How to bind listing view with view model in asp.net core

Dear All I would like to ask a question I have a view in which i am creating the records and in same view I have one partial view in which I am showing my listing my create view is working fine and it saves the records as well , but my partial view as it need to show the listing when I iterate through the model listing it says model does not exists , basically I dont have model I have one VIEWMODEL in which I have all models Like
public class NewinformationVm

{

public int id,

public person person{get;set;} //here person itself is a class with properties

public student students{get;set;}//here student itself is a class with having properties

public NewinformationVm()

{

students=new students()//initializing me model which are in view model
person=new person()//initializing my model which are in view model

}

}
my partial view is like this

@model myprojectname.ViewModels.NewinformationVm
when i tried
@foreach(var item in model)
it says model does not exists can someone help me

Hi Mark

It seems like the issue arises from the way you're trying to iterate over the model in your partial view. Since NewinformationVm contains individual properties (person and student) and not a collection, iterating over NewinformationVm directly isn't valid. If you want to display a list of items, your ViewModel needs to contain a collection of items you can iterate over.

Here’s a way to structure your ViewModel to support listing and iteration in the partial view:

ViewModel with a Collection:

public class NewInformationVm
{
    public int Id { get; set; }
    public Person Person { get; set; } // Person model
    public Student Student { get; set; } // Student model
    public List Items { get; set; } // Collection of items

    public NewInformationVm()
    {
        Person = new Person();
        Student = new Student();
        Items = new List();
    }
}

public class Item
{
    public int ItemId { get; set; }
    public string ItemName { get; set; }
    // other properties...
}

Controller: Make sure your controller is populating the Items collection appropriately.

public ActionResult Create()
{
    var viewModel = new NewInformationVm
    {
        Items = GetItems() // Fetch or initialize your list of items here
    };
    return View(viewModel);
}

private List GetItems()
{
    // Logic to fetch or create items
    return new List
    {
        new Item { ItemId = 1, ItemName = "Item 1" },
        new Item { ItemId = 2, ItemName = "Item 2" }
        // Add more items...
    };
}

Partial View: Update your partial view to iterate over the Items collection.

@model myprojectname.ViewModels.NewInformationVm

Item List
@if (Model.Items != null && Model.Items.Any())
{
    
    @foreach (var item in Model.Items)
    {
        @item.ItemName
    }
    
}
else
{
    No items available.
}

Main View: Ensure your main view is including the partial view correctly.

@model myprojectname.ViewModels.NewInformationVm


@Html.Partial("_PartialViewName", Model)

By adding a collection property (Items) to your ViewModel and ensuring the partial view iterates over this collection, you should be able to list the records without encountering the "model does not exist" error.