Failing to update my Data

Question

Hello guys I'm a novice C# developer I'm having a problem adding data in the database. I'm sending code to be helped finding out where I have made a mistake

Nilesh Shah · Answer

While asking question here it will be better if you also include along with your code: * What's not working as per your expectation? * Is there any error? Also post error and stack trace if possible * Have you tried anything? Post what did you try so that others don't suggest that in asnwer.

Vincent Maverick Durano · Answer

Read on: http://www.c-sharpcorner.com/UploadFile/8c19e8/programming-problems-and-finding-solutions/