c# - Can't read value from existing key -


I can not read any value with a reg key. The path is correct for some strange reason .. and the key exists is. I do not know why it can not be read.

I have the code (which reads the registry) 

  string local = Microsoft.Win32.Registry LocalMachine.ToString (); String javaarag path = "\\ software \\ javasoft \\ Java runtime environment \"; if (JavaRagpath! = Null) {string javaVersion = Registry.readReg (local + Java rigpath, "current version"). ToString (); string JavaHome = Registry.readReg (Javreg Path + "\\" + JavaWarsian, "Javomome"). ToString (); Return Javohom;} ​​  
 Registry cs (read)  
  public static object readReg (string keypath, string keyname) {key = Microsoft.Win32.Registry.CurrentUser OpenSubKey (mainpath); return key. Value (keyName);}   
 And here is an image from Registry Editor. To verify the path and so on  
 But it only gives one NPE. ..  
 Message: An unbundled exception of type 'System.NullReferenceException' is in bookkeeping GUI Project.exe  
 Additional information: The object reference is not set for an instance of an object.  
  
 Any help on this?   
 
 
 some Problems that I see I am  
 The first  readReg  actually  OpenSubKey > on the  registry. Current user is calling . He reads from  HKCU  you need to use for  Registry.LocalMachine  to  HKLM . Pass the root key as an additional parameter to  readReg .  
 On top of that you may be redirected to your 32bit process (well, I believe your process is 32 bits) to the 32 bit view of the registry. But the key you are looking for is in the 64 bit view of the registry.  
 Your attempt to reach  HKLM \ Software \ / code> in other words is being redirected to  HKLM \ Software \ Wow6432Node .  
 Calculate your 32-bit process to allow access to the 64 bit views of the registry. Your  readReg  function should be modified to check the errors in the call on  OpenSubKey . It can return the method  null . You should deal with that scenario in a cleaner way, then throw a  NullReferenceException .

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