public void Save(string seller) { var sourceType = GetInputSuggestionSourceType(); if (sourceType != _ori) { Params.InputSuggestion.SourceType = GetInputSuggestionSourceType(); CiteTableManagerV2.ReInitCiteTables(); } bool?isChecked = cboxUseDownKey.IsChecked; Params.InputSuggestion.IsUseDownKey = cboxUseDownKey.IsChecked.HasValue && cboxUseDownKey.IsChecked.Value; if (Params.InputSuggestion.IsUseDownKey != _oriIsUseDowKey) { HotKeyHelper.RegisterDownKey(); } }