/// <summary>
/// Helper for avoiding refresh if Window is ICancellable and Cancelled
/// </summary>
/// <param name="window"></param>
private void SetFilter(Window window)
{
if (window is ICancellable &&
((ICancellable)window).Cancelled)
{
return;
}
SetFilter(SelectedNode == null? null : SelectedNode.GetData());
}
private void DeleteSelected()
{
try
{
if (SelectedNode == null)
{
MessageBoxFactory.ShowError("No item selected");
return;
}
INodeData parent = null;
if (SelectedNode.IsBook)
{
Book bk = (Book)SelectedNode.GetData();
if (!MessageBoxFactory.ShowConfirmAsBool("Delete book and all notes for '" + bk.Title + "'?", "Delete Book"))
{
return;
}
parent = bk.DefaultTopic;
Util.DB.Books.Remove(bk);
}
else if (SelectedNode.IsNote)
{
Note n = (Note)SelectedNode.GetData();
if (!MessageBoxFactory.ShowConfirmAsBool("Delete " + n.OriginalText + "'?", "Delete Note"))
{
return;
}
parent = n.Book;
Util.DB.Notes.Remove(n);
}
else if (SelectedNode.IsTopic)
{
Util.DB.Topics.Remove((Topic)SelectedNode.GetData());
}
else
{
throw new Exception("Type not supported: " + SelectedNode.GetDataType());
}
Util.DB.SaveChanges();
SetFilter(parent);
}
catch (Exception e)
{
Util.DB.RejectChanges();
MessageBoxFactory.ShowError(e);
}
}