在数据库中插入和更新我的值后，如何从另一个表单刷新我的datagrid视图？

public class DataController : Controller
{
    private readonly ApplicationDbContext _context;

    public DataController(ApplicationDbContext context)
    {
        _context = context;
    }

    [HttpPost]
    public ActionResult UpdateData(MyDataModel model)
    {
        if (ModelState.IsValid)
        {
            _context.Entry(model).State = EntityState.Modified;
            _context.SaveChanges();

            // 触发前端刷新
            TempData["RefreshGrid"] = true;
        }

        return RedirectToAction("Index");
    }
}

$(document).ready(function () {
    var refreshGrid = '@TempData["RefreshGrid"]';
    if (refreshGrid === 'true') {
        $('#myDatagrid').datagrid('reload');
    }
});