private void accDataSource_SelectedElementChanged(object sender, SelectedElementChangedEventArgs e) { if (this.accDataSource.SelectedElement != null) { this.btnOK.Enabled = true; ConnectInfo info = this.accDataSource.SelectedElement.Tag as ConnectInfo; this.connectionInfo = info.Clone(); this.txtConnectionString.Text = ""; this.pg.SelectedObject = this.connectionInfo; } else { this.btnOK.Enabled = false; } }