OpenTween.TweenMain.ShowSearchDialog C# (CSharp) Method

        private void ShowSearchDialog()
        {
            if (this.SearchDialog.ShowDialog(this) != DialogResult.OK)
            {
                this.TopMost = this._cfgCommon.AlwaysTop;
                return;
            }
            this.TopMost = this._cfgCommon.AlwaysTop;

            var searchOptions = this.SearchDialog.ResultOptions;
            if (searchOptions.Type == SearchWordDialog.SearchType.Timeline)
            {
                if (searchOptions.NewTab)
                {
                    var tabName = Properties.Resources.SearchResults_TabName;

                    try
                    {
                        tabName = this._statuses.MakeTabName(tabName);
                    }
                    catch (TabException ex)
                    {
                        MessageBox.Show(this, ex.Message, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }

                    var resultTab = new LocalSearchTabModel(tabName);
                    this.AddNewTab(resultTab, startup: false);
                    this._statuses.AddTab(resultTab);

                    var targetTab = this._statuses.Tabs[this._curTab.Text];

                    Func<string, bool> stringComparer;
                    try
                    {
                        stringComparer = this.CreateSearchComparer(searchOptions.Query, searchOptions.UseRegex, searchOptions.CaseSensitive);
                    }
                    catch (ArgumentException)
                    {
                        MessageBox.Show(Properties.Resources.DoTabSearchText1, Properties.Resources.DoTabSearchText3, MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }

                    var foundIndices = targetTab.SearchPostsAll(stringComparer).ToArray();
                    if (foundIndices.Length == 0)
                    {
                        MessageBox.Show(Properties.Resources.DoTabSearchText2, Properties.Resources.DoTabSearchText3, MessageBoxButtons.OK, MessageBoxIcon.Information);
                        return;
                    }

                    var foundPosts = foundIndices.Select(x => targetTab[x]);
                    foreach (var post in foundPosts)
                    {
                        resultTab.AddPostQueue(post);
                    }

                    this._statuses.DistributePosts();
                    this.RefreshTimeline();

                    var tabPage = this.ListTab.TabPages.Cast<TabPage>()
                        .First(x => x.Text == tabName);

                    this.ListTab.SelectedTab = tabPage;
                }
                else
                {
                    this.DoTabSearch(
                        searchOptions.Query,
                        searchOptions.CaseSensitive,
                        searchOptions.UseRegex,
                        SEARCHTYPE.DialogSearch);
                }
            }
            else if (searchOptions.Type == SearchWordDialog.SearchType.Public)
            {
                this.AddNewTabForSearch(searchOptions.Query);
            }
        }