如何返回更新的局部视图及其父视图（回发）

Question

I have a Parent View with 2 partial views inside it, the partial views contains few textbox and a button, when I submit the button, the partial views will show some message. Code below :

View :

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage(Of Test.ParentModels)" %>

<% Html.RenderPartial("LogIn", Model.LoginModel)%>
<% Html.RenderPartial("Register", Model.RegisterModel)%>

Model :

public class LoginModel
{
    //code here
}

public class RegisterModel
{
    //code here
}

public class ParentModel
{
    public LoginModel LoginModel {get; set;}
    public RegisterModel RegisterModel {get; set;}
}

Controller :

//LogIn page will call this method on submit
public LogIn(LoginModel model) 
{
    //do something that changed Login html view
    return View("LogIn", model);
}

The problem is I don't know how to return the updated partial view along with its parent (postback) and I don't want to use ajax to achieve this. I tried both return View("LogIn", model) and return PartialView("LogIn", model), both only shows the partial view without its parent. Any help will be appreciated and sorry for bad english.

Answer 1

Since you want to do a full page postback, though you postback from the partialview part, in the corresponding Action Method you need to return the Main View(which has two partials in your case) and also capture whatever state required from postback and set it to the model object ( if you need to persist the state) as expected by the Main View.

Eg

return View("ParentViewName",objParentModel);