EditorFor() 用于复杂类型列表 (MVC) [英] EditorFor() for a List of Complex Type (MVC)

问题描述

我正在尝试为复杂类型的列表创建一个 EditorFor().具体来说，下面的选项"应该显示在一个多文本输入中，其中每个选项(字符串)都在一个新行中.但是，我只能在文本框中显示一个选项，而不是所有选项....

I'm trying to create an EditorFor() for a List of a Complex Type. Specifically the "Options" below should get displayed in a one multitext input where each option(string) is in a new line. However, I can only display one option in a textbox and not all options....

我的视图模型和类:

public class ItemViewModel
{
    public int itemId { get; set; }

    [UIHint("Option")]
    public List<Option> Options { get; set; }
}
public class Option
{
    public string Text { get; set; }
}

我的编辑器模板:

EditorTemplatesItem.cshtml

EditorTemplatesItem.cshtml

@model ItemViewModel
@Html.EditorFor(model => model.Options)

EditorTemplatesOption.cshtml

EditorTemplatesOption.cshtml

//Not sure how to dispay the options here
<textarea rows="4" cols="50">
Display Options
</textarea>

如果我将 EditorTemplates 更新为:

If I update my EditorTemplates to:

EditorTemplatesItem.cshtml

EditorTemplatesItem.cshtml

@model ItemViewModel
@Html.EditorFor(model => model.Options[0])

EditorTemplatesOption.cshtml

EditorTemplatesOption.cshtml

@Html.TextBoxFor(x => x.OptionText)

它将在文本框中显示第一个选项.但是，我再次尝试实现的是在多文本输入中显示所有选项.

It will display the first option in a textbox. But, again what I'm trying to achieve is to display all options in a multitext input.

有什么想法吗?

推荐答案

您几乎拥有它.

在此 EditorTemplatesOption.cshtml 中添加以下内容:

In this EditorTemplatesOption.cshtml add the following:

@model IEnumerable<Option>
@foreach(var option in Model)
{
   @Html.TextBoxFor(m => option.Text)
}

然后像这样在你的视图中调用它:

Then call it in your view like this:

@Html.EditorFor(model => model.Options)

如果您没有在初始获取时填充您的选项，则需要将其添加到您的 ItemViewModel 类中:

If you are not populating your options on the initial get, you will need to add this in your ItemViewModel class:

public class ItemViewModel
{
    public ItemViewModel()
    {
        Options = new List<Option>();
    }
    public int itemId { get; set; }

    [UIHint("Option")]
    public List<Option> Options { get; set; }
}

这个构造函数初始化集合:

This constructor initializes the collection:

public ItemViewModel()
{
    Options = new List<Options>();
}

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