Object reference no set to an instance or object ?

manny cash

Member
Joined
Oct 19, 2024
Messages
20
Programming Experience
Beginner
Hi People, blessings

I had create a teble, Primary, key 2 datetimepicker and the rest NVarchar. Now I have 2 button clicks, Add and Save, the fields and the textbox are the same. When I ran it, I got this error. I was looking with another programmer, and he and I couldn't fix it. In this case I need your help because you are experienced in programming. Here is a picture of my code. Thank you in advance, guys.

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