您可以在@Helper中使用@Helper吗? [英] Can you use a @Helper inside an @Helper?

问题描述

我不确定这是否可能.

在一个视图以及其他视图中，我有一堆 @Helper :

I have a bunch of @Helper's inside a view AND in other views:

@helper ViewHelper1()
{
   ...
}
@helper ViewHelper2()
{
   ...
}
etc.

我在视图和其他视图中使用了重复的代码:

I have repetitive code that is used in the view AND in other views:

@if (!(Model.Entity == Model.Enum.One))
    {
        <td>
            @ViewHelper1()
        </td>
    }
    else
    { 
        <td>
            @ViewHelper1()
        </td>
        <td>
            @ViewHelper1()
        </td>
    }

实际的 @ ViewHelper1 具有更复杂的代码，但这并不重要(我认为).

The actual @ViewHelper1 has more complex code, but that's not important (I think).

好吧，因为每个视图都有许多 @Helper (30+个视图，每个视图有10-15个 @Helper )和< table> 的结构是相同的，我想知道如何在 App_Code 中创建一个 @Helper 来封装< td> 结构，然后将其传递给视图的 @Helper .

Well, since each view has a number of @Helper's (30+ views, 10-15 @Helper's each) and the <table> structure is the same, I was wondering how to go about creating a @Helper in App_Code that encapsulates the <td> structure and then would pass the view's @Helper.

说:

@helper Table(...) 
    {
        ...
    }

或者是否有可能，然后在如下视图中调用它:

Or whether or not that's even possible and then call it in the view like:

@Table(HelperView1)

如果是这样，我只需要语法方面的帮助.

If it is I just needed help with the syntax.

一如既往，非常感谢.

推荐答案

生成的剃刀助手只是返回类型为 HelperResult 的函数.您可以在主帮助器中具有将 HelperResult 作为参数返回的委托，并在适当的位置调用它们.

The generated razor helpers are just functions with the return type HelperResult. You can have delegates which returns HelperResult as parameters in your main helper and call them at the appropriate places.

帮助您入门的小样本:

@helper View1()
{
    <h1>View1</h1>
}

@helper View2()
{
    <h2>View2</h2>
}

@helper Table(Func<HelperResult> viewHelper)
{
    <text>Reuslt of viewHelper</text>
    @viewHelper()
}

@Table(View1)
@Table(View2)

生成的输出:

Reuslt of viewHelper
<h1>View1</h1>

Reuslt of viewHelper
<h2>View2</h2>

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