ASP .NET Core: View grid of multiple items to be edited - asp.net-core

Question

I'm trying to construct a view where the records from a table (machines) get uploaded and that each one can be edited in a view.
This is my Get method:
public async Task<IActionResult> Test()
{
return View(await _context.Machines.Include(t => t.MachineTypes).Include(p => p.Suppliers).AsNoTracking().ToListAsync());
}
Pretty simple for what I need. I'm getting a list of the table Machines and including the related tables: MachineTypes and Suppliers because this information should be able to be edited in the view.
Now, with the view I'm quite lost, sorry for this.
I started defining the model to be used:
#model IEnumerable<Application.Models.Machine>
Question[Answered] Is correct to use an IEnumerable?
Answer by uni: Yes
Then, as seen in some examples, I use a Html.BeginForm to indicate the controller and action:
#using (Html.BeginForm("Machines","TestPost"))
Sidenote: The Post method is not defined yet so I'm using any name for now
Then comes the iteration to read every element of the list:
#Html.ValidationSummary(true)
#for(int i = 0; i < Model.Count() ; i++)
Question[Answered]: In this part I'm not sure if 'Model.Machine.Count()' is correct.
Answer by uni: It's correct. No need to specify 'Machine'
Inside the iteration I don't know how to code to show the MachineName (MchName) to begin with. I'm doing this:
#for(int i = 0; i < Model.Count() ; i++)
{
<tr>
<td>
#Html.HiddenFor(modelItem => modelItem.Machine[i].Id)
#Html.DisplayNameFor(model => model.MchName)
</td>
</tr>
}
Question[Answered]: In this part:
#Html.HiddenFor(modelItem => modelItem.Machine[i].Id)
I don't know why I need to use the HiddenFor, I saw it on another example in the forum.
Answer by uni: This is one of many ways to send the values to the controller.
Question[Answered]: Also, this part
#Html.HiddenFor(modelItem => modelItem.Machine[i].Id)
Answer by uni: 'Machine' don't need to be included, same as before
Continuation of the View
For the iteration part, since 'Machine' don't need to be included...
[NEW]Question: How should I call the item wanted from the Machine table?
I've got this:
#for(int i = 0; i < Model.Count() ; i++)
{
<tr>
<td>
#Html.HiddenFor(modelItem => i.Id)
#Html.DisplayNameFor(modelItem => model.MchName)
</td>
</tr>
}
Both of this are wrong, but I was trying to figure out how to show the item inside the iteration. I wonder if, since I'm using an IEnumerable, it would be best if I use a #foreach instead of a for();
Thanks

Answer 1

Question: Is correct to use an IEnumerable?
Answer: Yes
Question: In this part I'm not sure if 'Model.Machine.Count()' is correct, and well, I'm getting the error: IEnumerable does not contain a definition for Machine. Is it enough if I put it this way?: #for(int i = 0; i < Model.Count() ; i++)
Answer: You already have a collection of Machines (IEnumerable<Application.Models.Machine>) which is stored in your model so Model.Count() would be the correct way to go as each Machine model doesn't have a child Machine object
Question: #Html.HiddenFor(modelItem => modelItem.Machine[i].Id) I don't know why I need to use the HiddenFor, I saw it on another example in the forum.
Answer: When you do an HTTP post you have many ways to send values to the controller action. Hidden fields are a way to do that. In this case you are sending the id of the machine as part of your form submission.
Question: #Html.HiddenFor(modelItem => modelItem.Machine[i].Id) is showing the same error: IEnumerable does not contain a definition for Machine. I tough I should mention the table.
Answer: The answer to this one is the same as the answer that I mentioned above regarding the Count() invocation in the for loop.
Hope this helps!