/// <summary>
        /// Import an xml file
        /// </summary>
        private void Import()
        {
            try
            {
                var ofd = new OpenFileDialog();
                ofd.FileOk += (sender, args) => args.Cancel = string.IsNullOrEmpty(ofd.FileName) || !Path.GetExtension(ofd.FileName.ToLower()).Equals(".xml");
                var result = ofd.ShowDialog();
                if (result.Value)
                {
                    var deserializedLanguages = new LanguageFileParser().DeserializeLanguagesFile(ofd.FileName);

                    _languages.Clear();
                    _possibleValues.Clear();

                    foreach (var possibleValue in deserializedLanguages.SelectMany(x => x.Second).Select(x => x.ResourceName).Distinct().ToList())
                    {
                        _possibleValues.Add(possibleValue);
                    }

                    foreach (var pair in deserializedLanguages)
                    {
                        var language = new Pair <Language, ObservableCollection <LocaleStringResourceModel> >();
                        language.First  = pair.First;
                        language.Second = new ObservableCollection <LocaleStringResourceModel>();
                        foreach (var possibleValue in _possibleValues)
                        {
                            var resourceModel = new LocaleStringResourceModel(pair.Second.FirstOrDefault(x => x.ResourceName == possibleValue));
                            if (resourceModel.IsMissing)
                            {
                                resourceModel.ResourceName = possibleValue;
                            }
                            language.Second.Add(resourceModel);
                        }
                        _languages.Add(language);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error");
            }
        }
        /// <summary>
        /// Import an xml file
        /// </summary>
        private void Import()
        {
            try
            {
                var ofd = new OpenFileDialog();
                ofd.FileOk += (sender, args) => args.Cancel = string.IsNullOrEmpty(ofd.FileName) || !Path.GetExtension(ofd.FileName.ToLower()).Equals(".xml");
                var result = ofd.ShowDialog();
                if (result.Value)
                {
                    var deserializedLanguages = new LanguageFileParser().DeserializeLanguagesFile(ofd.FileName);

                    _languages.Clear();
                    _possibleValues.Clear();

                    foreach (var possibleValue in deserializedLanguages.SelectMany(x => x.Second).Select(x => x.ResourceName).Distinct().ToList())
                    {
                        _possibleValues.Add(possibleValue);
                    }

                    foreach (var pair in deserializedLanguages)
                    {
                        var language = new Pair<Language, ObservableCollection<LocaleStringResourceModel>>();
                        language.First = pair.First;
                        language.Second = new ObservableCollection<LocaleStringResourceModel>();
                        foreach (var possibleValue in _possibleValues)
                        {
                            var resourceModel = new LocaleStringResourceModel(pair.Second.FirstOrDefault(x => x.ResourceName == possibleValue));
                            if (resourceModel.IsMissing)
                                resourceModel.ResourceName = possibleValue;
                            language.Second.Add(resourceModel);
                        }
                        _languages.Add(language);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error");
            }
        }