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Raj 6
How to add a custom button to detail page of a object and that custom button should link to a trigger
How to add a custom button to detail page of a object and that custom button should link to a trigger
What you can do is have the trigger logic implemented in a class method and call that method from the button.
reference: https://developer.salesforce.com/forums?id=906F000000091bOIAQ
http://salesforcesource.blogspot.sg/2009/06/triggering-apex-method-with-custom.html