simpleOpenGlControl1.InitializeContexts();
            Gl.glViewport(0, 0, width, height);

            Gl.glMatrixMode(Gl.GL_PROJECTION);
            Gl.glLoadIdentity();
            Glu.gluPerspective(45.0f, (double)width / (double)height, 0.01f, 5000.0f);
        }

        private void simpleOpenGlControl1_Load(object sender, EventArgs e)
        {

        }

        private void simpleOpenGlControl1_Paint(object sender, PaintEventArgs e)
        {
            Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT);
            Gl.glMatrixMode(Gl.GL_MODELVIEW);

            Cube();

            Gl.glLoadIdentity();
        }

        private void Cube()
        {
            Gl.glTranslated(0, 0, -4);

            //face 1
            Gl.glBegin(Gl.GL_LINE_LOOP);    //start drawing GL_LINE_LOOP is the connection mode
            Gl.glColor3ub(255, 0, 255);
            Gl.glVertex3d(1, 1, -1);
            Gl.glVertex3d(1, -1, -1);
            Gl.glVertex3d(-1, -1, -1);
            Gl.glVertex3d(-1, 1, -1);
            Gl.glEnd();

            //face 2
            Gl.glBegin(Gl.GL_LINE_LOOP);
            Gl.glColor3ub(0, 255, 255);
            Gl.glVertex3d(-1, -1, -1);
            Gl.glVertex3d(1, -1, -1);
            Gl.glVertex3d(1, -1, 1);
            Gl.glVertex3d(-1, -1, 1);
            Gl.glEnd();

            //face 3
            Gl.glBegin(Gl.GL_LINE_LOOP);
            Gl.glColor3ub(255, 255, 0);
            Gl.glVertex3d(-1, 1, -1);
            Gl.glVertex3d(-1, -1, -1);
            Gl.glVertex3d(-1, -1, 1);
            Gl.glVertex3d(-1, 1, 1);
            Gl.glEnd();

            //face 4
            Gl.glBegin(Gl.GL_LINE_LOOP);
            Gl.glColor3ub(0, 0, 255);
            Gl.glVertex3d(1, 1, 1);
            Gl.glVertex3d(1, -1, 1);
            Gl.glVertex3d(1, -1, -1);
            Gl.glVertex3d(1, 1, -1);
            Gl.glEnd();

            //face 5
            Gl.glBegin(Gl.GL_LINE_LOOP);
            Gl.glColor3ub(0, 255, 0);
            Gl.glVertex3d(-1, 1, -1);
            Gl.glVertex3d(-1, 1, 1);
            Gl.glVertex3d(1, 1, 1);
            Gl.glVertex3d(1, 1, -1);
            Gl.glEnd();

            //face 6
            Gl.glBegin(Gl.GL_LINE_LOOP);
            Gl.glColor4d(255, 0, 0, 100);
            Gl.glVertex3d(-1, 1, 1);
            Gl.glVertex3d(-1, -1, 1);
            Gl.glVertex3d(1, -1, 1);
            Gl.glVertex3d(1, 1, 1);
            Gl.glEnd();
        }

        private void objToolStripMenuItem_Click(object sender, EventArgs e)
        {

        }

        private void simpleOpenGlControl1_MouseClick(object sender, MouseEventArgs e)
        {

        }
    }
}