"Accepted Answer" button not shown for accept my own answer

Question

In my first question here, on c-sharpcorner.com, I've posted a question- which I've given an solution/answer.

 

This is the link of my question: https://www.c-sharpcorner.com/forums/asyncfileupload-control-generates-missingmanifestresourceexception 

 

I came from Stack Overflow and aspformus.net, where (in the mentioned websites), the OP (original poster) can accept their own answer, but, it seems in c-sharpcorner.com doesn't have this feature.

 

I might be missing something - probably, I didn't reply to my question, or due my low reputation, I'm unable to select my own answer.

 

I've search in the forums of c-sharpcorner about this issue, but, it's not clear to me how can I select/mark/accept my own answer.

 

How can I select/mark/accept my own answer?

 

Sorry if this question doesn't belong in this category, but, here (https://www.c-sharpcorner.com/Forums/MustRead.aspx) says: 

 

Quote: 

• If you do not find a proper category, post your question on one of the General or Miscellaneous categories.