I have a small issue with SPLongOperation, basically what i'm doing i have something to happen in "OnPreLoad" method ... In this method i start a long processing operation and i call SPLongOperation, ...
I have the same problem as SPLongOperation only starts at operation end. (which wasn't solved if you read the last comment). I have a LongRunningProcess in a webpart. The "Process wheel page" shows ...
I'm using an AppPage showed up in a ModalDialog and when I click on a button action I try to start a SPLongOperation process, but it only shows the processing panel right before it ends. here is the ...