Razor视图- @if语句编译错误

Question

由Visual Studio搭建的Razor视图包含一个"actions"元素，其链接由管道字符(|)分隔

<td>
   @Html.ActionLink("Edit", "Edit", new { id = item.Id }) |
   @Html.ActionLink("Details", "Details", new { id = item.Id }) |
   @Html.ActionLink("Delete", "Delete", new { id = item.Id })
</td>

我想有条件地呈现这些链接:

<td>
    @if (item.IsSuccess)
    {
        @Html.ActionLink("Edit", "Edit", new { id = item.Id }) |
        @Html.ActionLink("Details", "Details", new { id = item.Id }) |
        @Html.ActionLink("Delete", "Delete", new { id = item.Id })
    }
</td>

上面的代码在Visual Studio中似乎是正确的，但是执行时会导致Compilation Error

Compilation Error
Description: An error occurred during the compilation of a resource required    
to service this request. Please review the following specific error details and
modify your source code appropriately.
Compiler Error Message: CS1513: Expected sign }.
Source Error:

Line 491:        }
Line 492:    }
Line 493:}

你能告诉我问题在哪里吗?代码语法似乎是正确的。

Answer 1

一旦进入c#块，必须再次显式地退出。在这种情况下，您可以使用<text>标记向输出添加一行或多行文字。

<td>
    @if (item.IsSuccess)
    {
        @Html.ActionLink("Edit", "Edit", new { id = item.Id })<text> |</text>
        @Html.ActionLink("Details", "Details", new { id = item.Id })<text> |</text>
        @Html.ActionLink("Delete", "Delete", new { id = item.Id })
    }
</td>

或者如John H所提到的，您可以使用语法@:将代码块分隔为单行文本。

<td>
    @if (item.IsSuccess)
    {
        @Html.ActionLink("Edit", "Edit", new { id = item.Id })@: |
        @Html.ActionLink("Details", "Details", new { id = item.Id })@: |
        @Html.ActionLink("Delete", "Delete", new { id = item.Id })
    }
</td>

参见在代码块中组合文本、标记和代码