SQL Server例外:超时过期。在操作完成之前经过的超时时间或服务器没有响应

I have created a login page in asp.net and created a user and role in asp.net membership, after login I have a query in my page load method to check the role of user and display a view of the page as per that user but I am getting this error.I have created a login page in asp.net and crea