将ViewBag从Controller传递到部分视图

Question

My controller action is

public ActionResult Generate(int? id, int? kol)
{
    string name = db.Sifres.Where(c => c.id == id).Select(c => c.name).FirstOrDefault();

    ViewBag.Sif = name;

    return PartialView("_GenerateNumbers");
}

Through debugger and breakpoints I can see that variable name and ViewBag.Sif have values. When the controller returns partial view the values of variable name and ViewBag.Sif are null ! Why? Why those loose their values?

Answer 1

通常对于部分视图，我向它发送一个包含我想要的所有数据的模型，但是如果您确实只需要发送此字符串，则只需显式发送即可：

return PartialView("_GenerateNumbers", name);