environment.machineNameがゼロの長さの文字列を返すことは可能ですか？

Question

私は顧客サイトで奇妙な誤りを追いかけて、Environment.MachineNameが長さゼロの文字列を返す可能性があるかどうか疑問に思いました。ドキュメントはレジストリから読み込まれるが、どこで指定されていません。マシンにNetBIOSの名前を持つことができないが、ただ尋ねたかったと想像できません。

編集

調査後、これが長さゼロの文字列を返さなかったように見えますが、実行可能であれば興味がありました。

Answer 1

I don't know if it can be an empty string, sorry, but concerning the registry you might want to check the following (and subkeys):

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\ComputerName\ActiveComputerName
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\ComputerName\ComputerName

On my system it is actually looking at HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\ComputerName\ActiveComputerName\ComputerName:

BTW, as you can see I tried to figure this out using SysInternals Process Monitor, but initially failed. Then i figured, that the above keys (and some related ones) are suppressed by default. Just in case you try the same be aware of that.

You might also check the value of the %COMPUTERNAME%. Although I have no reference or direct evidence, I would assume that it gets its value from the same source.

I know this is not a real answer to your question, but it wouldn't fit in a comment either.