[英]How to format string property in MVC model class to be used in DisplayFor
Okay, I have been looking for a resolution for this simple task all day. 好的,我整天都在寻找解决方案。
I have an mvc model class which has a BIC property and a NationalNumber property. 我有一个MVC模型类,它具有BIC属性和NationalNumber属性。 Bother are string values. 麻烦的是字符串值。 I want to use a DisplayFor helper to render the property on the view BUT, with a formatting applied. 我想使用DisplayFor助手在视图BUT上渲染属性,并应用格式。
for completeness: the formatting for the NationalNumber is '00.00.00-000.00' , the formatting for BIC is AAAA BB CC 为了完整性:NationalNumber的格式为'00 .00.00-000.00',BIC的格式为AAAA BB CC
I tried annotating my properties with a DisplayFormat Attribute, but that only seems to work with DateTimes, numeric values, etc,.. 我尝试使用DisplayFormat属性注释属性,但似乎只能与DateTimes,数字值等一起使用。
[DisplayFormat(DataFormatString = "{0:##.##.##-###.##}")]
Then I looked at creating a custom DisplayFormat attribute , but that also works with patterns that apply to DateTimes, numeric values, etc.. You still need to suppy a DataFormatString value in the constructor of your custom attribute. 然后,我研究了如何创建一个自定义DisplayFormat属性 ,但它也适用于适用于DateTimes,数字值等的模式。您仍然需要在自定义属性的构造函数中提供一个DataFormatString值。 But the filter does not seem to work with strings! 但是过滤器似乎不适用于字符串!
For the moment I ended up doing the markup clientSide(with a mask plugin) but that's not really what I want! 目前,我最终做了标记clientSide(带有遮罩插件),但这并不是我真正想要的!
To summarize: I want to use @Html.DisplayFor(x=>x.BicNumber)
and have it rendered with a custom formatting, preferrably annotaded on my viewmodel, with BicNumber being a string. 总结一下:我想使用@Html.DisplayFor(x=>x.BicNumber)
并以自定义格式对其进行呈现,最好在我的viewmodel上进行注释,其中BicNumber是一个字符串。
Thanks in advance 提前致谢
If your NationalNumber
and BIC
were separate data types, you could create display templates , store them under ~/Views/Shared/DisplayTemplates/NationalNumber.cshtml
and ~/Views/Shared/DisplayTemplates/BIC.cshtml
, and it would then automatically work as you want. 如果您的NationalNumber
和BIC
是单独的数据类型,则可以创建显示模板 ,将它们存储在~/Views/Shared/DisplayTemplates/NationalNumber.cshtml
和~/Views/Shared/DisplayTemplates/BIC.cshtml
,然后它将自动以你要。
If you want to keep these properties as strings, the automatic approach won't work for you because a display template created for string.cshtml
would affect all strings in the project. 如果要将这些属性保留为字符串,则自动方法将对您不起作用,因为为string.cshtml
创建的显示模板将影响项目中的所有字符串。
So create a display template named ~/Views/Shared/DisplayTemplates/NationalNumber.cshtml
, where you would manually output parts of the number: 因此,创建一个名为~/Views/Shared/DisplayTemplates/NationalNumber.cshtml
的显示模板,您将在其中手动输出部分数字:
@model string
@String.Format("{0}.{1}.{2}-{3}.{4}", Model.Substring(0, 2), Model.Substring(2, 2), Model.Substring(4, 2), Model.Substring(6, 3), Model.Substring(9, 2))
(note the capitalized String
, it is important ) and specify it explicitly: (注意大写的String
, 这很重要 ),并明确指定它:
@Html.DisplayFor(x=>x.NationalNumber, "NationalNumber")
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