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Arup SarkarArup Sarkar 

Triggering a callout during field tab out


We have the following scenario where user will enter few fields, the value of the fields need to be validated from back office where the data exists. The data will be available via web services. Imagine a user is putting a employee number in a field, when the user is tabbing out a callout whould happen.the number will be passed to the callout and a xml or json response will be generated. Depending on that further user action will proceed to fill in the form.


How can this functionality be achieved in using visualforce, javascript and apex ?


Any help will be appreciated.