VS里的配置数据库连接窗口调用

MSDASC.DataLinks _dataLinks = new MSDASC.DataLinksClass();
            ADODB.Connection _connection = new ADODB.ConnectionClass();
            object obj = _connection as object;
            bool dialogresult = _dataLinks.PromptEdit(ref   obj);
            if (dialogresult)
            {
                txtConString.Text = _connection.ConnectionString;
            }