/// <summary>
        /// Lists all modules in the selected course
        /// </summary>
        private DataTable GetModuleRule()
        {
            // Unit used to gather the module rules
            BusinessServices.Unit objUnit = new BusinessServices.Unit();
            // Holds the selected course id
            int       intCourseID = int.Parse(this.cboCourse.SelectedValue);
            DataTable dtbModules  = objUnit.GetModuleRule(this.m_intUnitID, intCourseID);

            this.grdModules.DataSource   = dtbModules;
            this.grdModules.DataKeyField = "ModuleID";
            this.grdModules.DataBind();

            return(dtbModules);
        }