public FrmUserGroupRoles(MenuStrip _mainform) { InitializeComponent(); listbutton = CWUser._UserGroupRoles.Where(x => x.Parent == this.Text && x.Tag == "button" && x.Permission == true).Select(y => y.elementName).ToList(); ButtonMapperHelper.GetButtons(this, listbutton); formbuttonlist = CWUserGroup.RetrieveAllFormButton(); PopulateToolstripMenuItem(_mainform); listusergroup = CWUserGroup.RetrieveAllUserGroup(); lboUserGroup.DataSource = listusergroup.Select(x => x.Id).ToList(); listusergrouproles = CWUserGroup.RetrieveAllUserGroupRoles(); GetAllForm(); listuser = CWUser.GetAllUser(); lboUser.DataSource = listuser.Where(y => y.UsergroupId == "ADM").Select(x => x.UserId).ToList(); }