My below method is throwing an error:
Error 205 An object reference is required for the non-static field, method, or property 'System.Collections.DictionaryEntry.Key.get
 static string GetConfigValue(NameValueCollection tempCollection)
    {
        string paymentDisposition = string.Empty;
        Hashtable tempCollectionHash = new Hashtable();
        foreach (string key in tempCollection.Keys)
        {
            tempCollectionHash.Add(key, tempCollection[key]);
        }
        if(tempCollectionHash.ContainsKey("Cancellation"))
            paymentDisposition = (string)tempCollectionHash["Cancellation"];
        foreach (DictionaryEntry entry in tempCollectionHash)
        {
           if (DictionaryEntry.Key.Contains(" Cancellation"))
           {
               paymentDisposition = DictionaryEntry.Value.;
           }
        }
        return paymentDisposition;
    }
any idea why it's throwing error.
 
    