I had a look at the Documents for Grid - on the Wiki page.
I do thank you for the Help and Assistance on this.
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If we try to perform all the validation on the server side then naturally the server is will take time to process the details and finally it will give a response to the client.
Great for "required fields" such as email addresses!
In this scenario if you add a Required Field Validator, the validator can not validate the Drop Down List.
If user selects Yes option from the first dropdown he must type value in autopostback for dropdownlist in how to set autopostback for dropdownlist in mvc.net?
I didn't find anything online about this so I debugged the ASP.
This should happen for all 3 Dropdownlist and cycle thou them if more than One row exists.