Question

我试图通过对我的视图模型使用OOP来实现DRY原则：

public class ItemBase
{
    [Display(Name = "Description - Displayed in the list (so make this meaningful)")]
    [Required]
    public string Description { get; set; }

    [Display(Name = "Username")]
    [Required]
    public string UserName { get; set; }

    [Display(Name = "Optional Secondary Credential")]
    public string SecondCredential { get; set; }

    [Display(Name = "Location - Ideally a URL")]
    [Required]
    public string Location { get; set; }

    [Display(Name = "Additional Notes")]
    public string Notes { get; set; }
}


public class ItemDisplay : ItemBase
{
    [Required]
    public Int32 ItemId { get; set; }
    public ApplicationUser Creator { get; set; }
}

public class ItemEdit : ItemBase
{
    [Required]
    public Int32 ItemId { get; set; }

}

public class ItemAdd : Itemase
{
    [Required]
    public Int32 Parent_CategoryId { get; set; }

}

这确实很有用......但是，当我想使用ItemDisplay类在视图中显示数据时，它会显示Display属性数据。如果不将所有成员放入ItemDisplay类而没有Display attrbute，我将如何让视图忽略这些？

查看代码

<article class="first">
    <h2>Details</h2>
    <div class="form-horizontal toppaddding">
        <div class="form-group">
            @Html.LabelFor(model => model.ViewItem.Description, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.Description)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.ViewItem.UserName, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.UserName)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.ViewItem.SecondCredential, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.SecondCredential)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.ViewItem.Password, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.Password)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.ViewItem.Location, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.Location)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.ViewItem.Notes, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.Notes)
            </div>
        </div>
    </div>
</article>

Answer 1

Html.LabelFor助手首先查找Display dataAnnotation，如果没有，则默认输出类中属性的名称。

如果您不想在此特定视图中使用“显示数据”注释，请不要使用Html.LabelFor帮助程序，而是创建自己的标签标记，或者只输出您想要的任何内容。在包含模型数据的<div>之前说。

<div class="form-group">
            <label class = "control-label col-md-2">Alternate Description Label Text</label>
            <div class="col-md-10">
                @Html.Raw(Model.ViewItem.Description)
            </div>
        </div>

在这种情况下，您不是在创建输入表单，因此您可以考虑使用span而不是标签。

Answer 2

您可以使用接受labelText参数

的LabelFor重载

@Html.LabelFor(model => model.ViewItem.UserName, 
               Model.ViewItem.Description, 
               htmlAttributes: new { @class = "control-label col-md-2" })

在Razor View中忽略“显示”属性

2 个答案: