public static void ShowSingleInstance(SearchAndReplaceMode searchAndReplaceMode) { if (Instance == null) { Instance = new SearchAndReplaceFrom(searchAndReplaceMode); Instance.Show(WorkbenchSingleton.MainForm); // } else { if (searchAndReplaceMode == SearchAndReplaceMode.Search) { Instance.ToolStripButton_Find.PerformClick(); } else { Instance.ToolStripButton_Replace.PerformClick(); } Instance.Focus(); } }