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Read Registry using C#

, 8 Dec 2011 CPOL 15.6K 1
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You can try the function below to read values from the Registry:myRegistry.Read("MY_KEY");where: input: the key name (string)output: the value of the key (string)using System;using Microsoft.Win32; public string Read(string KeyName){ // Opening the registry key ...

You can try the function below to read values from the Registry:

myRegistry.Read("MY_KEY");

where:


  • input: the key name (string)
  • output: the value of the key (string)
using System;
using Microsoft.Win32;  
public string Read(string KeyName)
{
    // Opening the registry key
      RegistryKey rk = baseRegistryKey ;
    // Open a subKey as read-only

    RegistryKey sk1 = rk.OpenSubKey(subKey);
    // If the RegistrySubKey doesn't exist -> (null)

    if ( sk1 == null )
    {
        return null;
    }
    else
    {
        try 
        {
       // If the RegistryKey exists I get its value or null is returned.        
         return (string)sk1.GetValue(KeyName.ToUpper());
        }
        catch (Exception e)
        {
            ShowErrorMessage(e, "Reading registry " + KeyName.ToUpper());
            return null;
        }
    }
}

Note: if MY_KEY doesn't exist, the Read function will return null.

Find some more functions to perform write, delete a single key, delete a subkey, and many more from this link: Read, write and delete from registry with C#[^]. In addition, have a look there-Reading and Writing to the Registry][^] to get detailed lessons on how to read and write to the Registry.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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RaviRanjankr
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An Indian, who loves his country, believes in freedom, He is an enthusiast Techie and crazy learner. He is passionate about Technologies and social media. He holds bachelor degree of CS in Information Technology and now pursuing Master degree in Computer Application.

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