为什么EditorFor渲染HTML?

时间:2011-10-09 18:18:23

标签: asp.net-mvc asp.net-mvc-3 asp.net-mvc-2

我有以下ViewModel:

public class ShowMatrixQuestionViewModel : ShowQuestionViewModel
{

public Dictionary<MatrixRows, List<MatrixColumns>> columnrow;
public List<MatrixColumns> columns;
public List<MatrixRows> rows;

public ShowMatrixQuestionViewModel()
{
    columns = new List<MatrixColumns>();
    rows = new List<MatrixRows>();
    columnrow = new Dictionary<MatrixRows, List<MatrixColumns>>();
}
}

public class MatrixColumns
{
    public int Column_ID { get; set; }
    public int Column_Number { get; set; }
    public String Column_Description { get; set; }
    public Boolean IsAnswer { get; set; }
}

public class MatrixRows
{
    public int Row_Id { get; set; }
    public String Row_Number { get; set; }
    public String Row_Description { get; set; }
}

当我填满我的模型并尝试使用DisplayTemplate显示MatrixRows时,它不会显示任何内容。我的DisplayTemplate的名称是MatrixRows.cshtml,它放在Views / Shared / DisplayTemplates

这是我用来显示MatrixRow的代码:

@model TestInheritance.Models.ShowMatrixQuestionViewModel

@using (Html.BeginForm())
{
    <div id="edit">
    <h2>Columns</h2>
    @foreach (var column in Model.columns)
    {
        <p>@column.GetType().Name</p>
        Html.RenderPartial("EditMatrixColumn", column);
    }
    <h2>Rows</h2>
    @foreach (var rows in Model.rows)
    {
      <p>@rows.GetType()</p>
      Html.DisplayFor(x => rows);
      //Html.RenderPartial("EditMatrixRow", rows);
    }
    </div>

    <input type="submit" value="Finished" />
}

当我使用RenderPartial时它工作正常......我做错了什么?

DisplayTemplate的代码:

@model TestInheritance.Models.MatrixRows
@using TestInheritance.Helpers

<div class="editrow">
@using (Html.BeginCollectionItem("rows")) 
{
    <span>
    Nummer:
    @Html.EditorFor(cn => Model.Row_Number)
    </span>
    <br />
    <span>
    Beskrivelse:
    @Html.EditorFor(bs => Model.Row_Description)
    </span>
}
</div>

2 个答案:

答案 0 :(得分:5)

Html.DisplayFor返回HTML 您没有对该HTML做任何事情。

您可能希望通过编写@Html.DisplayFor(...)

将其写入页面

答案 1 :(得分:2)

而不是写循环:

@foreach (var rows in Model.rows)
{
    <p>@rows.GetType()</p>
    Html.DisplayFor(x => rows);
}

简单地:

@Html.DisplayFor(x => x.rows)

然后在相应的显示模板~/Views/Shared/DisplayTemplates/MatrixRows.cshtml内,它将自动为集合的每个元素呈现:

@using TestInheritance.Helpers
@model TestInheritance.Models.MatrixRows

<p>@GetType()</p>
<div class="editrow">
@using (Html.BeginCollectionItem("rows")) 
{
    <span>
        Nummer:
        @Html.EditorFor(x => x.Row_Number)
    </span>
    <br />
    <span>
        Beskrivelse:
        @Html.EditorFor(x => x.Row_Description)
    </span>
}
</div>

这就是说,您的显示模板看起来更像是一个编辑器模板,因为它包含输入字段。所以:

@Html.EditorFor(x => x.rows)

然后使用~/Views/Shared/EditorTemplates/MatrixRows.cshtml