Vbnet中是否有空条件运算符? [英] is there a null conditional operator in Vbnet?

问题描述

在C#中，有一个空条件运算符?.(有时称为Elvis运算符)，如下所示:

cIn C# there is a null conditional operator ?. (sometimes called the Elvis operator) like so:

var name = project?.customer?.name;

这不会失败，但是如果 project 或 customer 为null，则返回 null .

which doesn't fail but instead return null if project or customer is null.

VB.NET中是否有等效项?

Is there an equivalent in VB.NET?

请注意，我不是要查找 If(b，x，y) ，但是非常

Note that I am not looking for If(b, x, y) but the very ?. replacement.

推荐答案

VB还具有空条件运算符(从未听说过猫王"运算符):

VB also has the null conditional operator (never heard the term 'Elvis' operator):

Dim name = customer?.name

注意:

1. 在VB中推断键入要求"Option Infer On"(选择推断开启)

1. Inferred typing in VB requires 'Option Infer On'

我非常确定您原来的C#代码示例应该是:var name = customer?.name;

I'm pretty sure that your original C# code sample should have been: var name = customer?.name;

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