Inserting record in Zoho Creator by API in C#

Inserting record in Zoho Creator by API in C#

Hi
I am trying to insert a record in zoho creator by API in C#,i have provided the user name, password and api key as well but when i try to add the record it throws exception 500 internal server error, can you kindly let me know what can be incorrect which is causing the exception, kindly reply ASAP, or it would be great if you can provide me any code snippet in C#.
regards,