C# How to get software manifest through windows registry

foreach (string SoftwareName in ())
{
   += SoftwareName + ;
}
////////////////////////////////////////////////////////////////////////
/// <summary>
/// Windows system obtains software list/// </summary>
/// <returns>String [] softwareList</returns>
public String [] SoftwareList()
{
 String[] softwareList = null;
 //Dynamic array ArrayList list = new ArrayList();
 try
 {
  //Open the registration list uninstall option  //SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
  RegistryKey Key = Microsoft.("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");
  if (Key != null)//If the system prohibits access, return null  {
   foreach (String SubKeyName in ())
   {
    //Open the corresponding software name    RegistryKey SubKey = (SubKeyName);
    if (SubKey != null)
    {
     String SoftwareName = ("DisplayName", "Nothing").ToString();
     //If not retrieved, the dynamic array will not be saved     if (SoftwareName != "Nothing")
     {
      (SoftwareName);
     }
    }
   }
   //Capt into a string array to prevent the overflow of modified data   softwareList = (string[])(typeof(string));
  }
 }
 catch (Exception err)
 {
  ("Error message:" + ());
 }
 return softwareList;
}