How to read ManagementObject Collection in WMI using C#

I found a code on net and have been trying to get more information about mo[].

I am trying to get all the information contained in ManagementObjectCollection.

Since parameter in mo is looking for an string value which I dont know, how can I get all the values without knowing its parameter values. Or if I want to get all the indexer values related to mo in ManagementObjectCollection

ManagementObjectSearcher objOSDetails = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem");
ManagementObjectCollection osDetailsCollection = objOSDetails.Get();

foreach( ManagementObject mo in osDetailsCollection )
{ 
   _osName  = mo["name"].ToString();// what other fields are there other than name
   _osVesion = mo["version"].ToString();
   _loginName = mo["csname"].ToString();
}