Web Forms :: How To Display A Message To Warn The User That Has Already Voted

Jun 2, 2010

I'm getting this error code in a voting system which I made.

"Violation of PRIMARY KEY constraint 'PK_Awards'. Cannot insert duplicate key in object 'dbo.Awards'. The statement has been terminated."

It's good because it means I am stopping people from voting twice, however, I want to display an error message in the site, and I want to make this occurance user friendly, as I have no idea how this error will look when the website is live.

Here is all of my code:

[Code]....

How will this error look when the website is live? How can I display a message to warn the user that he has already voted?

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