Pop Up Progress Bar

i wrote the code for progress bar. but i want o pop up my progress bar some thing like message box while progressing. how can i do pop up progress bar in a msg box....

ProgressBar ProBar = new ProgressBar();
       
        private void import(object sender, EventArgs e)
        {
            if (listView1.Items.Count == 0)
            {
                this.ProBar = new System.Windows.Forms.ProgressBar();
                this.ProBar.TabIndex = 0;
                this.ProBar.Maximum = dlg.FileNames.Length;
                this.ProBar.Minimum = 1;
                this.ProBar.Step = 1;
                
                foreach (string path in dlg.FileNames)
                {
                    FileInfo fileInfo = new FileInfo(path);
                    listView1.Items.Add(path);//fileInfo.Name
                    imageList.Images.Add(Bitmap.FromFile(path));                    
                    ProBar.PerformStep();