CODEWITHSUNDEEP
c#htmlasp.net-mvc
senjust
senjust

Reputation: 119

How to call View method and pass parameter to method?

I have a list of categories in the Sidebar.

@foreach (var item in Model) {
    <li><a href="~/Books/Category/@item.Title">@item.Title</a></li>
}

And I want to display the products of this category by clicking on the category. To do this, I implemented the method ViewCategory.

public ActionResult ViewCategory(string name) { ... }

But I do not know how to pass the parameter correctly. I'm trying to write something like that, but I understand that doing something wrong ... 

@Html.Action("ViewCategory", "Books", new {Title=item.Title})

Help me please

UPDATE

I have a View Index, and a method in which I bring up a list of my products

    public ActionResult Index()
    {
        HttpResponseMessage response = WebApiClient.GetAsync("Books").Result;
        var booksList = response.Content.ReadAsAsync<IEnumerable<BookDto>>().Result;
        return View(booksList);
    }

I need to display only products that belong to this category when choosing a category. I list the categories with PartialView

<ul>
@foreach (var item in Model) {
    @*<li><a href="~/Books/@item.Title"></a></li>*@
    @Html.Action("ViewCategory", "Books", new { name = item.Title })
}

To do this, I wrote a method that I try to use instead of 

    public ActionResult ViewCategory(string name)
    {
        HttpResponseMessage responseBooks = WebApiClient.GetAsync("Books").Result;
        List<BookDto> booksList = responseBooks.Content.ReadAsAsync<IEnumerable<BookDto>>().Result.ToList();
        for (int i = 0; i < booksList.Count; i++)
        {
            if (booksList[i].CategoryName != name)
            {
                booksList.Remove(booksList[i]);
            }
        }
        return View("Category");
    }

But now I have NullReferenceException...

Upvotes: 0

Views: 980

Answers (3)

Debabrata
Debabrata

Reputation: 122

You can try using

@Html.Action("Controller","Name", new { name = item.Title })

Upvotes: 1

Mandar Dhadve
Mandar Dhadve

Reputation: 381

You can use it as following.

@{ Html.RenderAction("ViewCategory", "Books", 
    new {param1 = "value1", param2 = "value2" }); }

Upvotes: 1

spmoolman
spmoolman

Reputation: 422

Just change 

@Html.Action("ViewCategory", "Books", new {Title=item.Title})

to

 @Html.Action("ViewCategory", "Books", new {name = item.Title})

Upvotes: 2

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