读取注册表项值 [英] Read a registry key value

问题描述

我正在尝试使用以下代码读取简单的注册表键值:

I was trying to read a simple registry keyvalue using the below code:

Dim aa As Object
aa = Registry.GetValue("HKEY_CURRENT_USER\\Software\\Avira\\AntiVir Desktop", "LastCommandLine", Nothing)

变量值始终为空.

我在这里做错什么了?
请指教.

然后我在C#代码中尝试了同样的方法，并且可以正常工作.
代码如下:

aa variable value is always Nothing.

What am I doing wrong here?
Please advise.

Then I tried the same in C# code and its working fine.
The code is As below:

object  aa = Registry.GetValue("HKEY_CURRENT_USER\\Software\\Avira\\AntiVir Desktop","LastCommandLine",null);

推荐答案

Try

Dim aa As Object
       aa = Registry.GetValue("HKEY_CURRENT_USER\Software\Avira\AntiVir Desktop", "LastCommandLine", Nothing)

你知道为什么吗?您真正需要的关键值是"HKEY_CURRENT_USER \ Software \ Avira \ AntiVir Desktop"；而双"\\"仅表示通过C#语法转义了"\"，而不是VB.NET.要使C#代码相似，请使用详细修饰符``@'':

Can you see why? The key value you really need is "HKEY_CURRENT_USER\Software\Avira\AntiVir Desktop"; and the double ''\\'' simply means escaped ''\'', by C# syntax, not VB.NET. To make C# code similar, use verbose modifier ''@'':

object aa = Registry.GetValue(@"HKEY_CURRENT_USER\Software\Avira\AntiVir Desktop","LastCommandLine", null);

现在好多了? :-)

—SA

Better now? :-)

—SA

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