“如果 X = Nothing”的 FXCop 规则 当 X 是可为空整数时
1 Dim x as Integer? = Nothing
2 If x = Nothing Then
3 'this is what I think will happen
4 Else
5 'this is what really happens
6 End If
正确的写法是“If x Is Nothing”。
是否有 FXCop 规则来检查这一点？ 或者更好的是，有人可以告诉我如何写自己的吗？
乔纳森
1 Dim x as Integer? = Nothing
2 If x = Nothing Then
3 'this is what I think will happen
4 Else
5 'this is what really happens
6 End If
The proper way to write that is "If x Is Nothing".
Is there a FXCop rule that checks for this? Or better yet, can someone show me how to write my own?
Jonathan
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可以在这里找到编写自定义 FxCop 规则的另一个好资源：binarycoder
Another good resource for writing custom FxCop rules can be found here: binarycoder
学习为 FXCop 编写自定义规则的最佳选择是论坛 此处 它涉及编写自定义程序集来解析代码并检查它。
具体来说，您想要编写一条规则，表示“不要对可空类型使用 = Nothing，而是确保使用 hasvalue。
Your best bet to learn to write custom rules for FXCop is the forum here It involves writing an custom assembly to parse the code and check it.
Specifically you want to write a rule that says "Instead of using = nothing for a nullable type make sure you use hasvalue.