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I have a method in my controller that kicks of a job on the server. I’ll use a Ajax call (jQuery) to start this via a link on the page. This can take a while and I need to show some status on the page. I don’t necessarily need ‘26% done …’ but more a status showing ‘working’ or ‘done’.
How do a get jQuery to continuously pull for the status of the job? Or should it be solved differently?
You will need some sort of state to hold the status of the task which both the task and Javascript can Access. For example Server Cache. Say you use a key of TaskComplete.
Kick off your task with javascript through AJAX
While Your Task Is Running
Task updates Server Cache Item
End While
Parallel
Use Javascript to poll the cache for a value
Kick off your task with javascript through AJAX
While Ajax Response Not Task Complete
wait 2 seconds
Call a javascript function through ajax again to read the value of the Server Cache Item
Execute relevant task based on its value
An Article you may find useful is here:
http://msdn.microsoft.com/en-us/magazine/cc163393.aspx