ASP.NET MVC空视图结果

如何处理返回空viewresult的MVC控制器?

例如,我正在创建一个简单的编辑视图:

    public ActionResult Edit(int id)
    {
        var person = (from p in context.SWLiftShare_Persons
                      where p.id == id
                      select p).SingleOrDefault();

        if (person != null)
        {
            return View(person);
        }
        else return View();
    }

我想在现实中,没有必要检查控制器中的空结果,因为视图从模型中选择属性:

<h2>Edit - <%= Html.Encode(Model.Name) %></h2>

<%= Html.ValidationSummary("Edit was unsuccessful. Please correct the errors and try again.") %>

<% using (Html.BeginForm()) {%>

    <fieldset>
        <legend>Fields</legend>
        <p>
            <label for="id">id:
            <%= Html.Encode(Model.id) %></label>
        </p>
        <p>
            <label for="CollarNumber">CollarNumber:</label>
            <%= Html.TextBox("CollarNumber", Model.CollarNumber)%>
            <%= Html.ValidationMessage("CollarNumber", "*") %>
        </p>
        <p>
            <label for="Name">Name:</label>
            <%= Html.TextBox("Name", Model.Name)%>
            <%= Html.ValidationMessage("Name", "*") %>
        </p>
        <p>
            <label for="EmailAddress">EmailAddress:</label>
            <%= Html.TextBox("EmailAddress", Model.EmailAddress, new { style = "width:300px" })%>
            <%= Html.ValidationMessage("EmailAddress", "*") %>
        </p>
        <p>
            <input type="submit" value="Save" />
        </p>
    </fieldset>
<% } %>

我可以把所有东西都包起来 <% if(Model != null) { //render edit markup... 等等,但这似乎是不必要的。有没有更好的方法来解决这个问题?