private void savebtn_Click(object sender, RoutedEventArgs e) { var isKeyspaceExists = false; var dbOperator = new DatabaseOperationsReader(); var isAvailable = dbOperator.SaveDataToDb(_exportMetadataList, ref isKeyspaceExists); if (isAvailable) { Visibility = Visibility.Hidden; var saveSummary = new Summary(); saveSummary.ShowSummary(_exportMetadataList); var win = Window.GetWindow(this); var homePage = (HomePage)(win); if (homePage != null) homePage.ContentArea.Content = saveSummary; } else { MessageBox.Show(!isKeyspaceExists ? "This Keyspace doesnot Exists." : "This ColumnFamily already exists."); } }