Can CallbackService change a Form?

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I have a problem with a CallbackService on WCF. I want to change a listbox from callback action, but any form isn't available from callbackservice. Is it possible to change some forms from callbackservice? I exactly want to put text in the listbox.

Posted 11-May-11 23:16pm

Skynet87

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Eduard Keilholz 12-May-11 5:58am

What dou you mean with 'is not available'?

Sandeep Mewara 12-May-11 6:26am

Got any error?

Skynet87 12-May-11 6:46am

Ive made mistake - and public code but no solution.

2 solutions

Solution 3

Hi i work with a conference software but i just found out the program can do callback too.
If it helps, th link is here: Link[^]

If not, sorry to interrupt.

Posted 7-Jun-11 21:27pm

August Daubert

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BobJanova · Accepted Answer · 2011-05-12T02:17:00

Your CallbackService class should take a form as a constructor parameter and store that in a field so it is available in callback methods. Don't forget to use Begin/EndInvoke (or just Invoke if it's for short things) for updating UI controls, as I would expect that that callback is called in a different thread.