model in partial view is null - asp.net core razor pages

Question

I am using asp.net core 2.1.

My Main page in under Pages folder and my partial view which is _test2 is in shared folder. This is my Main page:

public class MainModel : PageModel
    {
        public IRepositoryStudent irep;
        public MainModel (IRepositoryStudent _irep){
         irep = _irep;
        }
        [BindProperty]
        public Student student{ get; set; }

        public void OnGet()
        {
            student = irep.GetFirst();
        }
    }

This is my Main.cshtml:

@page
@model APWeb.Pages.MainModel

<h2>Main</h2>
<partial name="_test2" model="Model.student" />

This is my partial view : _test2:

@page
@*
    For more information on enabling MVC for empty projects, visit http://go.microsoft.com/fwlink/?LinkID=397860
*@

@model Student
@{ 
<h1 >@Model.Name</h1>}

my model in partial view is null and I have this error:

NullReferenceException: Object reference not set to an instance of an object.
APWeb.Pages.Shared.Pages_Shared__test2.get_Model()

Any help will be appreciate.

R_SH · Accepted Answer · 2020-06-18 22:39:35Z

16

I resolved my issue bye removing '@page' from partial view.

answered Jun 18, 2020 at 22:39

R_SH

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2 Comments

Raj Over a year ago

Thank you. You saved my day! This was exactly what was required. :)

Tanveer Badar Over a year ago

This is such a ridiculous simple solution, which I doubt was mentioned in the docs that I was reading. :facepalm:

Yiyi You · Accepted Answer · 2020-06-15 03:44:48Z

1

The partial view need to be a view page rather than razor page. here is a demo worked: Main page:

public class MainModel : PageModel
    {
        [BindProperty]
        public Student1 student { get; set; }
        public void OnGet()
        {
            student = new Student1 { Name = "Moddy" };
        }
    }

Main.cshtml:

@page
@model ModelValidation_MVC_.Pages.MainModel
@{
    ViewData["Title"] = "Main";
}

<h1>Main</h1>
<partial name="_test2" model="Model.student" />

_test2.cshtml:

@model ModelValidation_MVC_.Models.Student1

<h1>@Model.Name</h1>

Student1.class:

public class Student1
    {
        public string Name { get; set; }
    }

result:

answered Jun 15, 2020 at 3:44

Yiyi You

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1 Comment

R_SH Over a year ago

Your code is same as mine with one difference which was the key: removing @page from partial view.Thanks anyway,

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