static void attachmentsAnchor_Click(object sender, RoutedEventArgs e)
{
HyperlinkButton source = sender as HyperlinkButton;
if (source == null)
{
return;
}
StackPanel container = source.Tag as StackPanel;
if (container == null)
{
return;
}
AttachmentFieldValue attachmentFieldValue = source.DataContext as AttachmentFieldValue;
if (attachmentFieldValue == null)
{
return;
}
if (attachmentFieldValue.AttachmentsProvider == null)
{
return;
}
attachmentFieldValue.AttachmentsProvider.LoadAttachments(attachmentFieldValue.LinkUrl, (o, args) =>
{
container.Dispatcher.BeginInvoke((Action) delegate
{
if (args == null)
{
return;
}
container.Children.Clear();
buildAttachmentsPanel(container, args.AttachmentInfo);
});
}, (o, args) =>
{
container.Dispatcher.BeginInvoke((Action) delegate
{
if (args == null || args.Exception == null)
{
return;
}
container.Children.Add(new TextBlock()
{
Text = args.Exception.Message
});
});
}, null);
}
private static void setupAttachments(AttachmentsPanel panel, AttachmentFieldValue attachmentFieldValue)
{
if (attachmentFieldValue != null && attachmentFieldValue.AttachmentsProvider != null)
{
if (attachmentFieldValue.AttachmentsProvider.HasAlreadyRetrievedAttachments())
{
MultipleAttachmentsInfo attachments = attachmentFieldValue.AttachmentsProvider.GetAttachments();
panel.setAttachments(attachments);
}
else
{
attachmentFieldValue.AttachmentsProvider.LoadAttachments(attachmentFieldValue.LinkUrl, (o, args) =>
{
panel.Dispatcher.BeginInvoke((Action) delegate
{
if (args == null)
{
return;
}
AttachmentsPanel pnl = args.UserState as AttachmentsPanel;
pnl.setAttachments(args.AttachmentInfo);
});
}, (o, args) =>
{
panel.Dispatcher.BeginInvoke((Action) delegate
{
if (args == null || args.Exception == null)
{
return;
}
AttachmentsPanel pnl = args.UserState as AttachmentsPanel;
pnl.Error = args.Exception.Message;
pnl.ErrorVisibility = Visibility.Visible;
});
}, panel);
}
}
}
