I am doing a search system in my movie view and gave an error regarding the Web request

Question

(I decided to make another post, as advice of another user)

In my Movies view there is a list of all the movies you have in the database and I added um botão, uma caixa de texto e 2 radio buttons(para escolher se quero pesquisar por Nome do filme ou por Categoria do filme) . In the If only the Category is specified because the Name is Default first. My goal is to make a search system by Name or Category. After changing the code of If previous error was solved but a new one related to Model appeared.

Controller:

 public ActionResult Index(string searchBy, string search)
    { 
        MovieViewModel[] movies = db.MoviesData.Select(movie => new MovieViewModel
        {
            MovieID = movie.MovieID,
            MovieName = movie.MovieName,
            MovieDescription = movie.MovieDescription,
            MovieCategory = movie.MovieCategory,
            MovieYear = movie.MovieYear
        }).ToArray();

        if (searchBy == "Categoria")
        {
            return View(movies.Where(x => x.MovieCategory==search || search == null).ToList());
        }
        else
        {
            return View(movies.Where(x => x.MovieName != null && (search == null || x.MovieName.StartsWith(search))).ToList());
        }
    }

Main View of the Movies:

    @model WebApplication3.Models.MovieViewModel[]


@{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}

<h2>Movies</h2>

<p>
@Html.ActionLink("Create New", "Create")
</p>

<p>
@using (Html.BeginForm("Index", "Movies", FormMethod.Get))
{
    <b>Search By: </b>@Html.RadioButton("searchBy", "Nome", true) <text> Nome </text>
    @Html.RadioButton("searchBy", "Categoria") <text> Categoria </text> <br />
    @Html.TextBox("search") <input type="submit" value="Search" class="btn btn-default" />
}

<table class="table table-bordered table-responsive table-hover">
    <tr>
        <th><b>Nome </b></th>
        <th><b>Categoria </b></th>
        <th><b>Ano de Lançamento </b></th>
        <th><b>Descrição do Filme </b></th>
        <th></th>


    </tr>
    @foreach (var item in Model)
    {
    <tr>
        <td>@item.MovieName</td>
        <td>@item.MovieCategory</td>
        <td>@item.MovieYear</td>
        <td>@item.MovieDescription</td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id = item.MovieID }) |
            @Html.ActionLink("Details", "Details", new { id = item.MovieID }) |
            @Html.ActionLink("Delete", "Delete", new { id = item.MovieID })
        </td>
    </tr>
    }
</table>

The new error is not specified in any particular line. It was a web processing error. This is the error:

System.InvalidOperationException: The model item passed into the dictionary is of type 'System.Collections.Generic.List1[WebApplication3.Models.MovieViewModel]', but this dictionary requires a model item of type 'WebApplication3.Models.MovieViewModel[]'.

Answer 1

At the beginning of his view When you declare her type, there should be a list of the object. Change of

@model WebApplication3.Models.MovieViewModel[]

for

@model IEnumerable<WebApplication3.Models.MovieViewModel>

This happens because you are returning a list to the view

if (searchBy == "Categoria")
{
    return View(movies.Where(x => x.MovieCategory==search || search == null).ToList());//Retornando uma lista
}
else
{
    return View(movies.Where(x => x.MovieName != null && (search == null || x.MovieName.StartsWith(search))).ToList());//Retornando uma lista
}

If your list can return null you might also want to do a validation, something like:

@if(Model == null || Model.Count() == 0)
{
    <span> Não foram encontrados dados</span>
}
else
{
    <table class="table table-bordered table-responsive table-hover">
        <tr>
            <th><b>Nome </b></th>
            <th><b>Categoria </b></th>
            <th><b>Ano de Lançamento </b></th>
            <th><b>Descrição do Filme </b></th>
            <th></th>
        </tr>
        @foreach (var item in Model)
        {
            <tr>
                <td>@item.MovieName</td>
                <td>@item.MovieCategory</td>
                <td>@item.MovieYear</td>
                <td>@item.MovieDescription</td>
                <td>
                    @Html.ActionLink("Edit", "Edit", new { id = item.MovieID }) |
                    @Html.ActionLink("Details", "Details", new { id = item.MovieID }) |
                    @Html.ActionLink("Delete", "Delete", new { id = item.MovieID })
                </td>
            </tr>
        }
    </table>
}