c# - Razor View - @if 语句编译错误

Question

由 Visual Studio 构建的 Razor View 包含一个“actions”元素，其链接由竖线字符 (|) 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，但是执行会导致编译错误

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:}

你能指出问题出在哪里吗？该代码在语法上似乎是正确的。

Answer 1

一旦你闯入一个c# block ，你必须明确地再次闯出。您可以使用 <text>在这种情况下，标记将一行或多行文字文本添加到输出。

<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 所述，您可以使用语法 @:为单行文本跳出代码块。

<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>

另见 Combining Text, Markup, and Code in Code Blocks