using Microsoft.Data.ConnectionUI;
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            using (var dlg = new DataConnectionDialog())
            {
                DataSource.AddStandardDataSources(dlg);

                dlg.SelectedDataSource = DataSource.SqlDataSource;

                dlg.SelectedDataProvider = DataProvider.SqlDataProvider;

                dlg.ConnectionString = string.IsNullOrEmpty(currString) ? String.Empty : currString;

                if (DataConnectionDialog.Show(dlg, this) == DialogResult.OK)
                {
                    currString = dlg.ConnectionString;
                }

            }