Incomplete data is saving in the data base instead of saving complete data

Sir,
I am new to VBA I will explain my problem, I have created a vba for a user form in which the data I entered should be saved in the data sheet2 viz Sheet("Data").Its working but if I press SUBMIT button incomplete data is also saving in the data sheet.In short I need the code as the data should be saved if and only if all the fields are filled in the user form.Please do make it correct.Here is my code

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Moderator Note:

Pls use code tags around your code next time as per forum rules.