vb.net 带有 Razor 和 .NET 的一行 If 语句
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One line If statement with Razor and .NET
提问by ElliotSchmelliot
Razor doesn't seem to like my one line Ifstatements... Normally in VB.NET, I can write a one line Ifstatement like so:
Razor 似乎不喜欢我的单行If语句……通常在 VB.NET 中，我可以If像这样编写单行语句：
If True Then Dim x As Integer
However, when I do the same with Razor in a .vbhtmlfile like this...
但是，当我在这样的.vbhtml文件中对 Razor 执行相同操作时...
@If True Then Dim x As Integer
I get the error
我收到错误
The "If" block was not terminated. All "If" statements must be terminated with a matching "End If".
“If”块没有终止。所有“If”语句都必须以匹配的“End If”结束。
What gives? Why won't Razor take this? I realize that a simple solution is to just use a code block like
是什么赋予了？为什么 Razor 不接受这个？我意识到一个简单的解决方案是只使用像这样的代码块
@code
If True Then Dim x As Integer
End Code
But thats not what I'm looking for. I'm curious why Razor can't recognize a VB.Net one line Ifstatement using just @If.... Any ideas?
但这不是我要找的。我很好奇为什么 Razor 不能If仅使用@If.... 有任何想法吗？
采纳答案by Joan Caron
Same problem with C#, As explained here:
用C＃同样的问题，如解释在这里：
Razor uses code syntax to infer indent: Razor Parser infers code ending by reading the opening and the closing characters or HTML elements. In consequence, the use of openings “{“ and closings “}” is mandatory, even for single line instructions
Razor 使用代码语法来推断缩进：Razor Parser 通过读取开始和结束字符或 HTML 元素来推断代码结束。因此，必须使用开头“{”和结尾“}”，即使是单行指令
You do the wright thing
你做正确的事
@code
If True Then Dim x As Integer
End Code
You can do it like that but it's not you like (inline)
你可以那样做，但不是你喜欢的（内联）
@If (True) Then
Dim x As Integer
End If
回答by jweaver
In VB.Net you do a inline If Statement like this:
在 VB.Net 中，您可以像这样执行内联 If 语句：
@(If(boolCondition, "truePart", "falsePart"))
回答by PeaceFrog
I'm not sure about VB, but this works in C#.
我不确定 VB，但这适用于 C#。
@{if (true) { int x; }}
