Opensubkey null
Web5 de nov. de 2024 · You should test the returned value from any of the Registry calls to see if it is null before proceeding. You should never write code like: C# RegistryKey rk = Registry.LocalMachine.OpenSubKey (Key); return rk.GetValue (Value) != null; Since the returned value from OpenSubKey may be null. Posted 4-Nov-20 23:17pm Richard … Web1 de abr. de 2009 · RegistryKey multimediaKey = localMachineRegKey.OpenSubKey ("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Multimedia"); And here is the …
Opensubkey null
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Web1. It is probably not OpenSubKey () that is causing the null reference exception, but the baseKey.GetValue ().ToString () call. The baseKey.GetValue () returns null (because in … WebOpenSubKey (string name, bool writable); 参数 name String 要打开的子项的名称或路径。 writable Boolean 如果需要项的写访问权限,则设置为 true 。 返回 RegistryKey 请求的子项;如果操作失败,则为 null 。 例外 ArgumentNullException name 为 null 。 ObjectDisposedException RegistryKey 已关闭(无法访问已关闭的项)。 …
Web18 de nov. de 2015 · using Microsoft.Win32; RegistryKey home = Registry.LocalMachine.OpenSubKey("Software\\Microsoft\\Windows NT\\CurrentVersion"); string windowsRegisteredOwner = home.GetValue(„RegisteredOwner”).ToString(); It returns null!!! Not string.Empty, or my name, null... Web我有一個帶有以下代碼的DLL 我想在ac console app中使用所有返回的 即return IISinstall.ToString 值作為console.writeline IISinstall 我假設我所做的一切都是完全錯誤如果是這樣的話我將如何在控制台應用程序中實現我的DLL。 adsby
Web10 de abr. de 2024 · There are two methods: one is to query whether the target key exists, and if it exists, it will save the default value of the target key in the target txt file. The second method is to find out whether the target backup file exists, and restore the key value if it exists. Here's the code: C# WebCreates a new subkey or opens an existing subkey for write access, using the specified permission check option and registry security. CreateSubKey (String, Boolean, …
Websubkey is null. SecurityException The user does not have the permissions required to create or open the registry key. ArgumentException permissionCheck contains an invalid value. ObjectDisposedException The RegistryKey on which this method is being invoked is closed (closed keys cannot be accessed). UnauthorizedAccessException
Web28 de mar. de 2008 · subkey "Microsoft" exists. However, notice the following: RegistryKey key1 = Registry.LocalMachine.OpenSubKey( "Software" ); // This returns the key -- … dvla check registered ownerWeb12 de fev. de 2015 · using (RegistryKey registry = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, … dvla check ownership of vehicleWeb5 de abr. de 2024 · The second parameter of the OpenSubKey method is a Boolean that identifies whether our access is for reading or writing. Use false in the second parameter for reading a value, and use true for writing a value. That way you can prevent unplanned, unwanted write operations. crystal brass knucklesWeb2 de jun. de 2015 · Registry OpenSubkey returns null, although it is there. Ask Question. Asked 7 years, 10 months ago. Modified 3 years, 4 months ago. Viewed 2k times. 1. I … crystal brantfordWeb26 de set. de 2013 · string path = @"Software\Microsoft\Office" RegKey regkey = Registry.LocalMachine.OpenSubKey (path); on a 64bit system with a 32bit application, … dvla check theory test bookingWeb3 de mai. de 2013 · OpenSubKey under HKLM\Software returning null. The registry entry exists on the machine. key is always null. I don't think that this is a security issue. I'm … crystal braves ff14Webusing (var alwaysUnloadDLLKey = Registry.LocalMachine.OpenSubKey (KeyName_AlwaysUnloadDll)) { return alwaysUnloadDLLKey != null; } } 0 8. Example … dvla check road tax and mot