MVC5 Asp.net Is there a way to get the correct value from EditorFor for a subclass

问题

I have a class

public class Citizen
{
    public long ID { get; set; }
    public string Name { get; set; }
    public long CityID { get; set; }
    public string City { get; set; }
    public List<CitizenResource> Resources { get; set; }
}

I want to edit individual items in the Resources but the EditorFor doesn't set up the input correctly.

@for (int i = 0; i < Model.Resources.Count; i++ )
{ 
    @Html.BeginForm("EditResource", "Citizen")
    {
        @Html.AntiForgeryToken()
        <div class="form-horizontal">
            <div class="form-group">
                <p class="form-control-static">
                    @Html.DisplayFor(model => model.Resources[i].Name)
                </p>
                <div class="col-md-10">
                    @Html.EditorFor(model => model.Resources[i].CurrentAmount, new { htmlAttributes = new { @class = "form-control" } })
                    @Html.ValidationMessageFor(model => model.Resources[i].CurrentAmount, "", new { @class = "text-danger" })
                    <input type="hidden" name="ResourceID" value="@Model.Resources[i].ResourceID"/>
                    <input type="submit" value="Update" class="btn btn-default" />
                </div>
            </div>
        </div>
     }
}

What I get is name="Resources[0].CurrentAmount" which then doesn't map correctly to the CitizenResource class.

Can anyone help point me in the right direction?

回答1:

The expression you sent causes that name:

What I get is name="Resources[0].CurrentAmount" which then doesn't map correctly to the CitizenResource class.

@Html.EditorFor(model => model.Resources[i].CurrentAmount, new { htmlAttributes = new { @class = "form-control" } })

Instead have a partial view to edit an CitizenResource

@model CitizenResource

@using(Html.BeginForm("EditResource", "Citizen")){
            {
//The complete elements
@Html.EditorFor(model => model.CurrentAmount, new { htmlAttributes = new { @class = "form-control" } })
//The rest of the elements
}}

回答2:

Your code is creating multiple forms which is not good. The best way to handle this kind of scenario is the use of EditorTemplates. Checkout this link on how to do it. EditorFor() for a List of Complex Type (MVC)

来源：https://stackoverflow.com/questions/33089916/mvc5-asp-net-is-there-a-way-to-get-the-correct-value-from-editorfor-for-a-subcla

标签

asp.net-mvc

asp.net-mvc-5