我应该在哪里放置声明HTML佣工在ASP.NET MVC 3

本文介绍了我应该在哪里放置声明HTML佣工在ASP.NET MVC 3的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我试图做一个声明HTML帮助中 ScottGu的剃刀规定帖子，但我没有多少运气。我试图把一个Helpers.cshtml文件与查看/佣工DateTimeHelper但它不会把它捡起来，所以我在APP_ code试图按the MVC 3 Beta版后。现在，它把它捡起，但是当我尝试使用它在一个文件中像这样：

@DateTimeHelper（DateTime.Now）

编译器抱怨DateTimeHelper不存在。

一些奇怪的事情：如果我重命名文件DateTime.cshtml，我得到一个不同的错误，一些关于特定code在我的帮手。

有关完整起见，这里是辅助的code：

@helper DateTimeHelper（日期时间T，布尔的longdate =真，布尔=的showTime真，布尔长期=真）{    ＆LT;时间日期时间=@ t.ToUniversalTime（）'＆GT;        @if（的longdate）{            如果（的showTime）{                如果（长期）{                    @ t.ToLongDateString（）@ t.ToLongTimeString（）;                }其他{                    @ t.ToLongDateString（）@ t.ToShortTimeString（）;                }            }其他{                @ t.ToLongDateString（）            }        }其他{            如果（的showTime）{                如果（长期）{                    @ t.ToShortDateString（）@ t.ToLongTimeString（）;                }其他{                    @ t.ToShortDateString（）@ t.ToShortTimeString（）;                }            }其他{                @ t.ToShortDateString（）            }        }    ＆LT; /时间＆gt;}

助手在这样的特定视图中使用：

@model动态＆LT; D​​IV＆GT;    ＆所述p为H.;当前时间是@DateTimeHelper（DateTime.Now）LT; / P＆GT;＆LT; / DIV＆GT;

解决方案

要使用剃刀的@helper功能，您需要将CSHTML文件放置在您的应用程序的APP_ code文件夹中。有一个在ASP.NET MVC 3 ScottGu的博客文章没有查看/助手的文件夹被写入之前的功能已全面实施，而一些票据也有不完全准确了。

要调用@helper你写，你必须包括文件名，以及它里面的助手的名字。例如，如果你有这样的帮手：

〜/ APP_ code / MyHelper.cshtml

和此内容：

@helper ShowStuff（字符串的东西）{    ＆所述p为H.; @东西＆下; / P＆GT;}

然后调用它像这样：

@ MyHelper.ShowStuff（一些东西！）

I'm trying to make a declarative HTML Helper as specified in ScottGu's Razor post, but I'm not having much luck. I tried putting a Helpers.cshtml file with a DateTimeHelper in Views/Helpers but it wouldn't pick it up, so I tried in App_Code as per the MVC 3 Beta post. Now it picks it up, but when I try to use it in a file like so:

@DateTimeHelper(DateTime.Now)

The compiler complains that DateTimeHelper doesn't exist.

Some weird things: If I rename the file to DateTime.cshtml, I get a different error, something about the particular code in my helper.

For completeness' sake, here's the helper's code:

@helper DateTimeHelper(DateTime t, bool longDate = true, bool showTime = true, bool longTime = true) { <time datetime='@t.ToUniversalTime()'> @if(longDate) { if(showTime) { if(longTime) { @t.ToLongDateString() @t.ToLongTimeString(); } else { @t.ToLongDateString() @t.ToShortTimeString(); } } else { @t.ToLongDateString() } } else { if(showTime) { if(longTime) { @t.ToShortDateString() @t.ToLongTimeString(); } else { @t.ToShortDateString() @t.ToShortTimeString(); } } else { @t.ToShortDateString() } } </time> }

The helper is used in a certain view like this:

@model dynamic <div> <p> The current time is @DateTimeHelper(DateTime.Now)</p> </div>

解决方案

To use the "@helper" feature in Razor you need to place the CSHTML file in the App_Code folder of your app. There is no "Views/Helpers" folder in ASP.NET MVC 3. ScottGu's blog post was written before the feature was fully implemented, and some of the notes there are not entirely accurate anymore.

To call the "@helper" that you wrote you have to include both the filename as well as the name of the helper inside it. For example, if you have this helper:

~/App_Code/MyHelper.cshtml

And this content:

@helper ShowStuff(string stuff) { <p>@stuff</p> }

Then you call it like so:

@MyHelper.ShowStuff("some stuff!")