private PagedList<Employee> QueryListData(EmployeeSearch searchModel)
{
int recordCount = 0;
int pageSize = ConstantManager.PageSize;
EmployeeService service = new EmployeeService();
string Group = searchModel.IsAsc ? searchModel.SortBy : searchModel.SortBy + " Descending";
IList<Employee> allEntities = service.QueryByPage(this.GetSearchFilter(searchModel), Group, pageSize, searchModel.PageIndex + 1, out recordCount);
var formCondition = "var condition=" + JsonConvert.SerializeObject(searchModel);
return new PagedList<Employee>(allEntities, searchModel.PageIndex, pageSize, recordCount, "Id", "Id", formCondition);
}