void Provider_FetchRevisionHistoryCompleteEvent(object sender, RevisionHistoryFetchCompletedEventArgs args)
{
BusyIndicator.Visibility = Visibility.Collapsed;
IsEnabled = true;
Cursor = Cursors.Arrow;
TaskItem lastTaskItem = null;
stkRevision.Children.Clear();
var headerItem = new RevisionHistoryItem {Header = true};
stkRevision.Children.Add(headerItem);
foreach (TaskItem revision in args.History.TaskVersions)
{
var item = new RevisionHistoryItem
{
Margin = new Thickness(0, 0, 0, 10),
Changes = GetRevisionChanges(lastTaskItem, revision)
};
stkRevision.Children.Insert(1, item);
lastTaskItem = revision;
}
}
private void LongOperationToFetchRevisionHistory(object param)
{
Thread.Sleep(2000);
if (FetchRevisionHistoryCompleteEvent != null)
{
RevisionHistoryFetchCompletedEventArgs args;
try
{
args = new RevisionHistoryFetchCompletedEventArgs();
args.History = new RevisionHistory();
int count = 5;
while (count > 0)
{
RevisionHistory history = new RevisionHistory();
/*
* fill in other properties here
*/
count--;
}
}
catch (Exception ex)
{
args = new RevisionHistoryFetchCompletedEventArgs (ex, true, null);
args.History= new RevisionHistory();//return an empty collection nevertheless
}
Deployment.Current.Dispatcher.BeginInvoke(delegate()
{
FetchRevisionHistoryCompleteEvent(this, args);
});
}
}
void omdQuery_QueryVersionsCompleted(object sender, QueryVersionsCompletedEventArgs e)
{
List<TaskItem> items = TaskItemFactory.ConvertTasksFromOMD(e.Result.rows);
ArchiveHelper.ProcessMessage(e.Result.message);
RevisionHistoryFetchCompletedEventArgs args = new RevisionHistoryFetchCompletedEventArgs();
RevisionHistory history = new RevisionHistory();
foreach (TaskItem item in items)
{
history.TaskVersions.Add(item);
}
args.History = history;
if (FetchRevisionHistoryCompleteEvent != null)
FetchRevisionHistoryCompleteEvent(this, args);
}