小编fvs*_*vss的帖子

我想知道如何在Create Action上使用我的ViewModel？我尝试了几个我在论坛中找到的例子,但都没有解决我的问题.我已经绞尽脑汁待了几天,但无法弄清楚出了什么问题.

每当我单击"创建"按钮时,我都会收到以下错误:没有为此对象定义无参数构造函数.

@model MvcMusicStore.ViewModels.AlbumViewModel

@{
    ViewBag.Title = "Create";
}

<h2>Create</h2>

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)
    <fieldset>
        <legend>Album</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.AlbumItem.GenreId, "Genre")
        </div>
        <div class="editor-field">
            @Html.DropDownList("Genres", String.Empty)
            @Html.ValidationMessageFor(model => model.AlbumItem.GenreId)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.AlbumItem.ArtistId, "Artist")
        </div>
        <div class="editor-field">
            @Html.DropDownList("Artists", String.Empty)
            @Html.ValidationMessageFor(model => model.AlbumItem.ArtistId)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.AlbumItem.Title)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.AlbumItem.Title)
            @Html.ValidationMessageFor(model => model.AlbumItem.Title)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.AlbumItem.Price)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.AlbumItem.Price)
            @Html.ValidationMessageFor(model …