Http เรียก TextBox control ASP.Net

int i = 0;
            FileUpload fileUpload;
            TextBox txtProjrctName;
            Label lblBr;
            Label lbInfo;
            for (i = 1; i <= Convert.ToInt32(txtNumCtrl.Text); i++)
            {
                fileUpload = new FileUpload();
                txtProjrctName = new TextBox();
                {
                    fileUpload.ID = "fiUpload" + i;
                    txtProjrctName.ID = "txtProjrctName"+i;
                }
                
                lbInfo = new Label();
                lbInfo.Text = "ชื่อโครงการ";
                lblBr = new Label();
                lblBr.Text = "<br>";
                pnlCtrl.Controls.Add(fileUpload);
                pnlCtrl.Controls.Add(lbInfo);
                pnlCtrl.Controls.Add(txtProjrctName);
                pnlCtrl.Controls.Add(lblBr);
            }

int i = 0;
            HttpFileCollection myUpoad = Request.Files;
            HttpPostedFile myFiles;
            
            for (i = 0; i <= Convert.ToInt32(txtNumCtrl.Text) - 1; i++)
            {
                myFiles = (HttpPostedFile)myUpoad[i];
                if (myFiles.FileName.ToString() != "")
                {
                    String strFileName = System.IO.Path.GetFileName(myFiles.FileName);
                    myFiles.SaveAs(Server.MapPath("MyUploadAllFile/" + strFileName));
                }
            }