在 ASP.NET MVC 3 中应用数据注释时，您打算如何使用提示、描述、排序

发布于 2024-12-14 14:18:24 字数 621 浏览 2 评论 0原文

我有一个视图模型，其属性如下所示：

    [Display(Name = "Some Property", Description = "This is description", Prompt = "This is prompt")]
    [Required(ErrorMessage = RequiredFieldMessage)]
    public string SomeProperty { get; set; }

但这似乎没有在视图中呈现任何额外的内容。您需要做一些额外的工作吗？

    <div class="editor-label">
        @Html.LabelFor(model => model.SomeProperty )
    </div>
    <div class="editor-field">
        @Html.TextAreaFor(model => model.SomeProperty , 5, 80, null)
        @Html.ValidationMessageFor(model => model.SomeProperty )
    </div>

原文

I have a view model with a property on it that looks like this:

    [Display(Name = "Some Property", Description = "This is description", Prompt = "This is prompt")]
    [Required(ErrorMessage = RequiredFieldMessage)]
    public string SomeProperty { get; set; }

But this does not seem to render anything extra in the view. Do you need to do some additional work?

    <div class="editor-label">
        @Html.LabelFor(model => model.SomeProperty )
    </div>
    <div class="editor-field">
        @Html.TextAreaFor(model => model.SomeProperty , 5, 80, null)
        @Html.ValidationMessageFor(model => model.SomeProperty )
    </div>

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妄想挽回 2024-12-21 14:18:24

并非所有内置的 EditorTemplates 都利用所有 DataAnnotations，但是当您编写自己的 EditorTemplates 时，您可以利用它们。

排序并不真正适用，除非您正在执行 DisplayForModel 或 EditorForModel ，其中它为模型上的所有属性显示多个编辑器，然后它可以适当地对编辑器进行排序。

如果您想利用 Description 和 Prompt 元数据，您可以编写自己的 String EditorTemplate：

@model string
@Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue, new { 
    @title = ViewData.ModelMetadata.Description, 
    @placeholder = ViewData.ModelMetadata.Watermark})

Not all of the built in EditorTemplates take advantage of all of the DataAnnotations, but they are there for when you write your own EditorTemplates you can leverage them.

Ordering doesn't really apply unless you are doing DisplayForModel or EditorForModel where its showing multiple editors for all the properties on the model, it can then order the Editor's appropriately.

If you wanted to take advantage of the Description and Prompt metadata you could write your own String EditorTemplate:

@model string
@Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue, new { 
    @title = ViewData.ModelMetadata.Description, 
    @placeholder = ViewData.ModelMetadata.Watermark})

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