private void treeFolders_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
try
{
FolderView fv = (FolderView)e.NewValue;
view.SelectedFolder = fv;
if (fv != null)
{
view.SetMessage(null);
ShowMessage(null);
fv.MessageViews.Clear();
ShowStatus("Reading messages...");
Mouse.OverrideCursor = Cursors.Wait;
// Read messages on a background thread so we can keep the UI in sync
Task.Factory.StartNew(() =>
{
try
{
xstFile.ReadMessages(fv.Folder);
// We may be called on a background thread, so we need to dispatch this to the UI thread
Application.Current.Dispatcher.Invoke(new Action(() => fv.UpdateMessageViews()));
}
catch (System.Exception ex)
{
MessageBox.Show(ex.ToString(), "Error reading messages");
}
})
// When loading completes, update the UI using the UI thread
.ContinueWith((task) =>
{
Application.Current.Dispatcher.Invoke(new Action(() =>
{
ShowStatus(null);
Mouse.OverrideCursor = null;
}));
});
// If there is no sort in effect, sort by date in descending order
SortMessages("Date", ListSortDirection.Descending, ifNoneAlready: true);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Unexpected error reading messages");
}
}
private void treeFolders_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
Folder f = (Folder)e.NewValue;
view.SelectedFolder = f;
if (f != null)
{
view.SetMessage(null);
ShowMessage(null);
f.Messages.Clear();
ShowStatus("Reading messages...");
Mouse.OverrideCursor = Cursors.Wait;
// Read messages on a background thread so we can keep the UI in sync
Task.Factory.StartNew(() =>
{
try
{
xstFile.ReadMessages(f);
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message, "Error reading messages");
}
})
// When loading completes, update the UI using the UI thread
.ContinueWith((task) =>
{
Application.Current.Dispatcher.Invoke(new Action(() =>
{
ShowStatus(null);
Mouse.OverrideCursor = null;
}));
});
// If there is no sort in effect, sort by date in descending order
if (listViewSortCol == null)
{
string tag = "Date";
listViewSortCol = ((GridView)listMessages.View).Columns.Select(c => (GridViewColumnHeader)c.Header).Where(h => h.Tag.ToString() == tag).First();
listViewSortAdorner = new SortAdorner(listViewSortCol, ListSortDirection.Descending);
AdornerLayer.GetAdornerLayer(listViewSortCol).Add(listViewSortAdorner);
listMessages.Items.SortDescriptions.Add(new SortDescription(tag, ListSortDirection.Descending));
}
}
}